Sweep Center Frequency; Sweep Width Range - Comtech EF Data SDM-650B Installation And Operation Manual

Remote Control Operation
B.2.4.8.1 Sweep Center Frequency
This command sets the sweep center frequency. During carrier acquisition, the sweep
starts at an offset which is one-half the currently programmed sweep range (SWR_) from
the sweep center frequency. The direction of the offset is determined by the currently
programmed sweep direction (SD_).
The sweep center frequency may be set in the range of +25000 to -25000 Hz.
Command:
Response:
Status Only: <add/SCF_"cr"
Response:
Note: This command is only valid when fast acquisition is enabled. See the "FAM_"
command definition.
B.2.4.8.2 Sweep Width Range
This command sets the overall travel of the sweep during acquisition. The sweep width
may be set in the range of 0 to 50000 Hz.
Command:
Response:
Status Only: <add/SWR_"cr""lf"
Response:
Note: This command is only valid when fast acquisition is enabled. See the "FAM_"
command definition.
B–44
<add/SCF_xnnnnn"cr"
>add/SCF_xnnnnn"cr""lf"]
>add/SCF_xnnnnn"cr""lf"]
Where:
x = + or - (sweep offset direction).
nnnnn = 0 to 25000.
<add/SWR_nnnnn"cr"
>add/SWR_nnnnn"cr""lf"]
>add/SWR_nnnnn"cr""lf"]
Where: nnnnn = 0 to 50000.
SDM-650B Satellite Modem
Rev. 6