NORMARC 7000 INSTRUMENT LANDING SYSTEM Installation & Commissioning Handbook Vol. 1 © 1999 Navia Aviation AS 21465-3.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 RECORD OF CHANGES NM 7000 series Part no.: 21465 Change No.: Change No.: Section: Entered by: Rev.: Section 1 3.0. Section 2 3.0. Section 3 3.0. Section 4 3.0. Section 5 3.0. Section 6 3.0.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 TABLE OF CONTENTS Installation and Commissioning Handbook Vol.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 SECTION 1 ANTENNA INSTALLATION PROCEDURE Table of contents 1 Civil Work Checks .................................................................................................... 3 1.1 Unpacking .......................................................................................................... 3 2 Localizer Antenna System Assembly ..................................................................... 5 2.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5 Marker beacon installation antenna assembly ...................................................... 19 5.1 Antenna assembly.............................................................................................. 19 5.2 Antenna Cables installation................................................................................ 19 5.3 Antenna Mast erection .....................................................................
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1 Civil Work Checks Check that the civil work is carried out according to NM specifications. • • • • • • • • Correct positions for antenna foundation bolts. Correct dimensions and quality of bolts in concrete. Check note 4 and 5 on LLZ foundation drawing. Earth sticks/plates at shelter and antenna foundation. Shelter interior installations. Mains power installations in shelter and antenna assembly.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2 Localizer Antenna System Assembly 2.1 Positioning of antenna frame work By means of a theodolite determine the exact position of the extended runway centre line and mark the 90 degrees angle points on each concrete slab. See Figure 2-1. Figure 2-1 Alignment of antenna frame work. 2.2 Framework assembly See Vol. 2 Section 2 Chapter 6. See also Figure 2-1 On middle aluminium bar mark exact centre.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Check antenna spacing after assembly. Repeat for the rear bars and maintain correct spacing distance between the front and rear bars.Tighten all clamping angles. 2.3 Cable duct assembly See Vol. 2 Section 2 Chapter 6. The cable duct sections are numbered and should be assembled according to the drawing. Sections are joined together by means of blind rivets.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 Now the cables can be connected to the antennas. Lift up the rear end 4-5 cm and put something between the flanges to keep them apart. Be careful don’t shake the mast. Connect the cables, take away the support and tighten the flange. Level the antenna masts backward/forward and tighten the long supports.
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50$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2.6 Near Field monitor antenna installation The mast shall be assembled and installed at the extended runway centre line according to dwg.no. 14256A3 Vol. 2 Section 2 Chapter 8. The NF antenna shall be installed horizontally and point towards the centre of the LLZ antenna array. 2.
,167$//$7,21 &200,66,21,1* +$1'%22.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3 Glidepath antenna system assembly/towers 10m and 15m 3.1 General See Volume 2 Section 3 Chapter 6. The site selected for the assembly of the GP mast framework should be of sufficient size to accommodate either the 10 meter or the 15 meter mast. It is also recommended to select a relatively well levelled site to avoid twists or bends in the mast construction which may create difficulties in joining the parts.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 . SPRING W. FLAT W. C1 HBK1130-1 Figure 3-1 Securing: Bolts should be secured by either deformation of threads by use of a chisel or by the use of lock-nuts (double nuts). Ref. Fig. 3-2 . Recommended flat and spring washers Punching of Nut Double Nut Method MAIN NUT FLAT W. SECURING N. MAIN N. FLAT W. ADJUST N. ADJUST NUT HBK 1131-1 Figure 3-2 3.2 Bottom Section 3.2.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.2.3 Diagonal struts Position and bolt diagonal struts, starting with the shorter, pos. 2, and continuing with the longer pos. 3 in accordance with pos. 2, 3, and 4, DWG. 16612A3. 3.2.4 Third vertical leg Repeat the procedure as for 3.2.2 and 3.2.3. Bolt third leg to end of diagonal struts of the other two legs. 3.2.5 Ladder Hoist/lift the ladder pos.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.5.2 Obstruction light The obstruction light is mounted on the bracket (pos. 7) and the power cable is fixed with cable ties to the rear side of the ladder or inside the cable trunking if space is available. 3.6 Antenna suport 3.6.1 Adjustment rails As support for the antennas, the mast is equipped with rails for vertical adjustment, see Dwg. No.: 16643A3 3.6.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.7.2 Antenna cables Antenna cables and monitor cables are carefully laid out in the cable trays such that equal length of all cables is sufficient to be guided into the shelter. However, the excess cables shall be neatly bundled and temporarily fixed to the antenna mast, and protected from damage during later mast erection.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 4 Near field monitor 4.1 Cable installation The NF Monitor cable is first carefully rolled out and positioned such that there is no risk for damage during installation in the cable duct. The cable is fixed to the pulling rope at the NF position end together with and extra rope for maintenance purpose. Connectors and cable labels must be protected against dust, water and wear during the pulling operation.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5 Marker beacon installation antenna assembly 5.1 Antenna assembly See Volume 2 Section 4. The LPDA is first mounted to the antenna mast, horizontally on the ground. Position the assembly such that the base is close to the foundation bolts. 5.2 Antenna Cables installation For Dual Antenna system the Distribution Network is preferably installed inside shelter.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 SECTION 2 SHELTER INSTALLATION Table of contents 1 General ...................................................................................................................... 3 2 Mechanical installation LLZ/GP .............................................................................. 5 2.1 Mounting Kit MK1343A....................................................................................... 5 2.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1 General Equipments are installed according to interior drawings. All electrical equipment including antenna systems and monitor antennas must be connected to a common earth point. See Volume 2 Chapters «Grounding» for resp. Equipment. Cables are routed the shortest distance in the cable trunks. Use terminal shoes at the cable ends before connecting them to cabinet terminals.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2 Mechanical installation LLZ/GP The «NM7000» cabinet is constructed for mounting on a wall. For easy operation, the keyboard/display section should be in eye/shoulder height (140-160cm). The RF connectors may be mounted either on the cabinet top or the cabinet bottom. The free space required around the cabinet is approximately one by one meter, see figure 2-1 1.0m 0.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 A A 11 Screw M8x25 Split lock washer M8 Flat washer M8 A A POWER POWER B Adjustment screw HBK597-1 Figure 2-2 «NM7000» mounted on wall with MK1343A. 2.2 Moving RF Connectors If desired the RF connectors may be moved from the cabinet top to the bottom or vice versa, as illustrated in figure 2-3. The back section (F) of the main cabinet consists of a connector plate and a blind plate that are interchangeable.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 To interchange the plates, follow these instructions: • Release the nuts (A), washers (B) and flanges (C) on the plates. • Release the ground connections (D) on the connector plate and (H) on the blind plate. • Interchange the plates. • Remount the nuts, washers and flanges in the order shown. • Remount the ground connections (D) and (H). Make shore they are located on the hinge (G) side of the cabinet.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3 Electrical Installation LLZ/GP This paragraph describes the external electrical connections of the «NMnr» main cabinet. 3.1 Connection Overview The ILS main cabinet consists of three connector sites, illustrated in Figure 3-1. • The ILS RF signals to and from the antenna system are connected at the top of the main cabinet. These connectors may be moved to the top, see Mechanical Installation.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.2 Power and Battery The power supply and the backup battery are connected to the power connector rail inside the cabinet back section as shown in Figure 3-2 and 3-3. If two power supplies are used, these are parallel coupled inside one of the power supplies (see Dwg.no.: 17370A3). The cables used should have 6mm2 intersection.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 POWER SUPPLY CONNECTIONS CHARGER 1 CHARGER 2 + + - - + + Current sharing L NG - - Current sharing 1 2 3 4 5 6 7 8 9 L NG 220V FuseY To equipment 0V +27V Power supply Battery warning 1 Battery warning 2 220V FuseX 1 2 3 4 5 6 7 8 9 Figure 3-3 Power Supply connections.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.3 RF Inputs The RF inputs are: • Course Line - CL. • Near Field Antenna - NF. • Displacement Sensitivity - DS. • Clearance - CLR (two frequency applications only). These are connected as shown in Figure 3-4 (front view) . HBK577-2 NF CL CLR DS Figure 3-4 RF input connections. 3.4 RF Outputs The RF outputs are sited at the cabinet top as illustrated in Figure 3-5.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.5 DC Loop (Localizer only) The DC loops are connected to the CI1210A connection interface board in the cabinet back section. Placement and pin out are illustrated in Figure 3-6. • DL_REF* are the reference voltages from the main cabinet. • DL_DETECT* are the return voltages from the antennas. • GND is main cabinet ground. Suitable female connectors are Weidemüller BLZ-5.08/6 or equivalent. TEMP OUTDOOR AC LEVEL ANALOG CH.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.6 Remote Control ( CABINET) The remote control is connected to the CI1210A connection interface board as illustrated in Figure 3-7. The connection of the remote control, remote slave panel and interlock switch is done at the remote control site and covered in Section 2 6.1-6.4. • FSK_[P,N] is the modem line pair. • GND is main cabinet ground. For normal FSK modem operation the straps S9-11 on CI1210A should be mounted.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.7 PC and Modem PC terminals and modems are connected to the standard pin out RS232, 9 pins DSUB connectors on the CI1210A connection interface board as illustrated in Figure 3-8. Recommended connections are: • LOCAL - the PC located at the ILS main cabinet site. • REMOTE 2 - distant PC terminals connected through a modem. • REMOTE 1 - the PC located at the airport technical maintainance site .
