User's Manual

Serial communication protocol
REMOTE No.
EXAMPLE RX
193 RX 0
#
TX
DESCRIPTION Switches the unit to transmit mode (for tuning purposes).
PARAMETERS None (sends an unmodulated carrier), 1 (sends a 1 kHz modulated carrier), 0
(sends a 2 kHz modulated carrier) or 5 (sends a mixed 1 + 2 kHz modulated
carrier).
RETURNS Nothing.
REMARKS The system stops, and exits the command only when a key is pressed. This
command returns no message.
REMOTE No.
EXAMPLE TX
193 TX 0
#
TX 1
193 TX 0
#
TX 5
193 TX 0
#
B
DESCRIPTION Sends a broadcast frame.
PARAMETERS None.
RETURNS A data block.
REMARKS After the device sends the broadcast frame, it will listen for answers. All valid
answers will be listed with their IDs.
REMOTE Yes. A device getting this frame would have to wait for a random time (2 to 10
seconds) before performing the actual broadcast; if no terminal is active, then no
results will be listed. A list of heard stations with their RF levels will be updated in
the memory and available whenever the BLST command is issued.
EXAMPLE B
193 B 0
#234 BA 0
#7851 BA 0
BLST
DESCRIPTION Lists the stations heard after the last broadcast command was issued.
PARAMETERS None.
RETURNS The date and time when the broadcast was performed, the number of stations
heard and a list with the heard stations’ ID and their respective RF levels
(incoming/outgoing pairs, i.e., how the foreign RTU was received and how the
foreign RTU received the broadcasted radio packed).
REMARKS GET only.
REMOTE Yes. The remote version will list only the first 9 stations heard.
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