9711-92 Ku-Band TXRX
Maintenance
18-7
18.6.2.
Radio M&C
The RS-232, RS-422, or RS-485 (depending on configuration) Radio M&C signals pass from the BDE computer
through the RF M&C port of the base modem and are modulated and demodulated. These M&C signals are
diplexed with the pedestal M&C signals before passing through to the above decks modem. The pedestal
modem then converts the RF signal back to RS-232/422/485, before routing to the M&C port of the above
decks radio equipment via an interface cable.
18.6.3.
Channel Identification
There are four base frequencies used in the 400MHz FSK modem assemblies:
•
The BDE Modem Transmits Pedestal M&C at 452.5 MHz
•
The BDE Modem Transmits Radio M&C at 447.5 MHz
•
The ADE Modem Transmits Pedestal M&C at 465.0 MHz
•
The ADE Modem Transmits Radio M&C at 460.0 MHz
•
Figure 8 ADE Modem Transmit Frequency Markers
•
Figure 9 BDE Modem Transmit Frequency Markers
Summary of Contents for 9711-92
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Page 10: ...Table of Contents x 22 2 9711 GENERAL DRAWINGS 22 1 This Page Intentionally Left Blank ...
Page 22: ...Site Survey 9711 92 Ku Band TXRX 2 8 This Page Intentionally Left Blank ...
Page 62: ...Basic Setup of the ACU 9711 92 Ku Band TXRX 4 4 This Page Intentionally Left Blank ...
Page 64: ...Setup Ships Gyro Compass 9711 92 Ku Band TXRX 5 2 This Page Intentionally Left Blank ...
Page 66: ...Setup Band Select 9711 92 Ku Band TXRX 6 2 This Page Intentionally Left Blank ...
Page 72: ...Setup Home Flag Offset 9711 92 Ku Band TXRX 8 4 This Page Intentionally Left Blank ...
Page 80: ...Setup Searching 9711 92 Ku Band TXRX 10 6 This Page Intentionally Left Blank ...
Page 100: ...Antenna Specific Operation 9711 92 Ku Band TXRX 15 4 This Page Intentionally Left Blank ...
Page 104: ...Functional Testing 9711 92 Ku Band TXRX 16 4 This Page Intentionally Left Blank ...
Page 120: ...Installation Troubleshooting 9711 92 Ku Band TXRX 17 16 This Page Intentionally Left Blank ...
Page 142: ...Maintenance 9711 92 Ku Band TXRX 18 22 This Page Intentionally Left Blank ...
Page 160: ...Drawings 9711 92 Ku Band TXRX 22 2 This Page Intentionally Left Blank ...
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