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.8 DME (localizer only) Distance Measurement Equipment DME is connected to the CI1210A connection interface board as illustrated in Figure 3-9. • ACT_DME[P,N] is the positive and negative terminal of the DME active signal from the DME, respectively. • IN_DME[P,N] is the positive and negative terminal of the morse code envelope signal from the DME, respectively.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 ILS CI1210A DME 1 S1 2.7K 2 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 S2 S3 3 S4 IDENT FROM DME 2.7K 4 S5 S6 5 S7 6 S8 P8 HBK770-1 Figure 3-10 DME master connections. If the DME shall be used as ident master, connect as shown in Figure 3-10. In the RMM program, CLR modulation and DME interface dialogue (see Operators Manual), set DME as master and DME active signal to OPEN.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.9 Analog Inputs The analog inputs are connected to the CI1210A connection interface board as illustrated in Figure 3-12. The inputs are: • ANALOG CH.1-3 - three differential DC analog inputs, P is the positive and N is the negative terminal. Maximum voltage: ±15V. Input impedance: 10kohms. • TINDOOR, TOUTDOOR - temperature measurement inputs with interface to an LM35 temperature sensor. Maximum voltage: ±15V.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.10 Digital Inputs and Outputs Eight bidirectional digital channels (numbered 0-7) are sited on the CI1210A connection interface board as illustrated in Figure 3-13. Logic levels: TTL. Input impedance: 560ohms. Suitable female connectors are Weidemüller BLZ-5.08/4 or equivalent. TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 3.11 Battery Warning Two inputs for main power supply failure (backup battery active) are sited on the CI 1210A connection interface board as illustrated in Figure 3-14. See also Figure 3-3. Logic levels: Normally high (5V) ( 0V =battery warning). Input impedance: 10kohms. Suitable female connectors are Weidemüller BLZ-5.08/4 or equivalent . TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 4 Mechanical Installation Marker Beacon This chapter gives a brief instruction on the mechanical installation of the Marker Beacon cabinet and antenna. 4.1 Marker beacon Cabinet The NM7050 cabinet is constructed for mounting on a wall. For easy operation, the keyboard and display section should be in eye/shoulder height (140-160cm).
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5 Electrical installation marker beacon 5.1 Marker beacon cabinet 5.1.1 Connection Overview All electrical connections except the local PC connection, the mains connection and the RF IN and OUT connections are on the CI1376 connection interface board inside the cabinet.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5.2 RF In and Out • The output signal RF OUT is connected to the antenna with N-connectors and 50 Ω coaxial cable. • The input signal RF IN is connected to the antenna probe with N-connectors and 50 Ω coaxial cable . RF OUT RF IN HBK785/1 Figure 5-2 RF cable connection 5.3 Battery The external backup battery is connected between Batt Gnd (-) and Batt +24V (+) on the connector marked Battery on CI 1376.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 TEMP OUTDOOR REMOTE CONTROL LINE CI 1376 AC LEVEL ANA CHA1 ANA CHA2 ANA CHA3 TEMP INDOOR DIG PORT A DIG PORT B DIG PORT C DIG PORT D BATT GND BATT +24V EXT CHARGE BATTERY 1 2 BATT GND BATT +24V 3 EXT CHARGE BATTERY HBK786/1 Figure 5-3 Battery connection EXTERNAL CHARGER MAINS BATT GND BATT +24V AC EXT.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5.4 Mains The mains power cable connections are underneath the cabinet. They are covered by a aluminium plate fastened with four screws. The cable itself is threaded through the cable gland and the three wires are connected to the terminals N, L and GND shown below in Figure 5-5.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5.5 Remote Control cabinet The remote line and remote controis connected to the CI 1376 connection interface board as illustrated in Figure 5-6. • FSK_[A,B] is the modem line pair. • GND is main cabinet ground A suitable female connector for the remote line is Weidemüller BLZ-5.08/4 or equivalent. Alternatively the remote control connection is done with a RS 232 interface, standard pin out 9 pins DSUB.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5.6 PC and Modem Modem connections for remote PC are the standard pin out RS232, 9 pins DSUB connector on the CI1376 connection interface board marked remote-rmm as illustrated in Figure 5-7. For local PC connection use the RS232 on front panel Figure 5-7 .
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5.7 Analogue Inputs The analogue inputs are connected to the CI1376 connection interface board as illustrated in Figure 5-9. The inputs are: • Analogue Channel 1-3 - three differential DC analogue inputs, P (pin-1) is the positive and N (pin-3) is the negative terminal, and pin 2 is GND.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5.8 Digital Inputs and Outputs Eight bi-directional digital channels (numbered 0-7) are sited on the CI1376 connection interface board as illustrated in Figure 5-10. Logical levels: TTL Input impedance: 560Ω. A suitable female connector is Weidemüller BLZ-5.08/4 or equivalent .
,167$//$7,21 &200,66,21,1* +$1'%22.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 6 Remote Control Connections (TWR) 6.1 Remote Master Connection The remote control is connected to the corresponding ILS by connecting the REMOTE CONTROL connector on CI1210 (ILS) or CI1376 (Marker Beacon) to P9 on MB1346 as shown in figure 6-1. Suitable female connectors are Weidemüller BLZ-5.08/4 or equivalent. 600 ohms cable should be used.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 6.2 Power Supply Connection The power supply to the remote control is connected according to Figure 6-2. The battery charger is connected to P2 on the MB1347 - power supply motherboard. Output connector P3 on MB1347 is connected to input connector P4 on MB1346 - remote control motherboard. Several MB1346’s are serial linked by connecting P5 on one board to P4 on the next. Suitable female connectors are Weidemüller BLZ-5.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 6.3 Remote slave connection The remote slave panel SF1344 is connected to the corresponding remote control’s motherboard by connecting P3 on MB1346 to P1 on SF1344. P10 on MB1346 is not used. See Figure 6-3. Suitable connectors are standard 25 pins female DSUB (Harting 0967 025 0442 and 0967 225 4704 or equivalent), connected by a 10 wire 1:1 cable .
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 6.4 Interlock switch connection The interlock switch is either connected to P8 on MB1346 (remote control motherboard) or to P2 on SF1344 (remote slave panel), see Figure 6-4.
SECTION 3 ANTENNA SYSTEMS ADJUSTMENTS PROCEDURE Table of contents 1 NM 3522 6 elements antenna system adjustments - LLZ ..................................... 7 1.1 Mechanical alignment of antenna array ............................................................. 7 1.1.1 Right angle points with reference to runway center line .............................. 7 1.1.2 Spacing distance between LPDA’s .............................................................. 7 1.1.3 Vertical alignment of LPDA support masts .
2.5.1 Mechanical alignment .................................................................................. 21 2.5.2 Final electrical position adjustment.............................................................. 21 2.6 DC-Loop adjustment and testing........................................................................ 21 2.6.1 DC-LOOP adjustment.................................................................................. 21 2.6.2 Antenna fault condition testing..................................
4.4.3 Clearance .................................................................................................... 37 4.5 Near field monitor adjustments........................................................................... 37 4.5.1 Mechanical alignment .................................................................................. 37 4.5.2 Final electrical position adjustment.............................................................. 38 4.6 DC-Loop adjustment and testing........................
