Radyne OM20 Specifications download pdf (Page 141)

Appendix B. Carrier Control

B.1 States

The DMD1050 transmitter will turn off the carrier output automatically when the modem

determines there is a major alarm. This is done to prevent the carrier from outputting an

unknown spectrum and possibly disturbing adjacent carriers. This automatic drop of the carrier

can be overridden by masking the alarm that is causing the fault. This will keep the modulator

output spectrum transmitting, even when the fault occurs. The following Carrier Control states

are available:

� Carrier OFF

� Carrier ON

� Carrier AUTO

� Carrier VSAT

� Carrier RTS

B.2 Carrier Off

Modulator output is disabled.

B.3 Carrier On

Modulator output is turned off before reprogramming modulator functions that may alter the

output spectrum through the front panel, and the user is required to enter “Yes” to re-enable

output after the change. When using the terminal, the modulator is turned off while re-

programming modulator functions that may alter the output spectrum, and the user is required to

manually turn on the output after the reprogramming.

B.4 Carrier Auto

MN-DMD1050 B–1

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Radyne OM20 Specifications Page 141