Weehawken Tunnel Radio Repeater System User/Maintenance Handbook For G.E Transport Systems AFL Works Order Nō.: Q112727 AFL product part Nō.’s: 50-118101 (3 Ch UHF CCE) 50-118201 (UHF Simplex CCE) 50-118301 (1 Ch UHF CCE) 80-230701 (UHF Triplexer) 80-231301 (VHF/UHF Power Supply) 80-231303 (Alarm System) Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
Table of Contents INTRODUCTION ............................................................................................................................................6 Scope................................................................................................................................................................................ 6 Purpose....................................................................................................................................................
5.2.5 6. UHF Hybrid Cross-Band Coupler Parts List................................................................................................ 38 POWER SUPPLIES & ALARMS ......................................................................................................39 6.1 UHF Power Supply (80-231301) .................................................................................................................... 39 6.1.1 UHF Power Supply Description ..........................................
7.12.6 17-002101 Controller Module DIP Switch Connector Data .................................................................... 59 7.12.7 Drg. Nō. 17-002190, DIP Switch Module Controller Outline Drawing ................................................... 60 7.13 Channel Selective Modules (17-003033 & 17-010803) ................................................................................. 61 7.13.1 Description..............................................................................................
AMENDMENT LIST RECORD SHEET Issue Nō. A Date 05/09/2005 Incorporated by CMH Page No.’s Amended Reason for new issue 1st Draft Document Ref:-Weehawken_UHF Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
INTRODUCTION Scope This handbook is for use solely with the equipment identified by the AFL Part Number shown on the front cover. It is not to be used with any other equipment unless specifically authorised by Aerial Facilities Limited. Purpose The purpose of this handbook is to provide the user/maintainer with sufficient information to service and repair the equipment to the level agreed.
EC DECLARATION OF CONFORMITY In accordance with BS EN ISO/IEC 17050-1&-2:2004 0086 AERIAL FACILITIES LTD Aerial House Asheridge Road Chesham Bucks HP5 2QD United Kingdom DECLARES, UNDER OUR SOLE RESPONSIBILITY THAT THE FOLLOWING PRODUCT PRODUCT PART NO[S] 50-118101, 50-118201, 50-118301 PRODUCT DESCRIPTION Weehawken UHF repeater system IN ACCORDANCE WITH THE FOLLOWING DIRECTIVES: 1999/5/EC directives The Radio & Telecommunications Terminal Equipment Directive Annex V and its amending HAS BEEN DESIGNED
Glossary of Terms Repeater or Cell Enhancer Band Selective Repeater Channel Selective Repeater AC AGC BBU BTS CEMS C/NR DC Downlink (D/L) FO GND ID LED LNA LPA MOU M.S. MTBF N/A N/C OFR OIP3 PA RF RSA Rx S/N Tx Uplink (U/L) VSWR WDM A Radio Frequency (RF) amplifier which can simultaneously amplify and re-broadcast Mobile Station (MS) and Base Transceiver Station (BTS) signals. A Cell Enhancer designed for operation on a range of channels within a specified frequency band.
Key to AFL RF Module Drawing Symbols Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
1. SAFETY CONSIDERATIONS 1.1 Earthing of Equipment Cell Enhancers supplied from the mains must be connected to grounded outlets and earthed in conformity with appropriate local, national and international electricity supply and safety regulations. 1.2 Electric Shock Hazard Electrical shocks due to faulty mains driven power supplies.
1.3 RF Radiation Hazard RF radiation, (especially at UHF frequencies) arising from transmitter outputs connected to AFL’s equipment, must be considered a safety hazard. This condition might only occur in the event of cable disconnection, or because a ‘spare’ output has been left unterminated. Either of these conditions would impair the system’s efficiency. No investigation should be carried out until all RF power sources have been removed.
1.4 Chemical Hazard Beryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes used in devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can be toxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or by contact. Products that contain beryllium are load terminations (dummy loads) and some power amplifiers. These products can be identified by a yellow and black “skull and crossbones” danger symbol (shown above).
2. OVERVIEW/ SYSTEM DESCRIPTION 2.1 General System Description The Weehawken tunnel radio system is designed to amplify various bands of radio frequencies, in either channelised or band selective modes. This handbook is dedicated to the UHF radio repeating system. All the hardware is built into standard 19” rack mounted cabinets which have an environmental IP rating of 54.
