Back to Menu Table 3-5 Example Waveform Profile Radio Parameters Parameter AM-Voice Maritime RF power output Squelch level Audio AGC Default Setting Setting Range 50 W (AM-Voice) Between 1 and 50 W (1 W steps) AM-Voice 100 W (Maritime) Between 1 and 100 W (1 W steps) Maritime -102 dBm Between -60 and -110 dBm (1 dB steps) On On or Off Squelch noise compensation On On or Off Squelch carrier override Off On or Off Transmit timeout 180 s 0 to 600 s (
Back to Menu Creating and Storing a Frequency Preset Up to 400 frequency presets, designated FP1 to FP400, can be stored in the radio ready for immediate recall. A frequency preset stores a valid operating frequency plus an associated Waveform Profile; for example, 121.500 MHz operating with Waveform Profile WP5. When the radio is received from Park Air, all 400 Frequency Presets are set to 118.000 MHz operating with the default Waveform Profile WP1.
Back to Menu Fig 3-41 Frequency Preset Edit Screen (3) The first parameter that can be changed is the Name. A frequency preset can have any name up to eight characters long. In this example, the default designation FP1 is being changed to ‘Approach’ as shown in Fig 3-42. To change the name, press Key 2 – Change. The new name can be entered using the alphanumeric keypad. (4) When the new name has been entered, press Key 13 – Select. You are returned to the Frequency Preset Edit screen (Fig 3-41).
Back to Menu (5) The next parameter is to attach a previously stored Waveform profile to the frequency preset. Press Key 3 – Change (Fig 3-41). Pressing Key 9 to scroll up, or Key 10 to scroll down, highlight the required waveform profile (Fig 3-43), then press Key 13 – Select. Fig 3-43 Select Waveform Profile (6) From the Frequency Preset Edit screen, press Key 4 – Change to select the required Frequency (Fig 3-44). Using the keypad, enter the required frequency.
Back to Menu Channels are only available when using the Maritime waveform. Each channel stores separate predefined transmit and receive maritime VHF frequencies. Channels cannot be altered by the user. The radio can be set to either ‘Ship’ or ‘Shore’, which swaps the stored transmit and receive frequencies. Also the ‘International’ or ‘American’ frequency sets can be selected. The factory default is ‘Ship’, ‘International’, Channel 16.
Back to Menu Security The radio has a security feature that allows certain operations, for example, changing the radio’s configuration settings, to be performed only after a 4-digit PIN number has been entered. The radio has three security profiles: Security Profile A (SPA). SPA limits access to defined radio functions via the front panel and associated M7 remote controllers Security Profile B (SPB).
Back to Menu To define the security profiles: This procedure should be completed only by the system administrator. (1) From the Home screen (Fig 3-46) press Key 6 – Security to display the Security screen (Fig 3-47). Press Key 6 to display the Security screen Fig 3-46 Home Screen – Security Set Up (2) The Security screen shows the restrictions applicable to profiles SPA, SPB and SPZ. A restriction is indicated by a cross ( ) and no restriction is indicated by a tick ( ).
Back to Menu (3) Ensure the Enable Security screen (Fig 3-48) is displayed. Using the keypad, key in a 4 digit Administrator PIN number, then press Key 13 – Enter. Fig 3-48 Enable Security Screen (4) Ensure the Security screen is displayed. Use Key 9 – Up and Key 10 – Down to highlight one of the three functions. Use Key 11 – A, Key 12 – B and Key 13 – Z to toggle between restricted ( ) and no restriction ( ).
Back to Menu Fig 3-50 Profile A Security Screen (9) Press Key 5 – Home. (10) Press Key 6 – Security Log Out. Security profiles are now set. When security is applied, personnel must log in to make changes to the radio. How to log in is detailed on page 3-10.