7 NM 3544 Sideband reference antenna system adjustment - Glide path............ 53 7.1 Mechanical alignment of mast and antennas ..................................................... 53 7.1.1 Preparation of mechanical- and electrical data............................................ 53 7.1.2 Forward shift (FWD) .................................................................................... 53 7.1.3 Antenna heights..........................................................................................
10 NM 3562 Dual antenna system adjustments - MKR............................................... 71 10.1 Mechanical alignment......................................................................................... 71 10.1.1Antenna mast............................................................................................... 71 10.2 Electrical measurements .................................................................................... 71 10.2.1Antenna cable lengths (Electrical phase equality) .....
1 NM 3522 6 elements antenna system adjustments - LLZ 1.1 Mechanical alignment of antenna array 1.1.1 Right angle points with reference to runway center line The alignment of the antenna array perpendicular to the runway centreline should be carried out to an accuracy of 0.03°. This corresponds to within 4 mm accuracy at positions antenna 1 and antenna 6. A theodolite should be utilised. 1.1.
. VECTOR VOLTMETER A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB DIR. COUPL. OPEN END Figure 1-1 Cable phasing measurements set-up. 1.2.2 CSB/SBO phasing 127( $VFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG Connect the NM3710 Field Test Set to the monitor BNC test connector in the ADU. (Use 20..30 dB attenuator at the I/P of the Field Test Set.) Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0.0% DDM reading.
Connect the antenna cables A1 and A6 to the ADU outputs labelled A1 and A6 respectively. Connect all other ADU outputs to dummy load. Use the NM3710 with portable test antenna. On the the runway establish a point officially marked as the centre line for DDM measurements. Ascertain that the measurement point is not affected by reflected signals degrading the direct received signals from the antenna pairs.
Example 1: Item 1: A1/A12: +4.3% DDM Item 3: A1+MF/A12: -2.0% DDM (MF in A1) 9° ⋅ 4.3 ϕ = --------------------- = 4.8° 4.3 + 2.0 Example 2: Item 1: A6/A7: -0.6% DDM Item 3: A6 /A7+MF: +1.86% DDM (MF in A7) 9° ⋅ 0.6 ϕ = ------------------------ = 1.7° 0.6 + 1.86 Cable trimming length: 6.2 mm/°. 1.2.5 Phase and amplitude transfer measurement Connect each antenna cable and monitor cable to LPDA load and source respectively.
Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the LPDA monitor circuit or connector/cable. Record the final result in Ground Commissioning Record. 1.2.6 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 1-3. Measure return loss for each LPDA. Measure and record in Ground Commissioning Record the return loss value for each LPDA including antenna cable. Tolerance: 20 dB minimum .
1.3.1 DDM check of ADU O/P (output port) At each antenna feed output of the ADU the measured DDM is a result of the SBO/CSB ratio according to the formula 2 ⋅ SBO DDM = ------------------- COSγ CSB %DDM µA %SDM A2 -34.8 -337 40.0 A3 -32.7 -316 40.0 where CSB is a fixed value. SBO is adjustable by the SBO attenuator in the cabinet. γ is 0° when the 90°-stub is inserted into the SBO.
Move the directional coupler to A4 and compare readings with calculated value. If measured DDM is lower than the calculated values for A4 then increase the SBO power, or vice versa, until a fairly good matching set of values are obtained. Adjust the SBO attenuator for the other Tx to the same setting. Remove the 90°-stub 1.3.2 DDM field check Set the localizer to normal radiation. From the centreline of the opposite threshold determine points perpendicular to the CL 105 meter to both sides of the runway.
1.6 DC-Loop adjustment and testing 1.6.1 DC-LOOP adjustment The DC loop (cable fault monitor) alignment is carried out accordingly to the procedure described in Monitor Alignment and Calibration chapter. 1.6.2 Antenna fault condition testing For this test observe that the LLZ cabinet System Status indicates ALARM. The transmitter must be on during this test.The monitors should be in MANUAL mode in order to prevent transmitter from being shut off during the test.
2 NM 3523B 12 Elements antenna system adjustments - LLZ (Single frequency) 2.1 Mechanical alignments of antenna array 2.1.1 Right angle points with reference to runway centre line The alignment of the antenna array perpendicular to the runway centreline should be carried out to an accuracy of 0.02°. This corresponds to within 5 mm accuracy at positions antenna 1 and antenna 12. A theodolite should be utilised. 2.1.
. VECTOR A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB DIR. COUPL. OPEN END Figure 2-1 Cable phasing measurement set-up. 2.2.2 CSB/SBO phasing 127( $VFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG Connect the NM3710 Field Test Set to the monitor BNC test connector in the ADU. (Use 20..30 dB attenuator at the I/P of the Field Test Set.) Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0.0% DDM reading. Repeat the phasing procedure for the other transmitter. 2.
Connect all other ADU outputs to dummy load. Use the NM3710 with portable test antenna. On the the runway establish a point officially marked as the centre line for DDM measurements. Ascertain that the measurement point is not affected by reflected signals upsetting the direct received signals from the antenna pairs. This can be tested by moving the test antenna a few meters back and fourth while observing the DDM reading. If the value is not changing then the measurement position is OK.
9° ⋅ 4.3 ϕ = --------------------- = 4.8° 4.3 + 2.0 Example 2: Item 1: A6/A7: -0.6% DDM Item 3: A6 /A7+MF: +1.86% DDM (MF in A7) 9° ⋅ 0.6 ϕ = ------------------------ = 1.7° 0.6 + 1.86 Cable trimming length: 6.2 mm/°. 2.2.5 Phase and amplitude transfer measurement Connect each antenna cable and monitor cable to LPDA load and source respectively. Utilise a vector voltmeter or network analyser in a test set-up Figure 2-2 VECTOR VOLTMETER A B M(n) LPDA From cabinet CSB BNC o/p 20dB A(n) DIR. COUPL.
Measure and record in Ground Commissioning Record the return loss value for each LPDA including antenna cable. Tolerance: 20 dB minimum. VECTOR VOLTMETER A B From cabinet CSB BNC o/p Antenna cable under test 20dB DIR. COUPL. Antenna Figure 2-3 Antenna return loss measurement set-up. 2.3 Course sector adjustment The required course sector width (CS) can be pre-adjusted by two methods: 1. DDM measurement of ADU antenna feed outputs. 2. DDM field check.
For CS = 4°: % DDM µA %SDM A2 -34.8 -337 40.0 A3 -32.7 -316 40.0 A5 -28.1 -272 40.0 A6 -30.4 -294 40.0 For other CS values use the formula: DDM ( 4° ) ⋅ 4° DDM A ( n ) = --------------------------------CS EXAMPLE A5 DDM for CS = 5°: – 28.1 ⋅ 4 DM A3 = --------------------- = – 22.5% 5 PROCEDURE Insert the 90°-stub into the SBO path. Connect a directional coupler with 50Ω load to antenna O/P A3.
2.4 Monitor combining unit (MCU) adjustments 2.4.1 Course Line Connect the Field Test Set to the CL output connector of the MCU. Adjust the CL line stretcher to obtain 0.0% DDM. 2.4.2 Course Sector Connect the Field Test Set to the CS output of the MCU. Adjust the CS line stretcher to obtain a reading of 15.5% DDM. 2.
3 NM 3524 12 Elements antenna system adjustments - LLZ (Dual frequency) 3.1 Mechanical alignment of antenna array 3.1.1 Right angle points with reference to runway centre line The alignment of the antenna array perpendicular to the runway centreline should be carried out to an accuracy of 0.02°. This corresponds to within 4 mm accuracy at positions antenna 1 and antenna 12. A theodolite should be utilised. 3.1.2 Spacing distance between LPDA’s Check that the spacing between each LPDA is 2.04 m.
. VECTOR A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB OPEN END DIR. COUPL. Figure 3-1 Cable phasing measurement set-up. 3.2.2 CSB/SBO phasing 127( 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU $VFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG Connect the NM3710 Field Test Set to the monitor BNC test connector in the ADU. (Use 20..30 dB attenuator at the I/P of the Field Test Set.) Adjust Course SBO phaser in the Cabinet (associated with Tx to air) to obtain 0.0% DDM reading.