3. WEEHAWKEN UHF RACK DRAWINGS UHF Rack System Diagram, Drg. Nō. 80-231482 3.1 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
3.2 UHF Rack Layout and Interconnections Diagram, Drg. Nō. 80-231453 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
3.3 Rack to Rack Interconnections Diagram, Drg. Nō. 80-231455 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
3.4 Weehawken UHF System Frequencies Look-up Table Agency Jersey City Police Department Jersey City Fire Department Jersey City Fire Department Hoboken Fire Dept West New York Police Department Channel Number UHF CHN 1 UHF CHN 2 UHF CHN 3 UHF CHN 4 UHF CHN 5 Uplink Tx Downlink Rx 465.3750 465.5500 465.6000 471.5500 473.3125 460.3750 460.5500 460.6000 471.5500 470.3125 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4. UHF CELL ENHANCERS 4.1 Three Channel UHF Cell Enhancer 50-118101 4.1.1 Three Channel UHF Cell Enhancer Description The UHF (400MHz band) cell enhancer employs three channel modules in each path for three dedicated frequencies (NJ FD x2 & NJPD). The downlink output is realised using a phased-parallel arrangement for the power amplifiers which effectively doubles their 20Watts output.
4.1.3 Three Channel UHF Cell Enhancer Mechanical Specifications PARAMETER Height: Rack Width: Depth: Height: Shelves: Width: Depth: Temperature range: operational: storage: Weight: Humidity: RF Connectors: Environmental Protection: Case: Heatsinks: Finish: Handles: Fascia Supply Cable: SPECIFICATION Standard Eurorack 19" (482.6mm) 600mm (800 optional) 8U 19" (482.
4.1.4 Three Channel UHF Cell Enhancer System Diagram, Drg. Nō. 50-118181 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.1.5 Three Channel UHF Cell Enhancer Outline Drawing, Drg. Nō. 50-118191 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.1.6 Three Channel UHF Cell Enhancer 50-118101 Parts List AFL Part Nō.
4.2 4.2.1 UHF Simplex Cell Enhancer (50-118201) UHF Simplex Cell Enhancer Description The UHF Simplex cell enhancer operates by muting the uplink channel when the downlink channel is transmitting, and vice-versa so that positive feedback between Tx and Rx amplifiers is not possible. 4.2.
4.2.3 UHF Simplex Cell Enhancer System Diagram, Drg. Nō. 50-118281 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.2.4 UHF Simplex Cell Enhancer Outline Drawing Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.2.5 UHF Simplex Cell Enhancer Parts List AFL Part Nō. 08-930003 10-000901 11-007302 11-007402 11-007901 12-021601 17-009724 17-010803 19-000826 19-000921 19-000924 80-008901 80-063920 91-030002 91-500001 91-510003 91-510032 91-600001 91-600014 91-620001 91-660001 93-540035 96-110001 96-600002 96-600003 96-700017 96-700034 96-700035 97-400005 Part Description 2 PORT ISOLATOR 360-470MHz SMA SW. ATTENUATOR 0.25W 0-15dB LNA. 380-500MHz 20dB (C/W RELAY) GA LNA.
4.3 4.3.1 One Channel UHF Cell Enhancer (50-118301) One Channel UHF Cell Enhancer Description The 5W/1W single channel cell enhancer is for the West New York PD in order that this agency may communicate into and out of the Weehawken tunnel. 4.3.2 One Channel UHF Cell Enhancer Technical Specification PARAMETER Frequencies: Gain: Gain Adjustment: Uplink Power: Maximum uplink output: Downlink Power: Maximum downlink output power: Uplink IP3: Downlink Downlink Ch. module AGC level: Uplink Ch.
4.3.3 One Channel UHF Cell Enhancer System Diagram Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.3.4 One Channel UHF Cell Enhancer Outline Drawing Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
4.3.5 One Channel UHF Cell Enhancer Parts List AFL Part Nō. 08-930003 10-000901 11-007302 11-007402 11-007901 12-021601 17-001107 17-003033 17-009724 19-000826 19-000921 19-000924 20-001601 80-063920 91-030002 91-500001 91-510003 91-510032 91-600001 91-600014 91-620001 91-660001 96-110001 96-600002 96-600003 96-700034 96-700035 97-400005 Part Description 2 PORT ISOLATOR 360-470MHz SMA SW. ATTENUATOR 0.25W 0-15dB LNA. 380-500MHz 20dB (C/W RELAY) GA LNA.
5. UHF PASSIVE SYSTEM COMPONENTS 5.1 5.1.1 UHF Triplexer (80-230701) UHF Triplexer Description The two triplexer shelves (80-230701 & 80-230702) are the interface between the UHF cell enhancers and the tunnel leaky feeders. Two of these shelves exist, one uplink , one downlink, both hardware identical but with the band selective filters in each being tuned for uplink or downlink.
