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Comtech EF Data CDM-760 User Manual

Page 90

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Front Panel Operation

Revision 2

CDM-760 Advanced High-Speed Trunking Modem

MN-CDM760

6–4

6.1.3.1 Opening Screen

The opening screen appears when you first apply power to the unit:

Comtech CDM-760 Advanced High-Speed

Trunking Modem ver. X.X.X

This screen identifies the product and the version number of the installed firmware (e.g., ver.

1.4.1).

From the opening screen, press any key to display the top-level SELECT: (main) menu. To return

to the opening screen from anywhere in the menus, press the CLEAR key repeatedly.

6.1.3.2 Screen Saver

The screen saver protects the VFD from possible image burn-in. After one hour of showing the

same screen, the screen saver activates:

Circuit ID: ---------------------------

Demodulator not locked CnC is OFF Press an

The screen saver message moves from right to left across the screen, and then repeats. The top

line shows the user-definable Circuit ID. The bottom line shows the demodulator lock status

message

1

6.1.3.3 Cursor Behavior

and CnC status, followed by the

Press any key....

prompt. Press any key to

return to the previous menu.

On most menu screens a flashing block cursor blinks at the rate of once per second. This cursor

shows the selected parameter, number, or field.

Freq: 200.0000 MHz

()

If a block cursor would obscure a selected parameter, the block cursor becomes an underline

cursor automatically.

Freq:1200.0000 MHz

()

1

either

Demodulator not locked or the circuit Eb/No value when the demodulator is locked