ATR833S / P/N 833S-(Cxxx)-(Cxxx)
Operation and Installation
22
Document-Nr.: 01.142.010.71e / Revision:1.03
2.8 Dual Watch Modus
The ATR833S comprises one receiver; therefore DUAL-Watch
(simultaneously monitoring two frequencies) is implemented by
alternating automatically between the active and the standby frequency.
With dual watch mode active, the standby frequency is tuned in, very
briefly interrupted in regular intervals by the set auto-tuning to the active
frequency for a fraction of a second.
Every radio signal then detected on the active frequency has priority, and
pauses the dual watch monitoring of the standby frequency, as long as
the reception/transmission continues on the active frequency.
Transmissions are always done on the active frequency.
The dual watch mode is activated by pressing
DW
, and is indicated by a
#
symbol in front of the standby frequency.
The dual watch mode is deactivated by pressing
DW
again, and by any
operations changing either of the frequencies.
In order to have an audible distinction between receptions on the active
and the standby frequency, it is possible to hear the receptions from the
standby frequency with a lower volume. Please refer to chapter 3.4. for
information about the feature “dual watch volume reduction”.
SQL has to be set to 01 at least, as without adequate
squelch functionality the radio is not able to detect if there is
a reception on the active frequency.
