C) Commands
Table 1.2 lists the commands for the 2017-74 and briefly describes them. After a command is sent the 2017-74
sends a return “>” indicating the command has been received and executed.
General Command Format - The general command format is {aaCND...}, where:
{ = start byte
aa = address (RS-485 only option -Q)
C = 1 character, either C (command) or S (status)
N = 1 character command or status request
D = 1 character or more of data (depends on command)
} = stop byte
*
PLEASE NOTE: The two character {aa}(00-31) prefix, in the table below,
should be used ONLY when RS-485, (OPTION-Q), is selected.
Table 1.2 2017-74 Commands
Command
Syntax*
Description
Set Transmitter Frequency
{aaC1xxxxxxx} where:
• xxxxxxx = 7 characters
• Range: 6700000 to 7000000 kHz
Set Transmitter Input Level
{aaCIxx}
where:
• xx = 2 characters
• Range: 10 to 40 (-10 to -40 dBm)
Set Receiver Frequency
{aaC2xxxxxxx} where:
• xxxxxxx = 7 characters
• Range: 4500000 to 4800000 kHz
Set Transmit Gain
{aaC3xx}
where:
• xx = 2 characters
• Range: 0 to +30 (00 dB to 30 dB, in 1 dB steps)
Set Receiver Gain
{aaC4xx}
where:
• xx = 2 characters
• Range: 30 to 50 (30 dB to 50 dB, in 1 dB steps)
Enable Tx
{aaCAx}
where x =:
• 0 to disable Tx signal
• 1 to enable Tx signal
External 10MHz (option -E only)
{aaCEx}
where x =:
• 0 for Internal 10MHz Reference signal
• 1 for External 10MHz Reference signal
• 2 for Auto 10MHz Reference
Reference Offset (option - O only)
{aaC8xxxx}
where xxxx =:
• -2000 to +2000
Enable Remote
#
Just # sign
Disable Remote
{aaCR0}
{CR and zero}
2017-74 Manual, Rev. B
Page 7
10/27/10