5.1.3 UHF Triplexer System Diagram, Drg. Nō. 80-230781 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
5.1.4 UHF Triplexer Shelf Outline Drawing, Drg. Nō. 80-230791 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
5.1.5 UHF Triplexer Parts List AFL Part Nō. 02-013401 19-000921K 91-030002 91-130001 Part Description 6P CL FILTER (0.5 min BW) LARGE SMA ASSY 3U CHASSIS KIT (400mm deep) N ADAPTOR PANEL FEMALE:FEMALE SMA ADAPT 'T' ALL FEMALE 3 GHz Qty. 3 1 4 2 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
5.2 5.2.1 UHF Hybrid Cross-Band Coupler (80-230702) UHF Hybrid Cross-Band Coupler Description The UHF cross-band coupler shelf allows the VHF and UHF frequencies to be combined to the leaky feeder outputs using hybrid couplers which have been designed for a very low insertion loss and high rejection. No alarms are fitted to passive shelves. 5.2.
5.2.3 UHF Hybrid Cross-Band Coupler System Diagram, Drg. Nō. 80-230782 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
5.2.4 UHF Hybrid Cross-Band Coupler Shelf Outline Drawing, Drg. Nō. 80-230792 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
5.2.5 UHF Hybrid Cross-Band Coupler Parts List AFL Part Nō. 05-000101 07-005701 19-000921K 91-030002 Part Description TRANSMITTER HYBD COUPL.4 PORT CROSSBAND CPLR XC 250/380 N 3U CHASSIS KIT (400mm deep) N ADAPTOR PANEL FEMALE:FEMALE Qty. 2 2 1 6 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
6. POWER SUPPLIES & ALARMS 6.1 UHF Power Supply (80-231301) 6.1.1 UHF Power Supply Description The power supply shelves are separate for the VHF/UHF and 800MHz cell enhancers. The VHF/UHF supply shelf is a 24V DC shelf which supplies six, 24Volt XLR connector outputs at a maximum total output power of 800Watts DC. These DC outputs are fused at a 10Amp rating although four of the six DC outputs will be drawing less than 5Amps at any one time. 6.1.
6.1.4 UHF Power Supply Outline Drawing, Drg. Nō. 80-231391 Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
6.1.5 UHF Power Supply Parts List AFL Part Nō.
6.2 6.2.1 Alarm/Monitor Shelf (80-231303) Alarm/Monitor Shelf Description The alarm shelf acts as an alarm concentrator for all the alarms in the system. Firstly, within each shelf containing active components, the individually alarmed modules are ‘summed’ and presented to that shelves’ 9-way alarm connector as a volt-free relay contact pair. These alarm contact pairs are wired to the krone block in the lower rack space and from there the pairs are presented to the alarm shelf.
6.2.3 Alarm/Monitor Shelf Parts List AFL Part Nō. 19-000724 19-000725 19-000826 20-001601 91-520003 91-520005 91-520010 91-600014 91-600015 96-300072 96-600001 96-700034 96-700035 Part Description 1U 19" UNIT FRONT PANEL FAB 1U 19" UNIT 400 DEEP CHASSIS + BKT 2U,3U,4U 19" UNIT 400 DEEP LID 12V RELAY BOARD POWER SWITCHD/FUSED MAINS INL.
7. SUB-UNIT MODULES Note that the sub unit modules are tabled in part number order – the modules pertinent to any particular shelf will be found in the parts list under the heading of that shelf. 7.1 Bandpass Filter (02-013401) 7.1.1 Description The bandpass filters are multi-section designs with a bandwidth dependent upon the passband frequencies, (both tuned to customer requirements). The response shape is basically Chebyshev with a passband design ripple of 0.1dB.
7.2 Tx Hybrid Coupler (05-000101) 7.2.1 Description The Hybrid Combiner used is a device for accurately matching two or more RF signals to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports will be terminated with an appropriate 50Ω load. 7.2.
7.3 7.3.1 3dB UHF Splitter (05-002603) Description The 3dB Splitter/Combiner used is a device for accurately matching two or more RF signals to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports will be terminated with an appropriate 50Ω load. 7.3.
7.4 7.4.1 1 Watt 3dB Broadband Splitter (05-002901) Description The 1 Watt, 3dB Splitter/Combiner used is a device for accurately matching two or more RF signals to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports will be terminated with an appropriate 50Ω load. 7.4.
