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13 Internal Connector
13.2.2.3 COR
Radio to PC
COR stands for Carrier Operated Relay.
The transceiver transmits the COR command
every time the received carrier status changes.
• A carrier is found:
STX + 2 (ASCII) + 1 (ASCII) + ETX
• No carrier is found:
STX + 2 (ASCII) + 0 (ASCII) + ETX
PC to Radio
None
13.2.2.4 TOR
Radio to PC
TOR stands for Tone Operated Relay.
The transceiver transmits the TOR command
every time the QT/DQT Decode status changes.
The transceiver executes the same operation as
the COR when QT/DQT Decode is not
programmed.
• A QT/DQT is found:
STX + 4 (ASCII) + 1 (ASCII) + ETX
• No QT/DQT is found:
STX + 4 (ASCII) + 0 (ASCII) + ETX
PC to Radio
None
13.2.2.5 TX Start
Radio to PC
The transceiver transmits the TX Start command
when it enters the transmitting mode.
STX + A (ASCII) + ETX
PC to Radio
The transceiver transmits when it receives the TX
Start command from the PC.
STX + A (ASCII) + ETX
Note: The transceiver transmits when it receives the TX Start
command from the PC and it starts transmitting the
command.
42
13.2.2.6 TX End
Radio to PC
The transceiver transmits the TX End command
when it enters the receiving mode.
STX + C (ASCII) + ETX
PC to Radio
The transceiver ends the transmission when it
receives the TX End command from the PC.
STX + C (ASCII) + ETX
13.2.2.7 DTMF
Radio to PC
The transceiver transmits the DTMF command
when it decodes the DTMF signal.
STX + I (ASCII) +DTMF Code (ASCII) + ETX
The DTMF Code consists of a maximum of 16
digits.
Example
The transceiver transmits the following
command when it decodes the DTMF signal
"123".
STX + I (ASCII) + 1 (ASCII) + 2 (ASCII) + 3
(ASCII) + ETX
This command is used for decoding the PTT ID
using the DTMF.
The PC displays the transmitting party, using
the DTMF command.
PC to Radio
The transceiver transmits the DTMF Code when
it receives the DTMF command from the PC.
The transceiver automatically stops the
transmission after it ends the DTMF
transmission.
STX + I (ASCII) + DTMF Code (ASCII) + ETX
13.2.2.8 Volume
Radio to PC
The transceiver transmits the Volume command
every time the volume level changes.
STX + K (ASCII) + Level (Hex) + ETX
There are 32 volume levels: 00 (Hex) ~ 1F (Hex)
(1F (Hex) = 31 (Dec)).
PC to Radio
The transceiver changes the volume level when it
receives the volume command from the PC.
STX + K (ASCII) + Level (Hex) + ETX
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