3.2.4 Antenna pair phasing 127( %HIRUH WKH DQWHQQD SDLU SKDVLQJ SURFHGXUH LV FRPPHQFHG DVFHUWDLQ WKDW WKH 7; PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU Connect the antenna cables A1 and A12 to the ADU outputs labelled A1 and A12 respectively. Connect all other ADU outputs to dummy load. Use the NM3710 with portable test antenna. On the the runway establish a point officially marked as the centre line for DDM measurements.
Calculate the corresponding phase error (electrical degrees) from the formula 9° DDM 1 ϕ ( ° ) = ------------------------------------------DDM 1 + DDM 3 : DDM (%) measured in item 1. : DDM (%) measured in item 3. (Example values from NM3523B) Example 1: Item 1: A1/A12: +4.3% DDM Item 3: A1+MF/A12: -2.0% DDM (MF in A1) 9° ⋅ 4.3 ϕ = --------------------- = 4.8° 4.3 + 2.0 Example 2: Item 1: A6/A7: -0.6% DDM Item 3: A6 /A7+MF: +1.86% DDM (MF in A7) 9° ⋅ 0.6 ϕ = ------------------------ = 1.7° 0.6 + 1.86 3.2.
Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±2°. Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the LPDA monitor circuit or connector/cable. Record the final result in Ground Commissioning Record. 3.2.6 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 3-3. Measure return loss for each LPDA.
3.3.1 DDM check of ADU O/P At each antenna feed output of the ADU the measured DDM is a result of the SBO/CSB ratio according to the formula where CSB is a fixed value. SBO is adjustable by the SBO attenuator in the cabinet. γ is 0° when the 90°-stub is inserted into the SBO. For each course sector width (CS) of the array a set of corresponding DDM values exists unique for each antenna O/P. For CS = 4°: % DDM µA %SDM A3 -40.0 -387 53.8 A4 -38.3 -371 40.0 A5 -22.9 -222 40.
Adjust the SBO attenuator for the other Tx to the same setting. Remove the 90°-stub. 3.3.2 Clearance SBO power Switch off the course transmitter. Insert the 90°-stub in the CLR SBO path. Connect the Field Test Set to the BNC test connector (antenna 7 sample) in the ADU. (Use 20...30 dB attenuator at the Field Test Set I/P). Switch on the clearance transmitter. Adjust the CLR SBO attenuator in the cabinet (associated with Tx to air) until a reading of 36% DDM is obtained.
3.5.1 Mechanical alignment Align the near field (NF) monitor antenna mechanically in the extended runway centreline position. 3.5.2 Final electrical position adjustment Connect the Field Test Set to the NF monitor cable. The reading should be 0.0% DDM if the antenna is aligned correctly and no reflections appear. Otherwise, a small mechanical re-positioning of the antenna may be necessary in order to obtain 0.0% DDM. 3.6 DC-Loop adjustment and testing 3.6.
4 NM 3525 24 Elements antenna system adjustments - LLZ 4.1 Mechanical alignments of antenna array 4.1.1 Right angle points with reference to runway centre line The alignment of the antenna array perpendicular to the runway centreline should be carried out to an accuracy of 0.01°. This corresponds to within 5 mm accuracy at positions antenna 1 and antenna 24. A theodolite should be utilised. 4.1.2 Spacing distance between LPDA’s Check that the spacing between each LPDA is 2.04 m. Tolerance: ±5 mm. 4.
. VECTOR VOLTMETER A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB DIR. COUPL. OPEN END Figure 4-1 Cable phasing measurement set-up. 4.2.2 CSB/SBO phasing 127( 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU $VFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG Connect the NM3710 Field Test Set to the monitor BNC test connector in the ADU. (Use 20..30 dB attenuator at the I/P of the Field Test Set.) Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0.0% DDM reading.
4.2.4 Antenna pair phasing 127( %HIRUH WKH DQWHQQD SDLU SKDVLQJ SURFHGXUH LV FRPPHQFHG DVFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU Connect the antenna cables A1 and A24 to the ADU outputs labelled A1 and A24 respectively. Connect all other ADU outputs to dummy load. Use the NM3710 with portable test antenna. On the the runway establish a point officially marked as the centre line for DDM measurements.
Pair µA DDM (6°) % DDM (6°) A1/A24 20.1 2.08 A2/A23 18.5 1.91 A3/A22 16.8 1.74 A4/A21 14.9 1.54 A5/A20 13.2 1.36 A6/A19 11.4 1.18 A7/A18 9.7 1.00 A8/A17 7.9 0.82 A9/A16 6.2 0.64 A10/A15 4.4 0.45 A11/A14 2.6 0.27 A12/A13 0.9 0.09 Cable trimming length: 6.2 mm/°. 4.2.5 Phase and amplitude transfer measurement Connect each antenna cable and monitor cable to LPDA load and source respectively. Utilise a vector voltmeter or network analyser in a test set-up Figure 4-2 .
Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±2°. Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the LPDA monitor circuit or connector/cable. Record the final result in Ground Commissioning Record. 4.2.6 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 4.3. Measure return loss for each LPDA.
2 ⋅ SBO DDM = ------------------- COSγ CSB where CSB is a fixed value. SBO is adjustable by the SBO attenuator in the cabinet. γ is 0° when the 90°-stub is inserted into the SBO. For each course sector width (CS) of the array a set of corresponding DDM values exists unique for each antenna O/P. For CS = 4°: A3 -33.0% DDM A4 -29.3% DDM A5 -26.0% DDM For other CS values use the formula: DDM ( 4° ) ⋅ 4° DDM A ( n ) = --------------------------------CS Example A3 DDM for CS = 3.5°: – 33.
4.3.2 Clearance SBO power Switch off the course transmitter. Insert the 90°-stub in the CLR SBO path. Connect the Field Test Set to the BNC test connector TEST 1 (antenna 13 sample) in the ADU. (Use 20...30 dB attenuator at the Field Test Set I/P). Switch on the clearance transmitter. Adjust the CLR SBO attenuator in the cabinet (associated with Tx to air) until a reading of 36% DDM is obtained. Carry out the same procedure for the other transmitter. 4.3.
4.5.2 Final electrical position adjustment Connect the Field Test Set to the NF monitor cable. The reading should be 0.0% DDM if the antenna is aligned correctly and no reflections appear. Otherwise, a small mechanical re-positioning of the antenna may be necessary in order to obtain 0.0% DDM. 4.6 DC-Loop adjustment and testing 4.6.1 DC-LOOP adjustment The DC loop (cable fault monitor) alignment is carried out accordingly to the procedure described in Monitor Alignment and Calibration chapter. 4.6.
5 NM 3526 16 Elements antenna system adjustments - LLZ 5.1 Mechanical alignments of antenna array 5.1.1 Right angle points with reference to runway centre line The alignment of the antenna array perpendicular to the runway centreline should be carried out to an accuracy of 0.01°. This corresponds to within 4 mm accuracy at positions antenna 1 and antenna 16. A theodolite should be utilised. 5.1.
. VECTOR A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB DIR. COUPL. OPEN END Figure 5-1 Cable phasing measurement set-up. 5.2.2 CSB/SBO phasing 127( 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU $VFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG Connect the NM3710 Field Test Set to the monitor BNC test connector in the ADU. (Use 20..30 dB attenuator at the I/P of the Field Test Set.) Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0.0% DDM reading.
5.2.4 Antenna pair phasing 127( %HIRUH WKH DQWHQQD SDLU SKDVLQJ SURFHGXUH LV FRPPHQFHG DVFHUWDLQ WKDW WKH 7[ PRGXODWRU XVHG LV RSWLPDOO\ FDOLEUDWHG 6ZLWFK RII WKH FOHDUDQFH WUDQVPLWWHU Connect the antenna cables A1 and A16 to the ADU outputs labelled A1 and A16 respectively. Connect all other ADU outputs to dummy load. Use the NM3710 with portable test antenna. On the the runway establish a point officially marked as the centre line for DDM measurements.
The sensitivity of DDM versus electrical phase error can be estimated using the following procedure: 1. Note the DDM value reported by the operator at the Field Test Set for the antenna pair under test. 2. a) If the DDM value is positive (150 Hz dominance), insert a male-female (MF) N-adaptor (-9°) in the antenna left side seen forward toward the Field test set.
