Becker 0622.834-923, Installation And Operation Manual

Page: 38 / 52

Operating Instructions
Menus
38 GK61X-XX DV16800.03 Issue 03 08/2015
Intercom Volume Menu
The active frequency is indicated in the top line of the display, the "IC VOLUME" label and a bar graph
with numerical value are show in the bottom line.
IC VOLUME
40
IC
118.005
By means of the "ROTARY ENCODER", the intercom volume is changeable from zero to 46. The
intercom volume setting affects the intercom audio and sidetone signal, routed to the headphone.
The changes become active immediately.
Intercom VOX Menu
The active frequency is indicated in the top line of the display, the "IC VOX" label and a bar graph with
numerical value are shown in the bottom line.
IC VOX
6
IC
118.005
By means of the "ROTARY ENCODER" the intercom VOX threshold can be changed from -30 (most
sensitive, even a very low microphone signal already triggers the VOX threshold for Intercom
operation) to +10 (VOX is less sensitive and only high microphone signals trigger the VOX threshold
for intercom operation).
Note: At a setting for VOX threshold of -15 a convenient behaviour of the VOX should
be achieved in most aircraft. This requires that mike sensitivity had been correct
adjusted (installation setup). If the mike sensitivity is incorrect adjusted, VOX
may not work satisfying.
By changing VOX threshold level to above +10, VOX switches "OFF". In this case, "OFF" replaces the
numerical value indication.
The changes become active immediately.
IC VOX
OFF
IC
118.005
With VOX switched "OFF", activation of intercom operation using the external intercom switch (/IC
discrete input) is still possible at any time. The VOX threshold level is not adjustable if VOX forced to
be "OFF" (due to enabled speaker in current audio configuration).
In tandem installation the "first" controller adjust VOX threshold for first intercom circuit, and the
second controller RCU6201 adjust VOX threshold for second intercom circuit.