Sweep Direction; Modem Operation Mode; Buffer Control Mode - Comtech EF Data SDM-650B Installation And Operation Manual

Remote Control Operation
B.1.3.22.3 Sweep Direction
This command sets the direction of the sweep travel. "+" sets incremental sweep, while
"-" sets decremental sweep.
Command:
Response:
Status Only: <add/SD_"cr""lf"]
Response:
Note: This command is only valid when fast acquisition is enabled. See the "FAM_"
command definition.
B.1.3.23 Modem Operation Mode
This command configures the modem for simplex or duplex operation modes. When
transmit-only mode is selected, receive faults are inhibited. When receive-only mode is
selected, transmit faults are inhibited.
Command:
Response:
Status Only: <add/MOM_"cr"
Response:
B.1.3.24 Buffer Control Mode
This command is used to enable or disable M&C buffer control.
Command:
Response:
Status Only: <add/BUFF_"cr"
Response:
Note: For optional Doppler buffer only.
B–16
<add/SD_s"cr""lf"]
>add/SD_s"cr""lf"]
>add/SD_s"cr""lf"]
Where: s = + or - (direction of sweep travel during acquisition).
<add/MOM_xxxxxxx"cr"
>add/MOM_xxxxxxx"cr""lf"]
>add/MOM_xxxxxxx"cr""lf"]
Where: xxxxxxx = TX_ONLY, RX_ONLY, or DUPLEX.
<add/BUFF_xxx"cr"
>add/BUFF_xxx"cr""lf"]
>add/BUFF_xxx"cr""lf"]
Where: xxx = ON or OFF (OFF disables Buffer Clock, Buffer Center, and Buffer Size).
SDM-650B Satellite Modem
Rev. 6