. VECTOR VOLTMETER A B M(n) Ant. From cabinet CSB BNC o/p 20dB A(n) DIR. COUPL. Figure 5-2 Phase and amplitude transfer measurement set-up. Measure relative transfer phase and amplitude for each Antenna/Monitor return cable in reference to A1/M1. Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±2°. Amplitude tolerance: ±1.0 dB.
5.3 Course sector width adjustment The required course sector width (CS) can be pre-adjusted by two methods: 1. DDM measurement of ADU antenna feed outputs. 2. DDM field check. Preferably both methods should be carried out and compared. 5.3.1 DDM check of ADU O/P At each antenna feed output of the ADU the measured DDM is a result of the SBO/CSB ratio according to the formula 2 ⋅ SBO DDM = ------------------- COSγ CSB where CSB is a fixed value. SBO is adjustable by the SBO attenuator in the cabinet.
Connect the NM3710 (use 20 dB attenuator at NM3710 I/P) to the directional coupler’s forward port. Adjust the SBO attenuator (for the Tx to air) until the DDM value equals the previously calculated value for the CS. Move the directional coupler to A4, A5 and compare readings with calculated values. If measured DDM is lower than the calculated values for A4, A5 then increase the SBO power, or vice versa, until a fairly good matching set of values are obtained.
5.4.3 Clearance Connect the Field Test Set to the CLR output connector of the MCU and use the acual DDM as standard signal to the monitors. 5.5 Near field monitor adjustments The exact position of the near field monitor antenna cannot be determined until after the flight check is completed, due to possible mechanical re-alignment of the antenna array. 5.5.1 Mechanical alignment Align the near field (NF) monitor antenna mechanically in the extended runway centreline position. 5.5.
6 NM 3543 Null reference antenna system adjustments - Glide path 6.1 Mechanical alignment of mast and antennas 6.1.1 Preparation of mechanical- and electrical data A ground level plot made with theodolite should be available. From this plot Forward slope (FSL) and Sideway slope (SSL) can be calculated. FSL is defined negative for falling forward slope seen from the GP mast. SSL is defined positive for rising side slope seen from the GP mast toward the runway.
Measure return phase for the upper antenna cable (A2). Then take into account the phase centres of the Antenna given in the factory data sheet. Determine if one of the cables should be trimmed in order to comply with phase equality tolerance for the set of antennas. Tolerance: ±1.0° true electrical cable length including Antenna phase centre deviation. (if available) See measurement set-up diagram Figure 6-1 VECTOR A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB OPEN END DIR. COUPL.
Measure and record phase/amplitude for upper antenna transfer signals. Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±1°. Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the Antenna monitor circuit or connector/cable. Record final result in Ground Commissioning Records. 6.2.4 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 6-3.
The hybrid port 4 is terminated in 50Ω, min. 5 watts dummy load. Port 2 is connected to a directional coupler which is terminated in 50Ω, min. 5 watts dummy load. The directional coupler forward port is connected to NM3710 Field Test Set. Use 20 dB attenuator at the BNC I/P of NM3710. The NM3710 DDM should be 0.0%. If necessary adjust the SBO phaser of associated transmitter in the Cabinet to 0.0% DDM. Carry out the same procedure for the other transmitter. 6.3.
6.4 Monitoring combining unit (MCU) adjustments 6.4.1 Procedure Insert the 90°/stub in the SBO output of the NM3531 Cabinet. Connect the Field Test Set to the CL output of the MCU. Check that the reading is 0% ±0.5% DDM. Remove the 90°-stub from the SBO path. Connect the Field Test Set to the DS output of the MCU. Adjust the MCU attenuator at A2 to obtain 17.5% DDM. 6.5 Location of near field antenna position According to site data (slope, etc.
7 NM 3544 Sideband reference antenna system adjustment - Glide path 7.1 Mechanical alignment of mast and antennas 7.1.1 Preparation of mechanical- and electrical data A ground level plot made with theodolite should be available. From this plot Forward slope (FSL) and Sideway slope (SSL) can be calculated. FSL is defined negative for falling forward slope seen from the GP mast. SSL is defined positive for rising side slope seen from the GP mast toward the runway.
Measure return phase for the upper antenna cable (A2). Then take into account the phase centres of the Antenna given in the factory data sheet. Determine if one of the cables should be trimmed in order to comply with phase equality tolerance for the set of antennas. Tolerance: ±1.0° true electrical cable length including Antenna phase centre deviation. (if available) See measurement set-up diagram Figure 7-1 below : VECTOR A B From cabinet CSB BNC o/p CABLE UNDER TEST 20dB OPEN END DIR. COUPL.
Measure and record phase/amplitude for upper antenna transfer signals. Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±1°. Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the Antenna monitor circuit or connector/cable. Record final result in Ground Commissioning Record. 7.2.4 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 7-3.
7.3.2 CSB/SBO phasing Insert the 90°-stub in the SBO cable path to the ADU. Connect the NM3710 Field Test Set to the monitor return cable (M1) from the lower antenna. Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0 DDM reading. Repeat the phasing procedure for the second transmitter. Remove the 90°-stub from the SBO path. 7.4 Sector width adjustment 7.4.1 SBO power adjustment Connect the Field Test Set to the monitor return cable (M1) from the lower antenna.
FSL (°) K3 (mm) K4 (mm) DS DDM (%) 1.0 -27 -18 10.3 0.9 -23 -15 10.1 0.8 -19 -13 9.9 0.7 -16 -11 9.7 0.6 -13 -9 9.5 0.5 -11 -7 9.4 0.4 -8 -5 9.3 0.3 -6 -4 9.2 0.2 -4 -3 9.0 0.1 -2 -2 8.9 0.0 0 0 8.75 -0.1 2 1 8.6 -0.2 3 2 8.5 -0.3 5 3 8.4 -0.4 6 4 8.3 -0.5 8 5 8.2 -0.6 9 6 8.1 -0.7 10 7 8.0 -0.8 11 7 7.9 -0.9 12 8 7.8 -1.0 13 9 7.8 FSL (+) : Upsloping terrain. (-) mm means shorter cable.
Theoretically, DDM should be close to -0.9% DDM (90) as a minimum value due to path loss differences between antennas seen from the NF antenna. 7.6.1 Near Field Monitor Position Search A de-phasing test procedure of upper antenna (A2) can be carried out in order to search for the optimum monitor position. An "elbow" type N-adapter (-21°) is inserted in the lower antenna feed (A1). This is equivalent to advance (+) phase of the upper antenna.
7.7 Antenna distribution unit (ADU) phase and amplitude check 7KLV FKHFN LV RSWLRQDO 7.7.1 Preparation Utilise a vector voltmeter in a test set-up Figure 7-4 . VECTOR VOLTMETER A B From cabinet CSB BNC o/p U 20dB SBO DIR. COUPL. ADU 50Ω CSB L Figure 7-4 Test set-up for ADU Phase and Amplitude check. Connect CSB and SBO outputs from Cabinet to dummy loads. Terminate the disconnected cables from ADU to dummy loads. Switch off the modulation to the transmitter used for the test.
vector voltmeter to 0° reference phase. Move the B-probe to U O/P. If necessary adjust SBO U/L phaser (PH2) to obtain 180° reading at the U O/P. 127( ,I 3+ KDV EHHQ DGMXVWHG UHFKHFN WKH UHIHUHQFH SKDVH IURP / 2 3 DQG PHDVXUH DJDLQ WKH 8 SKDVH 5HSHDW XQWLO SKDVH GLIIHUHQFH LV DFKLHYHG End of check.
8 NM 3545 M-Array antenna system adjustments - Glide path 8.1 Mechanical alignment of mast and antennas 8.1.1 Preparation of mechanical- and electrical data A ground level plot made with theodolite should be available. From this plot Forward slope (FSL) and Sideway slope (SSL) can be calculated. FSL is defined negative for falling forward slope seen from the GP mast. SSL is defined positive for rising side slope seen from the GP mast toward the runway.
Measure return phase for the middle antenna cable (A2) and upper antenna cable (A3). Then take into account the phase centres of the Antennas given in the factory data sheet. Determine if one of the cables should be trimmed in order to comply with phase equality tolerance for the set of antennas. Tolerance: ±1.0° true electrical cable length including Antenna phase centre deviation.
