Installation manual

User & Installation manual
VHF- Communication Transceiver
Doc.-Nr:
DE-3000-800100e
KRT2 & KRT 2A
Revision 4.0
17 of 45
For engine driven airplanes an initial setting of 05-08 is recommended.
Gliders may need a lower setting. The lower the Squelch level value the
higher is the input sensitivity. A high sensitivity setting is susceptible to
noise from other sources like ignition strobe-lights etc.
Standard SQ-level is 05 ... 08. Higher setting may
suppress strong input signals. Squelch does not influence
the intercom system.
3.4.3. VOX – Intercom Voice Trigger Level Setting
Pressing the AUD button twice enables the turning knob to change the voice
level which triggers the intercom.
The intercom voice trigger level must be set to such a value which
prevents that normal cockpit noise can be heard in the earphones. The
intercom system shall only be activated when talking at a normal
voice level into the microphone.
The higher the trigger level the louder the voice must be in order to
trigger the intercom system.
VOXnn Range: 01 – 10
In case of extreme cockpit noise or uncompensated microphones the VOX
system can be deactivated by selecting VOX: 01. When VOX is
deactivated, the intercom can only be used by means of intercom
switches.
3.4.4. TXm – PTT Switch Selection
Pressing the AUD button three times enables the turning knob to select
certain PTT switches. In addition when one of both PTT switches is disabled
(not-Both) the respective microphone channel is disabled during trans-
missions.
TXm** *
- Left / -
*
Right /
**
Both