Back to Menu Intentionally Blank M7X and M7R Page 3-44 Operation
Back to Menu Installation
Back to Menu Warnings and Cautions WARNING Dangerous Voltage The instructions given in this topic involve connecting dangerous voltage to the radio and should be carried out only by suitably qualified personnel. WARNING Dangerous Voltage A mains isolating switch should be fitted close to, and easily accessible from, the radio's position. The isolation switch should isolate both live and neutral supplies, be clearly labelled, and adequately rated to protect the equipment.
Back to Menu WARNING Antenna Radiation The transmit antenna must be installed such that the resultant radiated field strength is below 10 W/m² in areas normally accessible to personnel. The RF field strength from the antenna can be predicted from the equation S=1.45PG/4πR2 [Where S = power density; P = power input to antenna; G = antenna gain; R = distance to centre of radiation and 1.45 = multiplication factor for average power based on a modulation index of 95%.
Back to Menu Introduction The procedures necessary to install an M7X or M7R are listed in Table 4-1. Table 4-1 Installation Procedures Procedure Reference 1 Read and understand the warnings and cautions given on page 4-2 and page 4-3. 2 Perform an initial inspection of the radio. see page 4-4. 3 Fit the radio into an equipment cabinet (if required). see page 4-5. 4 Extend the Control Head if required. see page 4-7. 5 Select the required antenna option. see page 4-9.
Back to Menu Fit the Radio into an Equipment Cabinet The radio is designed to be fitted onto telescopic slides within a standard 19 inch (483 mm) equipment cabinet. Slide mounting positions are shown in Fig 4-2 and the radio chassis width in Fig 4-3. Details of suitable slides are available from Park Air. 88.5 84.5 X X X X X X 84.5 88.5 35 All dimensions in mm. Six holes marked X are for slides. Slide mounting holes have M4 threads. 71.5 97 232 256.7 423.5 449 547.
Back to Menu Antenna 1 Connector (not fitted on M7R) dc Fuse dc Supply Connector Antenna 2 Connector Antenna 3 Connector Interface Panel (see Fig 4-13 on page 4-18) Reference Frequency Connector ac Supply ac Supply On/Off Connector Switch dc Supply On/Off Chassis Stud ac Fuse Switch Fig 4-4 M7X/M7R Radio Rear Panel Controls and Connectors M7X and M7R Page 4-6 Installation
Back to Menu Extending the Control Head Usually, if the radio is to be operated from a remote position, an M7 Controller is used to operate one or more radios. The controller is a self-contained unit operating from its own power supply. In some applications it may be desirable to extend the radio’s Control Head up to 10 metres away from the radio. In this configuration, the Control Head continues to be powered from the radio.
Back to Menu Table 4-2 Radio to Control Head Interconnections M7 Radio Rear Panel RCU Connector Pin Characteristic Signal 1 RRing 2 RTip 3 Ground 4 TRing 5 TTip 6 Supply out Control Head E1 Connector Pin Balanced 120 ohm, 2.048 Mbps, HDB3 coding Signal 1 TRing 2 TTip 0V 3 Ground Balanced 120 ohm, 2.
Back to Menu Selecting the Required Antenna Option M7X Transceiver The M7X transceiver has three antenna connectors (designated Antenna 1, 2 and 3) as shown in Fig 4-4 on page 4-6. Six antenna configurations are possible as detailed in Table 4-3. For example, Configuration A is a common transmit/receive antenna at Antenna connector 1.
Back to Menu Changing the Configuration WARNING Dangerous Voltage Ensure the input ac and dc supplies are disconnected before removing the top cover. Caution ESDs This equipment contains devices sensitive to electrostatic discharge. Precautions applicable to handling such equipment, including wearing a static protection wrist strap connected to earth, should always be taken.
Back to Menu RC INTERFACE CUSTOM INTERFACE GUARD RECEIVER RF CONTROL PROCESSOR STANDARD INTERFACE Antenna configuration links (see Fig 4-8) located under RF PA cover. A B C D E F RF PA Cover M3 x 6 mm countersunk securing screws (26 off) Fig 4-7 RF PA Cover (4) Identify the antenna configuration links (Fig 4-8) that are located at the rear of the RF PA (see Fig 4-7). Set links, as detailed in Table 4-5, to suit the required configuration.
