User & Installation manual
VHF- Communication Transceiver
Doc.-Nr.:
DE-3000-800100e
KRT2, KRT2M, KRT2RC
Revision 13.0
Jul. 2016
34 / 67
4.6.1 Two PTT Configuration
There are two different PTT assigned for each of the left and right side
microphones. This enables the deactivation of the unused one preventing
additional noise and unintentional talking on transmission.
In case there is just one PTT and multiple headsets in use both the PTT-L
and PTT-R must be tied
together, see chapter “4.4.5 TXm – PTT Switch
4.6.2 Self-Test monitor
Software diagnostics operate continuously in the background in order to
test the system.
The field for battery status & error (see Control Elements Overview) is
used to display warnings and in case of hardware failure, different error
reports will be displayed here.
The warnings are:
BAT
L
ow battery voltage
(becomes active < 10,5V)
At transmission
A-match
Bad antenna match or defective antenna.
Also while transmitting the TX-flag (left top) will change to:
Te
I
f transmission time has exceeded (> 2 minutes)
All other reports starting with Er_
…. Indicating a major hardware failure
and consequently the radio has to be returned to the factory.