Measure and record phase/amplitude for upper antenna transfer signals. Then determine if one of the monitor cables must be trimmed in order to comply with phase tolerance for the set of cables. Tolerance: ±1°. Amplitude tolerance: ±1.0 dB. If the amplitude tolerance is exceeded something might be wrong in the Antenna monitor circuit or connector/cable. Record final result in Ground Commissioning Records. 8.2.4 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up Figure 8-3.
the monitor return cable (M1) from the lower antenna. Adjust SBO phaser in the Cabinet (associated with Tx to air) to obtain 0 DDM reading. Repeat the phasing procedure for the second transmitter. Remove the 90°-stub from the SBO path. 8.4 Sector width adjustment 8.4.1 SBO power adjustment Connect the Field Test Set to the monitor return cable (M1) from the lower antenna. Adjust the SBO step attenuator in the cabinet (associated with Tx to air) to obtain the prescribed DDM value.
8.5.1 Adjustments procedure The Clearance transmitter shall be switched off during steps a) through e) below. 1. Connect the Field Test Set to the CL output of the MCU. Insert the 90° stub in the SBO output of the Transmitter Cabinet. In the Antenna Distribution Unit (ADU), disconnect SBO to Lower antenna by using the SBO-L link. Terminate open ends. Adjust Upper antenna phaser PH1 in MCU to give 0% DDM. 2. Reconnect SBO to Lower antenna. Remove the 90° stub.
127( 7KH YDOXHV DW WKH 1) SRVLWLRQ DUH QRUPDOLVHG L H ''0 ZLWK QR $ GHSKDVLQJ In order to look for the optimal distance between the GP mast and the NF antenna carry out the following test: Measure DDM at positions +1 m and -1 m of original position. Then compare the results with the theoretical values for these offsets from the nominal 360° position, as denoted below: Dephasing NF 1 m forward NF 1 m backward 27° retard -16µA/-1.9% DDM -9µA/-1.1% DDM 27° advance -5µA/-0.6% DDM -12µA/-1.
The clearance transmitter shall be switched off. Switch off the modulation to the transmitter used for the test. Insert a 20 dB attenuator at the input port of the directional coupler. Connect a test cable from the Cabinet’s CSB BNC connector to the 20 dB attenuator. Connect the vector voltmeter A-probe to the directional coupler’s forward output. 8.7.2 Procedure 1. Connect the cable TEST SIG (throughput from the directional coupler) to the ADU CSB input. Connect the B-probe to L output.
6. Connect the cable TEST SIG to the SBO input. If necessary adjust SBO U/L phaser (PH2) to obtain 180° reading at the L output. 7. Connect the B-probe to U output. If necessary adjust UPPER ANT phaser (PH3) to obtain 180°. (same phase as in f).
9 NM 3561 Single antenna system adjustments - MKR 9.1 Mechanical alignment 9.1.1 Antenna mast Utilise a waterlevel and align the mast vertically by adjustments of the base nuts. 9.2 Electrical measurements 9.2.1 Antenna return loss Utilise a vector voltmeter or network analyser in a test set-up. Measure return loss for the LPDA. Measure the return loss value for the LPDA including antenna cable. Tolerance: 22 dB minimum . VECTOR VOLTMETER A From Marker Dir.
10 NM 3562 Dual antenna system adjustments - MKR 10.1 Mechanical alignment 10.1.1 Antenna mast Utilise a waterlevel and align the mast vertically by adjustments of the base nuts. 10.2 Electrical measurements :$51,1* ,I WKH DWWHQXDWRU PRGXOH LQ WKH 0DUNHU XQLW LV FRQILJXUHG IRU G% WKHQ WKH 5) RXWSXW SRZHU LV LQ WKH UDQJH RI ZDWWV 7DNH FDUH RI QRW WR RYHUORDG WKH YHFWRU YROWPHWHU Connect a directional coupler terminated in 50* 10W to the N output connector of the Marker.
10.2.2 Monitor return cable length Measure return phase as described in (8.2.1) for both monitor cables. Check that initial values are within ±1.5° true phase (±3.0° return phase). 10.2.3 Phase and amplitude transfer measurement Connect each antenna cable and monitor cable to LPDA load and source respectively. Utilise a vector voltmeter or network analyser in a test set-up Figure 10-2, and measure relative transfer phase and amplitude for the antenna cable (A2) in reference to antenna (A1) .
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 SECTION 4 TEST AND ADJUSTEMENTS Table of Contents 1 Tests and adjustments LLZ/GP ............................................................................... 3 1.1 Configuration Settings ........................................................................................ 3 1.1.1 ILS Configuration ......................................................................................... 3 1.1.
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1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1 Tests and adjustments LLZ/GP 1.1 Configuration Settings Follow this procedure to set the configurations in the ILS according to the desired system configuration. 1.1.1 ILS Configuration Set the correct configuration for this ILS according to this table. The Station Control strap platform is located on TCA 1218.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1 2 3 4 5 6 7 8 9 HBK592-1 10 Figure 1-1 Station Control strap platform. 1.1.2 Remote Ports Access Level Configuration The allowed access levels on REMOTE ports 1 and 2 on the RMS can be configured by setting jumpers on the TCA1218A. Set jumpers in S1 - S4 to configure which access levels that are allowed on remote ports 1 and 2. Jumper in means that access level is allowed. Jumper out means that access level is denied.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 Carry out the alignment steps in the order outlined below: 1.2.1 RF Phase Feedback Adjustment 1.2.2 RF Power 1.2.3 LF Phase Adjustment 1.2.4 RF Power Balance Adjustment 1.2.5 RF Phase at Combiner I/P 1.2.6 SDM Calibration 1.2.7 DDM Calibration 1.2.7.1 TEST DDM Setting 1.2.8 Ident Tone Modulation Depth 1.2.9 RF Frequency Adjustment 127( ,I VRPH RI WKH IXQFWLRQV SDUDPHWHUV GHSDUW FRQVLGHUDEO\ IURP QRUPDO WKHQ
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1.2.2 RF Power The CSB and corresponding SBO output power can be adjusted by means of the RMM Program or the Local Display/Keyboard. Normal operating power level is: LLZ Course 15 W CSB LLZ Clearance 15 W CSB GP Course 5 W CSB GP Clearance 0.5 W CSB The output power can be read by means of the RMM Program or the Local Display/Keyboard. 1.2.3 LF Phase Adjustment 1.2.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 By means of the RMM turn on 90 Hz modulation for both Course Tx and Clearance Tx. Adjust 90 Hz COU phase adj. R1 (LF1223A) observing oscillocope channel A until the waveform equals left hand graph in Figure 1-2. Adjust 90 Hz CLR phase adj. R179 (LF1223A) observing oscillocope channel B until the waveform equals left hand graph in Figure 1-2.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 '(02'8/$7(' 6%2 1250$/ '(02'8/$7(' 6%2 '% 32:(5 ,0%$/ $1&( += += Figure 1-4 Power balance SBO illustration. Perfect power balance between the 90 Hz modulated carrier and the 150 Hz modulated carrier is indicated when the two largest sets of peak waveforms fall on lines paralell to the baseline.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 The RF phase (90° start phase) can be adjusted by trimmer RF PHASE on the back of the LPA/GPA. Adjust until the minima points between the smallest peak waveform reach the baseline or a minimum. 1.2.6 SDM Calibration Connect the NM 3710 Field Test Set to the CSB BNC test connector in the Cabinet's Changeover section. (Insert a 20 dB attenuator at the input of the Field Test Set in order to avoid overloading).
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1.2.8 Ident Tone Modulation Depth Connect the Field Test Set to the CSB BNC test connector in the Cabinet’s Change-over section. (Insert a 20 dB attenuator at the input of the Field Test Set in order to avoid overloading). Set the Ident Control to CONTINUOUS from the RMM Program or the Local Display/Keyboard. On the Field Test Set, press IDENT.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 For details, refer to the adjustment procedure for each antenna system. 1.4 Monitor Alignment and Calibration. TEST EQUIPMENT REQUIRED: • Oscilloscope, general purpose • NM 3710 Field Test Set (with 20 dB attenuator) • BNC Test Cable • Digital Voltmeter, 4 digits, DC 1.4.1 General: Description is given only for the DS channels.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Adjust the jumper settings in P2++ and potmeters R338++ until the voltage is 240mV at TP23++ . Figure 1-7 Alternative jumper settings of P2++. Turn off the equipment and remove the extender card. Set the MF12xx in its correct position. Turn on the transmitters. Adjust the RF level potensiometer on the front of MF12xx until the monitor gives a RF level reading of 3.0V. Repeat above for all monitor channels. 1.4.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1.5 Monitor Alarm Setting Procedure Type in the wanted alarm limits from the RMM Program or the Local Display/Keyboard. The monitors will have preset alarm limits when the ILS is delivered for factory.These alarm limits are as listed in the table below: Table 1-3 Localizer alarm limits .
