CDR-3250/80 TECHNICAL MANUAL
Table 3-5 Radio Command and Status Messages.
Syntax Reply Description
Issue 2.2 3-63
T#
Set the Special Step Mode. This command is used to change the
operation of the receiver when sweeping. The receiver outputs signal
strength data characterizing the sweep. The manner in which the
operation is changed depends on the character that replaces the # as
follows:
NOTE: This mode is not accessible from the front panel menus.
0 Cancel Special Step Mode. Sweep returns to normal operation. This is
the default condition at power up.
1 Reserved.
2 Set Pan Sweep "one-sweep" data collection mode. In this mode the
sweep function is modified to collect signal strength data from the
frequencies setup in the sweep. The receiver does not stop when
signals are detected above the squelch threshold. At the end of one
sweep the receiver stops sweeping and a block of signal strength data
is made available at the remote control interface. The TB? command
will then cause the receiver to send this data block to the remote
controller.
3 Set Pan Sweep "free run" data collection mode. This mode is the same
as the one-sweep mode (T2) except that the receiver does not stop
sweeping when one sweep has been completed. The receiver
continues to sweep and each new sweep's data replaces the previous
sweep data in the output queue. When requesting a data block in this
mode the receiver always responds with the most recent sweep data.
4 Set Pan Sweep "buffered" data collection mode. This mode is the same
as the free run mode (T3) except that the output queue keeps up to 5
blocks of sweep data available for sending to the controller. When a
request command (TB?) is sent by the controller, the receiver will
transmit the oldest data block that has not already been sent. If more
than 5 sweeps have been completed before the queue has been read
by the controller, the oldest data blocks are overwritten. In this way
the 5 most recent unread blocks are always maintained. The block
sequence number that is part of the returned data block message may
be used to detect queue overrun.
NOTE: Due to buffer size and sweep time considerations, the number of
frequencies that will be allowed with the sweep command (SW###) when
any of the Pan Sweep modes is in effect is limited. If this limit is exceeded,
the receiver will respond to the SW### command with IE:IVAL.
T?
1
Request the current Special Step Mode setting.
Courtesy of http://BlackRadios.terryo.org
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