Back to Menu 23 17 14 19 21 15 22 16 18 Fig 4-8 Antenna Configuration Links Table 4-5 Antenna Configurations Configuration Antenna 1 Antenna 2 Antenna 3 Link CN14 to: Link CN18 to: Link CN19 to: A TX and RX Not used Not used CN16 CN21 CN23 B TX and RX Not used GD CN17 CN21 CN23 C TX, RX and GD Not used Not used CN15 CN20 CN21 D TX RX Not used CN16 CN22 CN23 E TX RX GD CN17 CN22 CN23 F TX RX and GD Not used CN15 CN20 CN22 G Not used RX Not used CN16
Back to Menu Connect the Chassis Stud WARNING Chassis Earth A chassis stud is fitted to the radio's rear panel. This stud is used to connect the radio to the equipment cabinet, or to the user's system earth point. The stud must not be used as the safety earth.
Back to Menu Connecting the dc Input Supply The dc input supply connects to the radio’s rear panel dc supply connector as shown in Fig 4-4 on page 4-6. Connection is made using the dc input connector supplied with the radio (item 1 of the customer kit – see page 4-4). Instructions for fitting the connector are shown in Fig 4-9. (3) Solder wires to the insert terminals as shown. (1) Place bushing and chuck over the cable. (2) Prepare cable as shown.
Back to Menu Connecting the ac Input Supply WARNING Dangerous Voltage A mains isolating switch should be fitted close to, and easily accessible from, the radio's position. The isolation switch should isolate both live and neutral supplies, be clearly labelled, and adequately rated to protect the equipment. WARNING Earth Connection This equipment must be earthed. The earth terminal of the ac connector should be used as the safety earth.
Back to Menu Control Head Interfaces The Control Head has two interfaces (Fig 4-11): a Microphone/Headset/Maintenance connector and a Fill connector. Microphone/Headset/ Maintenance Connector Fill Connector Fig 4-11 Location of Microphone/Headset/Maintenance and Fill Connectors Microphone/Headset/Maintenance Connector This is a Lemo 10-way socket used for connecting a microphone, headset or maintenance computer. The connector’s pin-out is listed in Table 4-6 and the pin arrangement shown in Fig 4-12.
Back to Menu Table 4-6 Microphone/Headset/Maintenance Connector Pin-Out Pin Signal Characteristic 1 Headset A+ (non-boom side) Adjustable between 0 and 3 V pk-pk 2 Headset A ground 0V 3 PTT 0 V to PTT 4 Ground 0V 5 Headset B+ (boom side) Adjustable between 0 and 3 V pk-pk 6 Headset B ground 0V Input or Output Output Input Output - Between 2 and 35 mV rms on the High sensitivity setting to remain in ALC range 7 Between 8 and 140 mV rms on the Low sensitivity setting to remain in ALC r
Back to Menu External Signal Connections External signal connections, except the external 10 MHz reference frequency, are made using one or more of the thirteen RJ48 connectors fitted to the Interface panel. The panel is located as shown in Fig 4-4 on page 4-6, and detailed in Fig 4-13. The 10 MHz reference frequency connector is detailed on page 4-33. The pin-out of an RJ48 connector is shown in Fig 4-14. 10/100Base-T ethernet network Ethernet connections. See page 4-32.
Back to Menu Audio – Narrow-band (A) Connector An 8-way RJ48 socket marked NB(A) that is used to connect the primary narrow-band audio and signalling. All inputs and outputs are configurable to allow for system connection requirements. It can also be configured to combine Guard signals simultaneously with the main receiver audio and squelch. The pin-out is listed in Table 4-7. The connector has an integral amber indicator that lights when the PTT input is active.
