136 Transceivers 6200 Series DV14307.03 Issue 06 February 2021
o The signal from the auxiliary audio input is permanently audible on the audio
output, independently of the received signal or the squelch status.
• Automatic aux attenuation functionality controls the auxiliary audio input.
o The level of the auxiliary input signal attenuates if intercom is started by VOX or by
/IC discrete input.
o After intercom deactivation, the auxiliary input signal changes to its value before.
o The attenuation value can be adjusted.
* Details see "Configuration Setup" page 69.
3.11 Intercom Operation
The intercom operation can be started automatically with VOX (with adjustable threshold) or externally
with an intercom switch.
• If intercom operation is started, the "IC" symbol appears in the display.
• The intercom volume and the VOX threshold is adjustable in the intercom
menu.
Details see "Intercom Menu" page 139.
Pilot Circuit and Passenger Circuit
• The transceiver has two internal intercom circuits.
• Up to four headsets are connectable.
• The pilot and co-pilot are connected to the first intercom circuit.
o When intercom is active, both microphone signals are mixed and amplified.
o The signal is audible on both headphone outputs.
o The internal communication with headsets between both pilots is possible.
• The passenger headsets are connected to the second intercom circuit.
• ALL mode - Everyone connected to the intercom hear all communications.
o Pilots hear passengers and passengers hear pilots.
• ISOL mode - Isolated intercoms for the pilots (intercom circuit 1) and the passengers
(intercom circuit 2).
o This lets pilots communicate with each other and air traffic, while the passengers are
isolated.
o The passengers on the intercom circuit 2 can hear auxiliary audio (e.g. from
MP3 player) and can communicate with each other.
• An external ISOL input gives the possibility to change between ALL mode and
ISOL mode.
• If the PTT1 input is started and ISOL is active the passenger intercom operation on
second intercom circuit is still possible.
Intercom Operation started with VOX
• The intercom operation can be started automatically with VOX.
• The VOX threshold is adjustable in the intercom menu.
o In tandem installations (application with additional controller) make
the adjustments on the primary controller.
o In tandem installations with a second intercom circuit make the
adjustments for the second circuit on the secondary controller.
To Next Page
Loading...
