ATR833A / P/N 833A-(xxx)-(1xx)
Operation and Installation
21
Dokument-Nr.: 01.1411.010.71e / Revision: 3.00
In order to have an audible distinction between receptions on the active
and the standby frequency, it is possible to have the volume of the
receptions from the standby frequency with a lower volume. Please refer
to chapter 2.4.5 for information onto this feature “dual watch mute”.
Quick approach:
Select or enter a standby frequency which should be additionally
monitored.
Set SQL with the
key and the
rotary knob to a value of at
least 02.
Activate dual watch with
(DW is shown)
As soon as no reception is determined on the activate frequency, the
mutual monitoring between active and standby frequency starts.
In order to deactivate dual watch: press
once more or change the
frequency.
For dual watch, the squelch must be set to a value of 02 at
least, as without proper squelch functionality the radio would
not be able to detect whether on the active frequency a
reception takes place.
Don’t forget to interchange the active and standby
frequencies, before answering a call on the standby
frequency.
Using dual-watch requires switching between the active and
the standby frequency. Therefore it may happen that calls on
the active frequency cannot be monitored completely. As the
result we recommend not to use dual-watch in airspaces
where listening watch is required.