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Table 1-4 Glidepath alarm limits . CAT I GP CAT II CAT III CL DS NF CLR DDM see annex. 10 37uA 18.5uA 35uA 45uA SDM +/- 5% --- --- +/- 5% RF level +/3dB*) --- --- +/- 1dB DDM see annex. 10 37uA 18.5uA 35uA SDM +/- 5% --- --- +/- 5% RF level +/3dB*) --- --- +/- 1dB DDM see annex.
1DYLD $YLDWLRQ $6 HBK698-2 DS AGC time constant adj. DS RF level adj. DS SDM adj. CLR AGC time constant adj. CLR RF level adj. CLR SDM adj. CL AGC time constant adj. CL RF level adj. MF 1211A Mon.2 STBY MAINT IDENT BATT DISAGR PARAM Mon.stby.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 TEMP INDOOR TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.3 DIGITAL PORT A DIGITAL PORT B DIGITAL PORT C DIGITAL PORT D TO MB1203 Battery protection level adj. RS232 RS232 RS232 BATTERY WARNING REMOTE CONTROL DC-LOOP DC-LOOP DME CI1210A LOCAL REMOTE 2 REMOTE 1 CH.1&2 CH.3&4 HBK697-1 Figure 1-9 CI1210A Connection Interface adjustment point.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 RF phase adj. DC offset adj. RF balance adj. 90Hz mod. adj. 150 Hz mod. adj. OSC. CSB SBO FREMDRIFT RF.PHASE Phase feedback offset adj. DC RF-BAL G90Hz G150Hz PH.OFFS. HBK696-1 Figure 1-10 Power Amplifier Assembly adjustment points (rear view).
,167$//$7,21 &200,66,21,1* +$1'%22.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2 Tests and adjustments marker beacon 2.1 2.1.1 Preparations Terminate the RF OUT terminal with a 50Ω load (antenna or dummy). The transmitters are factory adjusted to 2 watt output power. Let both transmitters run for ½ hour at this power to achieve a stable working temperature before any fine tuning is carried out. 2.1.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Set the configuration for the MB according to Table 2-1 .
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 Strap Function when strap is in S1 Beacon is INNER marker S2 Beacon is MIDDLE marker S3 Beacon is OUTER marker S4 Beacon is FAN marker Table 2-2 Marker function configuration Figure 2-2 shows where the straps are located on the transmitter board(s) .
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 2.2 Adjustment points The adjustment points are shown in Figure 2-3 Adjustment points and explained below. The figure shows a fully equipped system, NM 7050D, see Section 3 for configuration details: 1. Battery charging voltage (nom 27.4V@20°C) 2. Bias for power transistor (use factory settings) 3. Battery protection cut-off voltage (nom. 22V) 4. Tx Detected Rf level (nom. 2.5V@4W carrier) 5. Monitor RF level (nom.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3 2 1 I S T A A N T T 7 4 Shield box Oscillator 6 HBK864/1 5 Figure 2-3 Adjustment points 2.3 Adjustments at installation These procedures have to be carried out at installation in order to set up your equipment right. 2.3.1 Transmitter output power adjustment This adjustment is most easily done with the RMM PC program but the local keyboard/display may be used.
,167$//$7,21 &200,66,21,1* +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 • Check that you read the desired modulation depth in Maintenance. • Set TX2 to air and repeat the two previous steps. 2.3.2 Monitor calibration The software adjustments are most easily done with the RMM program, but may be carried out from the front panel. • This procedure requires that the output power is already adjusted • Set the input attenuation straps on MO1374 according to the marker type.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 • If not, adjust the Carrier Power potentiometer on TX1 until the parameter shows 2.00W • Repeat for 1W and 0.5W • Repeat for TX2. ⇒Inner Marker uses an external 10 dB attenuator, use 0.2W, 0.1W and 50mW to calibrate. Carrier Power is measured prior to the attenuator, but the software will automatically compensate for the 10dB. 2.4.
,167$//$7,21 &200,66,21,1* +$1'%22.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. , 1 6758 0( 17 /$1 ' , 1 * 6<67 ( 0 SECTION 5 GROUND COMMISIONING REFERANCE DOCUMENTS Table of Contents NM7000 LOCALIZER...........................................................................................2 NM7000 GLIDE PATH .........................................................................................11 NM7050 MARKER BEACON ...............................................................................
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GROUND COMMISSIONING DOCUMENT NM7000 LOCALIZER Airport Runway Cabinet Serial no. Antenna system Antenna Distribution Unit (ADU) Serial no. Monitor Distribution Unit (MCU) Serial no. Place: Date: Navia Aviation representative (Sign.) 1DYLD $YLDWLRQ $6 Customer representative (Sign.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GENERAL The purpose of this document is to • Ensure that all operating functions are working before the equipment is put into service. • Establish useful reference data and settings for comparisons to routine maintenance data and trouble shooting.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2.1 - 2.2 Connect the NM3710 to the monitor input CL cable (from MCU). Use keypad CHANGE OVER to activate the second transmitter. Read DDM and SDM. 2.3 - 2.4 Connect the NM3710 to the monitor input DS cable (from MCU). Use keypad CHANGE OVER to activate the second transmitter. Read DDM and SDM. 2.5 - 2.6 Connect the NM3710 to the monitor input NF cable (from NF antenna). Use keypad CHANGE OVER to activate the second transmitter.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 11.0 Make a file copy to diskette of the NM70xx ILS Configuration file.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1.0 Recordings from test connectors on the Cabinet: COURSE TRANSMITTERS ITEM PARAMETER LIMITS Tx 1 Tx 2 1.1 CSB DDM -0.1...+0.1% % % 1.2 CSB SDM 39.5...40.5% % % 1.3 CARRIER FREQ. F ± 2.2 kHz MHz MHz 1.4 MOD 90Hz 89.9...90.1 Hz Hz Hz 1.5 MOD 150 Hz 149.9...150.1 Hz Hz Hz 1.6 IDENT 1020 Hz 1010...1030 Hz Hz Hz 1.7 IDENT MOD 9...
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.0 Transmitter waveforms test point checks (BNC test points): ITEM PARAMETER 3.1 CSB LF 3.2 SBO LF 3.3 PHASE CORR 4.0 COU Tx 1 COU Tx 2 CLR Tx 1 CLR Tx 2 Attenuators and Phaser settings in the Cabinet, Antenna Distribution Unit (ADU) and Monitor combining unit (MCU). Cabinet: ITEM PARAMETER Tx1 Tx2 4.1 COU SBO-attenuator Normal dB dB 4.2 COU SBO-attenuator Wide Alarm dB dB 4.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5.0 Phase and Amplitude transfer data, Antenna Return Loss. ITEM ANT. No. Phase transfer 5.1 1 ° dB dB 5.2 2 ° dB dB 5.3 3 ° dB dB 5.4 4 ° dB dB 5.5 5 ° dB dB 5.6 6 ° dB dB 5.7 7 ° dB dB 5.8 8 ° dB dB 5.9 9 ° dB dB 5.10 10 ° dB dB 5.11 11 ° dB dB 5.12 12 ° dB dB 5.13 13 ° dB dB 5.14 14 ° dB dB 5.15 15 ° dB dB 5.16 16 ° dB dB 5.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 6.0 Remote Control functions: ITEM PARAMETER 6.1 TX ON/OFF 6.2 CHANGE-OVER 6.3 ALARM SILENCE 6.4 PARAM WARNING 6.5 DISAGR WARNING 6.6 BATT WARNING 6.7 IDENT WARNING 6.8 MAINT WARNING 6.9 STBY WARNING 7.0 RCU CHECK Slave panel functions: ITEM PARAMETER 7.1 TX ON/OFF 7.3 ALARM SILENCE 7.4 ALARM 7.5 NORMAL 7.6 WARNING SLAVECHECK 8.0 Accessories: ITEM DEVICE 8.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 9.0 ITEM DC-loop Test: ANTENNA DLØ NO. Mon 1 9.1 A1 9.2 A2 9.3 A3 9.4 A4 9.5 A5 9.6 A6 9.7 A7 9.8 A8 9.9 A9 9.10 A10 9.11 A11 9.12 A12 9.13 A13 9.14 A14 9.15 A15 9.16 A16 9.17 A17 9.18 A18 9.19 A19 9.20 A20 9.21 A21 9.22 A22 9.23 A23 9.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GROUND COMMISSIONING DOCUMENT NM7000 GLIDE PATH Airport Runway Cabinet Serial no. Antenna system Antenna Distribution Unit (ADU) Serial no. Monitor Distribution Unit (MCU) Serial no. Place: Date: Navia Aviation representative (Sign.) 1DYLD $YLDWLRQ $6 Customer representative (Sign.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GENERAL The purpose of this document is to • Ensure that all operating functions are working before the equipment is put into service. • Establish useful reference data and settings for comparisons to routine maintenance data and trouble shooting.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2.3 - 2.4 Connect the NM3710 to the monitor input DS cable (from MCU). Use keypad CHANGE OVER to activate the second transmitter. Read DDM and SDM. 2.5 - 2.6 Connect the NM3710 to the monitor input NF cable (from NF antenna). Use keypad CHANGE OVER to activate the second transmitter. Read DDM and SDM. 2.7 - 2.8 Connect the NM3710 to the monitor input CLR cable (from MCU).
