CDR-3250/80 TECHNICAL MANUAL
Table 3-5 Radio Command and Status Messages.
Syntax Reply Description
Issue 2.2 3-65
TG? TGnnn
Total Gain Reduction report, requests the amount of total gain reduction
currently in effect. The reply is in the format 'TGnnn' with the characters
nnn replaced with the actual total gain reduction in units of 1/2 dB. This
command is only available over the remote control bus.
V*
Select the ISB Access Mode. The * is replaced with the letter N to select
access to the normal channel (USB) parameters or with the letter A to
select access to the alternate channel (LSB) parameters. ISB Access
Mode affects the following commands:
Y, Y? (AGC Decay)
L, L? (Squelch Level).
There are two different parameter values for each of these commands (for
the two channels of ISB, Normal and Alternate). The current setting of
the ISB Access Mode determines which channel is affected (or reported
on) by the respective radio command or status request. The default ISB
access mode is N (normal channel). This setting applies until the V
command is sent for the first time after power up. This command is not
affected by the setting of the X (local/remote) command.
The ISB Access Mode command also affects the reply to the following
status request commands:
SS? (Signal Strength report)
SA? (Audio Level report)
NOTE: For all modes except ISB, the receiver takes its parameters from the
Normal channel so when changes are desired to affect the above
parameters when the mode is other than ISB (including LSB), the ISB
Access Mode should be set to N (normal). For example, if the current
operating mode is LSB and the ISB Access Mode is set to A (alternate),
sending the L (squelch level) command will have no affect on the current
operation of the receiver. If the mode is subsequently changed to ISB,
The previously set squelch level will be in effect for the alternate (LSB)
output channel.
V?
Request the current ISB access mode.
(cont)
Courtesy of http://BlackRadios.terryo.org
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