Comtech-ef-data SNM-1000 User Manual download pdf (Page 54)

SNM-1000 Node Control Modem Revision 3

Operation MN/SNM1000.IOM

3–12

3.4.1.2.10 DEMODULATOR:REACQUISITION

REACQUISITION

0 SECONDS

Displays the sweep reacquisition mode time duration. This is the time that the modem

will remain in a narrow sweep after loss of acquisition. After this timer runs out, the

modem will return to the normal acquisition sweep. The reacquisition time is 0 to 999

seconds. Default: 0 seconds

3.4.1.3 CONFIGURATION:INTERFACE

CONFIGURATION

INTERFACE

3.4.1.3.1 INTERFACE:TX CLOCK SOURCE

TX CLOCK SOURCE

SCT (INTERNAL)

Programs the clock source for the modem transmitter clock to the following

configurations:

TX Terrestrial

Sets the TX clock to recover timing from the incoming clock/data.

SCT (INTERNAL)

Sets the TX clock to operate from the modem internal clock (this also is the

fallback clock).

Note: When loop timing is enabled, SCT (LOOP) is displayed instead of

SCT (INTERNAL).

EXT CLOCK

Sets the TX clock to operate from the EXT-CLK clock. Transmit clock source

must be phase/frequency locked to the data that is being transmitted. The

correct frequency must be programmed into EXT-CLK FREQ.

Upon entry, the current TX clock source is displayed. Press [↑ ] or [↓ ] to make the

selection. Press <ENTER> to execute the change.

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Comtech-ef-data SNM-1000 User Manual Page 54