126 Transceivers 6200 Series DV14307.03 Issue 06 February 2021
3.4 Receive Mode
• If PTT (Push To Talk) inputs are inactive, the transceiver stays in receive
mode.
• A mixed signal is supplied on the headphone(s) outputs (if enabled), it is
mixed of the:
o Received signal from antenna.
o Intercom signal from intercom circuit one and two.
o Signal from auxiliary input.
• A mixed signal is supplied on the speaker output (if enabled), it is mixed of
the:
o Received signal from antenna.
o Signal from auxiliary input.
• The signal from the auxiliary input is muted under certain conditions
(for details refer to "Auxiliary Audio Input", page 135).
• The signal from intercom is muted under certain conditions
(for details refer to "Intercom Operation", page 136).
3.5 Transmit Mode
• If PTT input is started (Push To Talk key
is pushed) the transceiver is set to
transmit mode.
o The microphone(s) signals can modulate the transmitter.
o The PTT 1 input starts transmission from microphone path 1.
o The PTT 2 input starts transmission from microphone path 2.
o If "BOTH MIKES" are enabled in the configuration setup*, each input
(PTT 1 or 2) can start the transmission from both microphone paths at
the same time.
• The "TX" symbol shows that the device is in transmit mode.
• The sidetone (demodulated audio of the emitted signal) is available on the
headphone output.
• The transmit mode automatically deactivates the speaker.
* (Details see "Configuration Setup" page 69).
• In transmit mode some user actions are blocked e.g. change the frequency
selecting mode or channel spacing mode, which are normally permitted in
receive mode.
• Changes in standard mode e.g. the "Preset" frequency are possible even
during transmission.
• In transmit mode is no intercom operation possible.
• The transmit mode is automatically terminated (return to receive mode) after
120 s of continuous transmitting.
o The display shows "STUCK PTT", see "Warning and Failure Indications",
page 140.
o For the start of a new transmission first it is necessary to set the /PTT
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