Back to Menu Table 4-7 Narrow-band (A) Audio Connector Pin-Out Pin Signal 1 NB (A) line out - 2 NB (A) line out + 3 PTT indication Characteristics Input or Output Balanced 600 ohm, transformer coupled audio output adjustable between -20 dBm and +10 dBm in 1 dB steps. The factory default setting is -13 dBm. A phantom squelch output, superimposed on the audio lines, is available; this is a normally open solid-state relay operating between -60 V and +60 V ac or dc, at a maximum 100 mA.
Back to Menu Audio – Narrow-band (B) Connector An 8-way RJ48 socket marked NB (B) that is used to connect secondary narrow-band audio and signalling; this could be, for example, connections to extended analogue controllers. This connector does not have the same level of configuration as the primary narrow-band audio and signalling connector, NB (A). NB (B) can be configured to combine Guard signals simultaneously with the main receiver audio and squelch. The pin-out is listed in Table 4-8.
Back to Menu Audio – Wideband (A) Connector An 8-way RJ48 socket marked WB(A) that is used to connect wideband audio and signalling. WB (A) is used for the primary wideband audio connection point for data systems. The pin-out is listed in Table 4-9. The connector has an integral amber indicator that lights when the PTT input is active. Note: All line levels for this connector are equivalent to sine wave level regardless of the waveform selected. The peak to average ratio of a sine wave is 3 dB.
Back to Menu Audio – Wideband (B) Connector An 8-way RJ48 socket marked WB(B) that is used to connect wideband audio and signalling. Uses include connection to a data system, or connection to an encryption system for COMSEC operation. The pin-out is listed in Table 4-10. The connector has an integral amber indicator that lights when the PTT input is active. Note: All line levels for this connector are equivalent to sine wave level regardless of the waveform selected.
Back to Menu Facilities Connector An 8-way RJ48 socket marked FAC that provides connection to various system facilities. The pin-out is listed in Table 4-11. The connector has an integral amber indicator that lights when the Inhibit input is active. Table 4-11 Facilities Connector Pin-Out Pin Signal Characteristics Input or Output 1 Inhibit A TTL input that inhibits radio operation. A low input is required to inhibit the radio.
Back to Menu BIT Connector An 8-way RJ48 socket marked BIT used to connect BIT signals to associated parts of the system. The pin-out is listed in Table 4-12. The connector has an integral green indicator that lights when the Ready output is active. Table 4-12 BIT Connector Pin-Out Pin Signal Characteristics Input or Output Output 1 Ready Open collector NPN transistor grounding output, 200 mA maximum.
Back to Menu Serial 1 Connector An 8-way RJ48 socket marked Serial 1 that is used to connect the radio to auxiliary equipment such as an auto-tune filter or an RCMS. The pin-out is listed in Table 4-13. The connector has an integral amber indicator that lights when data is being transferred.
Back to Menu Audio – Tape/External Speaker Connector An 8-way RJ48 socket marked TAPE that is used to connect a tape recorder or an external loudspeaker. The pin-out is listed in Table 4-14. Table 4-14 Tape/External Speaker Connector Pin-Out Pin Signal Characteristics Input or Output 1 TX/RX tape line out - 2 TX/RX tape line out + 3 Not connected - 4 Speaker drive 3.5 V pk-pk. 5 Speaker ground 0 V. - 6 Not connected - - 7 Ground 0 V. - Balanced 600 ohm, -13 dB (±2 dB).
Back to Menu RCU Connector An 8-way RJ48 socket marked RCU that is used to connect a co-located (less than 10 metres) M7C RCU. The link provides E1 digital voice and data, plus power for the RCU. The pin-out is listed in Table 4-15. The connector has an integral green indicator that lights when a valid E1 signal is detected. Table 4-15 RCU Connector Pin-Out Pin Signal 1 RRing 2 RTip 3 Ground 4 TRing 5 TTip Characteristics Balanced 120 ohm, 2.048 Mbps, HDB3 coding. 0 V.
