Comtech EF Data SFC1800A - Manual (Page 119)

SFC1800A Synthesized Frequency Upconverter Appendix B
TM111 – Rev. 1.0 B- 9
C.5 Show Priority Command (B1: 8)
This command returns the priority settings for all 8 of the prime converters. The command is as
follows:
@01/SHOWPRI
The converter will return the following:
Converter 1 2 3 4 5 6 7 8
Priority
a b c d e f g h {abcdefgh = Priority settings for converters 1 - 8
respectively}
{End of transmission}
C.6 Set Current Channel Frequency Command (S, P1:1, P1:8)
This command alters the stored frequency of the current channel. The command is as
follows:
@01/SETFREQffff.t
The frequency numerical values include four digits for MHz and one digit "t" which indicates the
resolution in 125 kHz steps.
The values of "t" are as follows:
t frequency
0 000 kHz
1 125 kHz
2 250 kHz
3 375 kHz
4 500 kHz
5 625 kHz
6 750 kHz
7 875 kHz
Valid frequency ranges are dependant upon device configuration: To see range for current
configuration, send the SETFREQ Command without any data (i.e. “@01SETFREQ”). This
will result in an error message being returned that contains the current freq limits. Frequencies
outside this range or frequencies that are of an invalid form will be responded to by the ‘illegal
frequency’ prompt. If the synthesizer is unable to tune to the desired band and frequency, the
converter will indicate an LO Fault Condition status indication and will change to an off-line or out-
of-service indication.