7.5 7.5.1 Crossband Coupler (07-005701) Description The purpose of a crossband coupler is to either combine/split transmission signals from different parts of the frequency spectrum. The crossband coupler fitted here, is the means by which the separate VHF and UHF frequency band signals are mixed to form a composite RF signal. It basically comprises of a 3 port device, two filters, one a low pass the other a high pass, that are then mixed and fed to a common output.
7.6 7.6.1 Crossband Coupler (07-005705) Description The purpose of a crossband coupler is to either combine/split transmission signals from different parts of the frequency spectrum. It basically comprises of a 3 port device, two filters, one a low pass, the other a high pass feeding a common output. In this case, a VHF spectrum signal source is to be combined with a band 2 FM source, (many other combinations are also possible).
7.8 7.8.1 Low Noise Amplifiers (11-007302 & 11-007402) Description The low noise amplifiers used are double stage solid-state low-noise amplifiers. Class A circuitry is used in the units to ensure excellent linearity over a very wide dynamic range. The two active devices are very moderately rated to provide a long trouble-free working life. There are no adjustments on these amplifiers, and in the unlikely event of failure then the entire amplifier should be replaced. 7.8.
7.8.4 LNA ‘D’ Connector Pin-out details Connector pin 1 2 3 4 5 6 7 8 9 Signal +Ve input (10-24V) GND Alarm Relay O/P bad Alarm Relay common Alarm Relay good No connection TTL voltage set TTL alarm/0V (good) O/C good/0V bad Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
7.9 1Watt Low Power Amplifier (11-007901) 7.9.1 Description This amplifier is dedicated to be a 1.0 W driver from 380 MHz to 470 MHz. It is a 2 stage amplifier where each stage is in balanced configuration. It demonstrates very high linearity and good input/output VSWR. There is a Current Fault Alarm Function, which indicates failure of each one of the RF transistors by various alarm output options.
7.10 5Watt Medium Power TETRA Amplifier (12-021601) 7.10.1 Description The power amplifier fitted to this unit is a multi-stage, solid state power amplifier. Class A circuitry is employed throughout the device to ensure excellent linearity over a wide dynamic frequency range. All the semi-conductor devices are very conservatively rated to ensure low device junction temperatures and a long, trouble free working lifetime. The power amplifier should require no maintenance over its operating life.
7.10.4 PA Connector Pin-Outs Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
7.11 10 & 20W Power Amplifiers (12-016302 & 12-016301) 7.11.1 Description These amplifiers are Class A 20W power amplifiers operating from 380MHz to 470MHz in a 1 stage balanced configuration. It demonstrates a very high linearity and a very good input/output return loss (RL). They have a built in Current Fault Alarm Function.
7.12 D.I.P Channel Control Module (17-002101) 7.12.1 Description The operating frequency for each channel in each repeater is programmed by 16 DIL (Dual In Line) switches. The programming switches are mounted in the Channel Control Module. The Channel Selectivity Modules are connected to the Channel Control Module via multiway ribbon cables. Adjacent to the DIL switches for each channel is a toggle switch to turn on and off individual channels as required.
7.12.2 Programming Procedure Check that the required frequency falls within the operational frequency limits of the Cell Enhancer. For each channel required, subtract the synthesiser offset from the required operating frequency and record the resulting local oscillator frequency. Divide each local oscillator frequency by the channel spacing and check that the result is an integer (i.e: no remainder).
7.12.4 25kHz step size switch functions Switch Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Synthesiser offset added when switch in UP position +25kHz +50kHz +100kHz +200kHz +400kHz +800kHz +1.6MHz +3.2MHz +6.4MHz +12.8MHz +25.6MHz +51.2MHz +102.4MHz +204.8MHz +409.6MHz +819.2MHz 7.12.5 Programming Example Frequency required: 454.000MHz Channel spacing: 12.5kHz Synthesiser offset: -21.4MHz The Local Oscillator frequency is therefore: 454.000 – 21.4 = 432.
7.12.6 17-002101 Controller Module DIP Switch Connector Data IDC PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 25-way Connector 13 25 12 24 11 23 10 22 9 21 8 20 7 19 6 18 5 17 4 16 3 15 2 14 1 --- Function (12.5kHz steps) Freq. bit 1 (12.5kHz) Freq. bit 2 (25kHz) Freq. bit 3 (50kHz) Freq. bit 4 (100kHz) Freq. bit 5 (200kHz) Freq. bit 6 (400kHz) Freq. bit 7 (800kHz) Freq. bit 8 (1.6MHz) Freq. bit 9 (3.2MHz) Freq. bit 10 (6.4MHz) Freq. bit 11 (12.8MHz) Freq. bit 12 (25.