Back to Menu Serial 2 Connector An 8-way RJ48 socket that provides a general purpose RS422 interface. The pin-out is listed in Table 4-16. The connector has an integral amber indicator that lights when data is being transferred. Table 4-16 Serial 2 Connector Pin-Out (Configured as a RS422 Interface) Pin Signal Characteristics Input or Output Input 1 Data RX A (-) 2 Data RX B (+) RS422/485 differential asynchronous data, 9600 baud, 8 data bits, 1 stop bit, no parity, no handshaking.
Back to Menu E1 Connector An 8-way RJ48 socket marked E1 that is used to connect the radio to a digital voice and data network such as a voice switch or remote controller. The pin-out is listed in Table 4-17. The connector has an integral green indicator that lights when a valid E1 signal is detected. Table 4-17 E1 Connector Pin-Out Pin Signal Characteristics 1 RRing 2 RTip Balanced 120 ohm, 2.048 Mbps, HDB3 coding. Protected with 28 V differential and common mode clamp and a 1.
Back to Menu T1 Connector An 8-way RJ48 socket marked T1 that is used to connect the radio to a digital voice and data network such as a VDL Mode 3 network computer. This connector can also be used to connect a split-site transmitter and receiver together when operating as a VDL Mode 2 base station. The pin-out is listed in Table 4-18. The connector has an integral green indicator that lights when a valid T1 signal is detected.
Back to Menu Ethernet Connector An 8-way RJ48 socket marked Ethernet that is used to connect the radio to a 10/100Base-T ethernet network. The pin-out is listed in Table 4-19. The connector has two integral indicators: Green indicator. Lit indicates 100Base-T; unlit indicates 10Base-T. Amber indicator. Lit indicates a valid link is detected; flashing to indicate link activity.
Back to Menu 10 MHz Reference Frequency The Reference Frequency connector (see Fig 4-4 on page 4-6) is a BNC socket marked 10 MHz. This connector is used to connect an external reference frequency. The applied signal (if used) should be 400 mV rms ± 200 mV. If an external reference frequency is used, the Radio Config Reference Select must be set to ‘External’ as shown in Fig 4-15. Setting up the radio, which includes Radio Config (configuration), is detailed in the Operation topic.
Back to Menu Intentionally Blank M7X and M7R Page 4-34 Installation
Back to Menu Maintenance
Back to Menu Introduction This topic details scheduled and unscheduled maintenance procedures for the M7 radio. Additionally the Data Loader Application (DLA), which is used to set up radios using a PC or laptop instead of the front panel, is described from page 5-39 onwards. The DLA is also used to download software into the radio.
Back to Menu Scheduled Maintenance Park Air recommends that scheduled maintenance be carried out at twelve-monthly intervals. If the radio is operated in harsh conditions, scheduled maintenance may be required more frequently. Scheduled maintenance comprises the following actions: Number Action Tools/Test Equipment Required 1 Ensure the radio is clean and that external connectors are securely fitted. Camel hair brush. Clean lint-free cloths. 2 Check the radio’s internal frequency reference.
Back to Menu Checking the Internal Frequency Reference The radio can operate from an internal frequency reference, or from an external frequency reference connected to the rear panel 10 MHz connector. To set the radio’s internal frequency reference, use the following procedure. (1) Connect a frequency counter to the front panel 10 MHz Reference Frequency Out connector; Fig 5-1.
Back to Menu (4) Using Key 9 and Key 10 to scroll up and down the configuration list, highlight Reference Trim as shown in Fig 5-3. Fig 5-3 Reference Trim Selected (5) Press Key 13 – Change, then use Key 9 and Key 10 to adjust the percentage figure, then press Key 13 – Store. (6) Check the frequency counter display. Keep repeating step (5) until the frequency counter reads as close as possible to exactly 10.000 MHz.
Back to Menu Intentionally Blank M7X and M7R Page 5-6 Maintenance
