AR6201 - RT6201 - RCU6201 - AR6203
DV 14307.03 Issue 1 7/2013 Page 3-13
3.9.2 Automatic Storage Function
The transceiver contains storage function, which automatically stores 9
recently selected VHF frequencies and updates the last channels database
during operation in standard mode, direct tune mode and scan-mode. To use
this function the STORE LAST CHANNEL option must be enabled in installation
setup on the MEMORY OPTIONS page.
When changing to a new active frequency, the previous active frequency is
stored “LAST” in memory channel CH1. The frequencies previously located in
CH1, CH2 … CH8 are shifted to memory channels CH2, CH3, … , CH9. This
algorithm ensures the last 9 used active frequencies are stored. Last used
frequencies “LAST” can be recalled in channel mode (see chapter 3.5.3).
3.10 Auxiliary Audio Input
The transceiver has a dedicated auxiliary audio input e.g. for MP3 player
connection.
When auxiliary input is enabled in the installation setup, the auxiliary
audio input signal is mixed with the received signal from antenna (passing
squelch) and the intercom signal (when activated).
When intercom works in ISOLATION mode, then auxiliary audio input signal is
provided on headphone 2 output even if radio communication
(transmission/receiving) is active.
AUX AUTO MUTE function depends on the AUX INPUT. It is selected 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 is coupled with 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 to 40dB.
3.11 Intercom Operation
Intercom operation may be triggered automatically via VOX (with adjustable
threshold) or externally via intercom switch. The setting of VOX-threshold
and intercom volume is accessible in the pilot intercom menu, in tandem
configuration on primary controller only.
For a single block, the primary controller is the one directly connected to
VHF transmitter. For a remote VHF transmitter the primary controller is the
one connected to primary control interface.
VOX-threshold and intercom volume for the second intercom circuit is
controlled from secondary controller RCU6201 (secondary controller is the one
connected to secondary control interface).
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