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1.0 Recordings from test connectors on the Cabinet: COURSE TRANSMITTERS ITEM PARAMETER LIMITS Tx 1 Tx 2 1.1 CSB DDM -0.2...+0.2% % % 1.2 CSB SDM 79.0...81.0% % % 1.3 CARRIER FREQ. F ± 5.0 kHz MHz MHz 1.4 MOD 90Hz 89.9...90.1 Hz Hz Hz 1.5 MOD 150 Hz 149.9...150.1 Hz Hz Hz 1.6 Not applicable 1.7 Not applicable CLEARANCE TRANSMITTERS ITEM PARAMETER LIMITS Tx1 Tx2 1.8 CSB DDM 39.8...40.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.0 Transmitter waveforms test point checks (BNC test points): ITE M PARAMETER 3.1 CSB LF 3.2 SBO LF 3.3 PHASE CORR 4.0 COU Tx 1 COU Tx 2 CLR Tx 1 CLR Tx 2 Attenuators and Phaser settings in the Cabinet, Antenna Distribution Unit (ADU) and Monitor combining unit (MCU).Cabinet: ITE M PARAMETER Tx1 Tx2 4.1 COU SBO-attenuator Normal dB dB 4.2 COU SBO-attenuator Wide Alarm dB dB 4.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 MCU NM3545 Antenna system: ITE M PARAMETER 4.12 GP Attenuator dB 4.13 SW Attenuator dB 4.14 Upper Antenna Phaser PH1 div . 4.15 Middle Antenna Phaser PH2 div . 4.16 Course Cancellation Phaser PH3 div . 5.0 Phase and Amplitude transfer data, Antenna Return Loss. ITE M ANT. No. 5.1 1 (Lower) Phase transfer Amplitude transfer Return loss ° d B dB 5.2 2 (Middle) ° d B dB 5.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 7.0 Slave panel functions: ITE M PARAMETER 7.1 TX ON/OFF 7.3 ALARM SILENCE 7.4 ALARM 7.5 NORMAL 7.6 WARNING 8.0 SLAVE CHECK Accessories: ITE M DEVICE 8.1 90° cable w/frequency label 8.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GROUND COMMISSIONING DOCUMENT NM7050 MARKER BEACON Airport Runway Cabinet NM 7050 Serial no. Antenna system (NM3561/NM3562 Place: Date: Navia Aviation representative (Sign.) 1DYLD $YLDWLRQ $6 Customer representative (Sign.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 GENERAL The purpose of this document is to • Ensure that all operating functions are working before the equipment is put into service. • Establish useful reference data and settings for comparisons to routine maintenance data and trouble shooting.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3.1 Connect a Directional Coupler, terminated to dummy load to the output. Turn off modulation and use the RF signal from the test output on the directional coupler for this measurement. Save Reference on the Vector Voltmeter, connect the Vector Voltmeter to the Antenna cable and measure the Return Loss. 4.1-4.10 Check that all remote control functions are OK. 5.1- 5.7 Check that all remote control functions are OK. 6.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1.0 Recordings from external test instruments and Front Panel: ITEM PARAMETER LIMITS Tx 1 1.1 Carrier frequency 75 MHz ± 2.25 kHz 1.2 Keying code 1.3 Modulation tone frequency f ± 2.5%±4% 1.4 Modulation depth (Reading from Monitor 1 & 2) 95% 1.5 RF Power to antenna 2.0 Tx 2 MHz MHz Hz Hz % % W W Recordings of monitor signal inputs to the Cabinet ITEM PARAMETER LIMITS 2.1 Power alarm -3 dB W 2.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 5.0 Slave panel functions: ITEM PARAMETER 5.1 TX ON/OFF 5.3 ALARM SILENCE 5.4 ALARM 5.5 NORMAL 5.6 WARNING 5.7 INTERLOCK SWITCH 6.0 SLAVECHECK Accessories: ITEM DEVICE 6.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 SECTION 6 APPENDIX Table of contents Diagram 1 Diagram 2 Diagram 3 Diagram 4 Diagram 5 Diagram 6 Diagram 7 Diagram 8 Relative SBO vs CS Width, NM3522..........................................2 Relative SBO vs CS Width, NM3523B. ......................................3 Relative SBO vs CS Width, NM3524..........................................4 Relative SBO vs CS Width, NM3525..........................................
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1,5 1 0,5 Relative SBO (dB) 0 -0,5 -1 -1,5 -2 -2,5 4 4,5 5 5,5 6 6,5 Course Sector Width (°) Diagram 1 Relative SBO vs CS Width, NM3522.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1 0,5 0 Relative SBO (dB) -0,5 -1 -1,5 -2 -2,5 -3 -3,5 3,5 4 4,5 5 5,5 6 Course Sector Width ( °) Diagram 2 Relative SBO vs CS Width, NM3523B.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 1 0,5 0 Relative SBO (dB) -0,5 -1 -1,5 -2 -2,5 -3 -3,5 3,5 4 4,5 5 5,5 6 Course Sector Width (°) Diagram 3 Relative SBO vs CS Width, NM3524.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2 1,5 1 Relative SBO (dB) 0,5 0 -0,5 -1 -1,5 -2 0,55 0,6 0,65 0,7 0,75 0,8 0,85 0,9 0,95 Sector Width (°) Diagram 4 Relative SBO vs CS Width, NM3525.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 2 1,5 1 Relative SBO (dB) 0,5 0 -0,5 -1 -1,5 -2 0,55 0,6 0,65 0,7 0,75 0,8 0,85 0,9 0,95 Sector Width (°) Diagram 5 Relative SBO vs CS Width, GP antenna systems.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3,25 GP angle Upper ant. Lower ant.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3,25 GP angle Lower ant. (°) (cm) 3,2 0,20 -3 3,1 0,21 -1 3,0 0,23 0 0 2,9 0,24 +1 2,8 0,26 +3 Relative Sideways Offset vs GP Angle 3,2 3,15 Glide Path Angle (°) 3,1 3,05 3 2,95 2,9 2,85 Upper antenna: (cm) x 3 2,8 -15 -10 -5 0 5 10 15 Lower antenna relative height (cm) Diagram 7 GP angle vs relative antenna height, NM3544.
1250$5& ,167$//$7,21 &200,66,21,1* +$1'%22. ,167580(17 /$1',1* 6<67(0 3,25 GP angle Lower ant. (°) (cm) 3,2 0,13 -2 3,1 0,14 -1 3,0 0,15 0 0 2,9 0,16 +1 2,8 0,17 +2 Relative Sideways Offset vs GP Angle 3,2 3,15 Glide Path Angle (°) 3,1 3,05 3 2,95 2,9 2,85 Upper antenna: (cm) x 2 2,8 -20 -15 -10 -5 0 5 10 15 20 Lower antenna relative height (cm) Diagram 8 GP angle vs relative antenna height, NM3543.
