Comtech EF Data SDM-650B - Manual (Page 317)

SDM-650B Satellite Modem Trojan Interface
Rev. 5 G–21
G.6.4.1.3.2 Select Modulator Rate
Command: <add/SMRx_”cr”
Response: >add/SMRx_”cr”
RF_OFF”cr””lf”]
Status Only: (See the MR command.)
Where: x = A, B, C, or D (Filter designator).
Notes:
1. Setting the modulator turns OFF the RF transmitter.
2. If the modem is commanded to a filter (rate) which is not assigned (N/A), the
error 2 message will be returned.
G.6.4.1.3.3 Select Modulator Rate Variable
Note: This command is only applicable for the variable rate option.
Command: <add/SMRV_nnn_mmmm.m”cr”
Response: >add/SMRV_nnn_mmmm.m”cr””lf”]
RF_OFF”cr””lf”]
Status Only: (See the MR command.)
Where:
nnn = 1/2, 3/4, 7/8, or BP12 (Coder rate).
mmmm.m = 9.6 to 4080.0 (Data rate).
Note: Setting the modulator turns OFF the RF transmitter.
G.6.4.1.3.4 Set Modulator Power Offset
Command: <add/MPO_snn.n”cr”
Response: >add/MPO_snn.n”cr””lf”]
Status Only: <add/MPO_”cr”
Response:
>add/MPO_snn.n”cr””lf”]
Where: snn.n = +20.0 to -20.0, in 0.5 dB increments.
Note: This will be the highest modulator power that will be displayed and programmed.
Use the “MOP_” command to actually change the modulator output power.