ATR833 / P/N 833-(xxx)-(2xx)
Operation and Installation
12
Document-No.: 01.1403.010.71e / Revision: 3.01
2.4.1 VOL - Volume
Can be reached by a long press of the
SET
button, but is also
automatically chosen by the radio after 12 seconds of user inactivity.
Adjusts the volume of received radio signals by turning the
knob. The higher the value, the louder the reception of radio signals.
ACT
123.450
SBY
118.910
VOL 03
2.4.2 SQL - Squelch
By shortly pressing the
SET
key once, with the help of the
rotary knob the squelch level can be adjusted. (Note: This is not related
in any way to the intercom functionality.)
This is a threshold that has to be exceeded by radio signal levels from
other transmitters, in order to activate the reception circuitry. The higher
the number, the stronger the radio signals have to be in order to be
received.
ACT
123.450
SBY
118.910
SQL 07
The setting for the squelch depends on different factors. For motor
aircrafts an initial higher setting is typically appropriate, gliders may use a
lower value. A lower number means higher input sensitivity. This allows
reception of weaker signals (radio stations at higher distance), but can
also result in pickup of own-aircraft radio interference sources (engine,
strobe lights).
The VOL setting controls the volume of received radio
signals only, not the volume of the intercom or the external
audio input – these are set separately with INT and EXT .
Range: 01 – 16
Range: 01 - 10
