CDR-3250/80 TECHNICAL MANUAL
Table 3-5 Radio Command and Status Messages.
Syntax
Reply
Description
3-58
Issue 2.2
I±1234
Change IF Shift setting. The
±
character represents the sign of the
desired value, and is replaced with either - or +. The digits 1 through 4
represent the value of the IF Shift in Hertz with the character 1
representing the 1 kilohertz digit and the 4 representing the Hertz digit.
The IF Shift setting is only used when the mode is CW. Any changes to
the IF Shift when the mode is not CW will result in an Unrecognized
Command error. (Range: -6000 to +6000 Hz).
I?
Request current IF Shift setting.
K
Cancel. Stops sweep or scan operation and clears all sweep and scan
parameters.
L123
Change the Squelch Level. Digits 1 through 3 represent the significant
figures of the signal level that must be present to open the squelch or to
stop a sweep or scan. This number is in units of 1/2 dB and is implicitly
negative. To convert the desired actual squelch level in dBm, multiply it
by 2. For example, to set a squelch level of -103.5 dBm, send L207.
Changes made with this command are affected by the current ISB Access
Mode. (Range: 0 through 231 representing 0 through -115.5 dBm).
L?
Request current Squelch Level setting.
M*
Change receiver operating Mode.
*
represents a one character code
chosen from the following set:
L
for LSB,
U
for USB,
I
for ISB,
C
for CW,
A
for AM, and
F
for FM. When the mode is changed, some of the other
receiver parameters are set to new values as defaults. If these other
parameters are also being changed, set the new mode first before
changing the other parameters. In addition, CDR-3200 models that include
an FSK detector module will respond to the following mode codes:
V
for
very narrow shift FSK,
N
for narrow shift FSK,
M
for medium shift FSK,
and
W
for wide shift FSK.
M?
Request current mode.
MSGnnmmm
Display message command, clears the display and writes an optional
message in the display. The characters 'nn' are replaced with the count of
characters in the optional message. Both digits are required. The
characters 'mmm' are replaced with the message characters to display. If
blanking only is desired (no message) the command 'MSG00' should be
sent. The maximum message length is 31 characters. When counting
characters, all characters including spaces must be counted. This
command is only available over the remote control bus.
NBIF?
NBIFsnnn
NBIF frequency, requests the current NBIF frequency setting. The reply
syntax is the same as for the NBIF frequency setting command.
Courtesy of http://BlackRadios.terryo.org
