Becker Avionics GmbH AR6203 Manual De Usuario
Operating Instructions
Intercom Operation
0638.420-071 Issue 03 July 2015
VHF Transceiver Family 620X
23
In 25 kHz mode, 5 frequency digits are shown. Only operating frequencies
with a channel spacing of 25 kHz are selectable. If 8.33 kHz channels are
not in use, this mode provides the advantage of faster tuning since skipping
the 8.33 kHz frequency steps.
In 8.33 kHz and 25 kHz mixed mode 6 frequency digits are shown. The
transceiver tunes to all possible frequencies within the aviation VHF
frequency band. The channel spacing and operating frequency is derived
automatically from the selected and displayed frequency.
127.0
00
118.000
SQL
127.
00
118.00
SQL
8.33 kHz channel spacing (left) / 25 kHz channel spacing (right)
Toggling between the frequency channel spacing modes is only available
for 620X-(0XX) variants. The 620X-(1XX) variants provide operation in
25 kHz Mode only.
2.9.
Auxiliary Audio Input
The transceiver has a dedicated auxiliary audio input e.g. for MP3 player
connection.
With auxiliary input enabled in installation setup, the auxiliary audio input
With auxiliary input enabled in installation setup, the auxiliary audio input
signal mixing with the received signal from antenna (passing squelch) and
the intercom signal (when activated).
When intercom operates in ISOLATION mode, auxiliary audio input signal
When intercom operates in ISOLATION mode, auxiliary audio input signal
is audible on headphone 2 output, even if radio communication
(transmission/receiving) is active.
AUX AUTO MUTE function depends on the AUX INPUT, selectable via the
AUX AUTO MUTE function depends on the AUX INPUT, selectable via the
CONFIGURATION page in the installation setup. This function
automatically mutes the audio signal from the auxiliary audio input as long
as the AR620X-(XXX) detects (based on squelch evaluation) a RX signal or
the user deactivates the squelch manually. If this function is disabled 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.
Automatic aux attenuation functionality controls the auxiliary audio input.
The level of the auxiliary input signal attenuates if intercom is activated by
VOX or by /IC discrete input. The auxiliary input signal reverts to its
previous value after intercom deactivation. The attenuation value can be
adjusted within the range from 0...40 dB.