AR6201 - RT6201 - RCU6201 - AR6203
Page 3-14 DV 14307.03 Issue 1 7/2013
The transceiver has two internal built in intercom circuits. Therefore up to
four headsets can be connected. On the first intercom circuit the pilot and
copilot are connected. When the intercom is activated the signals from the
microphones are mixed and amplified to become audible on both headphone
outputs. This enables internal communication via headsets between both
pilots. On the second intercom circuit passengers can be connected.
ALL mode - Everyone connected to the intercom will hear all communications
(pilots hear passengers and passengers hear pilots).
ISOL mode - Provides separate intercoms for the pilots (intercom circuit one)
and the passengers (intercom circuit two). This allows pilots to communicate
with each other, and air traffic, while the passengers are isolated. The
passengers on the intercom circuit two can hear auxiliary audio (for example
from mp3 player) and can communicate with each other.
External “ISOL” input provides possibility to switch between ALL mode and
ISOL mode. If the /PTT1 input is active and ISOL is active the passenger
intercom operation on second intercom circuit is still possible.
In transmission mode intercom operation is degraded. During receive mode the
intercom operation may be activated automatically via VOX (with adjustable
threshold) or using the external intercom switch.
If intercom operation is active the “IC” sign is displayed.
Activation of Intercom Operation via VOX
Via VOX intercom operation is automatically activated (threshold adjustable
in the intercom menu). With additional RCU6201 VOX threshold for first
intercom circuit is adjustable from primary controller (AR620X or RCU6201)
and for second intercom circuit from second controller RCU6201.
Intercom activation via VOX is not possible if:
• Speaker is enabled (see next chapter)
• User switched the VOX off
In both cases the VOX is disabled and the display shows the
sign to
indicate that activation via VOX is not possible.
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