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B.2.3 modulator configuration commands, B.2.3.2 set rf output, B.2.3.3 set modulator power offset – Comtech EF Data SDM-650B User Manual

Page 212

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Remote Control Operation

SDM-650B Satellite Modem

B–36

Rev. 6

B.2.3 Modulator Configuration Commands

B.2.3.1 Set Modulator Frequency

Command:

Response:

>add/MF_nnn.nnnn”cr”

RF_OFF”cr””lf”]

Status Only: Response:

>add/MF_nnn.nnnn”cr””lf”]

Where: nnn.nnnn = 50.0000 to 90.0000, and 100.0000 to 180.0000 for the
140 MHz modulator.


Note: When modulator frequency is changed, the RF output is switched OFF.

B.2.3.2 Set RF Output

Command:

Response:

>add/RF_xxx”cr””lf”]

Status Only: Response:

>add/RF_xxx”cr””lf”]

Where: xxx = ON or OFF.

B.2.3.3 Set Modulator Power Offset

Command:

Response:

>add/MPO_snn.n”cr””lf”]

Status Only: Response:

>add/MPO_snn.n”cr””lf”]

Where: snn.n = +20.0 to -20.0, in 0.5 dB increments.


Notes:

1. This will be the highest modulator power that will be displayed and programmed.
2. Use the MOP_ command to change the modulator output power.