7.12.7 Drg. Nō. 17-002190, DIP Switch Module Controller Outline Drawing 1 ON CHANNEL 1 3 4 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 ON. 7 8 ON. 8 ON. 8 8 1 1 1 1 2 3 2 3 2 3 2 4 4 4 3 4 5 5 5 5 6 6 6 6 7 7 7 7 4 1 POW ER 16 SWITCH 1 ON. 8 SWITCH 16 ON. 8 5 ON CHANNEL 4 CHANNEL CONTROL MODULE THIRD ANGLE PROJECTION OFF 8 5 Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England ON.
7.13 Channel Selective Modules (17-003033 & 17-010803) 7.13.1 Description The channel selectivity module is employed when the Cell Enhancer requirement dictates that very narrow bandwidths (single operating channels), must be selected from within the operating passband. One channel selectivity module is required for each channel.
7.13.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram Weehawken Tunnel UHF Repeaters User/Maintenance Handbook Handbook Nō.
7.14 12 & 24V Relay Boards (20-001601 & 20-001602) 7.14.1 Description The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is equipped with two dual pole change-over relays RL1 and RL2, with completely isolated wiring, accessed via screw terminals. Both relays are provided with polarity protection diodes and diodes for suppressing the transients caused by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring circuits.
7.15 12 & 24V Single Relay Board (80-008901 & 80-008902) 7.15.1 Description The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is equipped with a single dual pole change-over relay RL1, with completely isolated wiring, accessed via a 15 way in-line connector.
8. INSTALLATION When this equipment is initially commissioned, please use the equipment set-up record sheet in Appendix A. This will help both the installation personnel and AFL should these figures be needed for future reference or diagnosis. 8.1 General Remarks The size and weight of the equipment racks mean that they represent a significant topple hazard unless they are securely bolted to the floor though the mounting holes in the base of the unit.
8.2 RF Connections All RF connections are made to the cable termination, located on the bulkhead at the rear of the equipment at floor level. Care must be taken to ensure that the correct connections are made with particular attention made to the base station TX/RX ports. In the event that the base transmitter is connected to the RX output of the rack, damage to the equipment will be done if the base station transmitter is then keyed. Ensure that connections are kept clean and are fully tightened. 8.
9. MAINTENANCE 9.1 9.1.1 Fault Finding Quick Fault Checklist All AFL equipment is individually tested to specification prior to despatch. Failure of this type of equipment is not common. Experience has shown that a large number of fault conditions relating to tunnel installations result from simple causes often occurring as result of transportation, unpacking and installation. Below are listed some common problems which have resulted in poor performance or an indicated non-functioning of the equipment.
9.1.3 Downlink Confirm that there is a signal at the expected frequency and strength from the base station. If this is not present then the fault may lay outside the system. To confirm this, inject a downlink frequency signal from a known source at the master site BTS input and check for output at the remote site feeder output. If a signal is not received at the output it will be necessary to follow the downlink path through the system to find a point at which the signal is lost.
9.1.6 Fault repair Once a faulty component has been identified, a decision must be made on the appropriate course to carry out a repair. A competent engineer can quickly remedy typical faults such as faulty connections or cables. The exceptions to this are cable assemblies connecting bandpass filter assemblies that are manufactured to critical lengths to maintain a 50-ohm system. Care should be taken when replacing cables or connectors to ensure that items are of the correct specification.
9.3 9.3.1 Care of Modules General Comments Many of the active modules contain semiconductor devices utilising MOS technology, which can be damaged by electrostatic discharge. Correct handling of such modules is mandatory to ensure their long-term reliability. To prevent damage to a module, it must be withdrawn/inserted with care. The module may have connectors on its underside, which might not be visible to the service operative. 9.3.
5) If the amplifier to be removed has a heatsink attached, there may be several different ways it can have been assembled. The most commonly used method, is screws through the front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifier within the main case. If the heatsink is mounted on the rear of the main case (e.g.
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS GENERAL INFORMATION Client Name: AFL Equip. Model Nō. Site Name: Date: Model ANTENNA SYSTEMS Gain Azimuth Comments Type Loss Comments A - Service Antenna B – Donor Antenna Length C – Service Feeder D – Donor Feeder INITIAL PARAMETERS E – CE Output Power F – Antenna Isolation G – Input signal level from donor BTS Operating Voltage DOWNLINK CALCULATIONS Parameter Comments Input signal level (G) CE max.
