Becker Avionics GmbH AR6203 Manual De Usuario
Operating Instructions
Receive and Transmit Mode
12
VHF Transceiver Family 620X
0638.420-071 Issue 03 July 2015
2.3.
Start-Up
Excessive pulses on the DC bus of the aircraft may
cause damage on electrical circuits of any installed
instrument.
Do not switch ON the device during engine start or
shutdown
•
Turn "ON" the device by turning the volume knob clockwise.
•
During PBIT (Power-On Built In Test) the display indicates the
message "WAIT", the software version of "Control Head" (CH)
and the software version of "Chassis Module" (CM).
•
If the PBIT has detected error(s),"FAILURE" appears on the
display (for details see page 30).
2.4.
Receive and Transmit Mode
2.4.1.
Receive Mode
If /PTT1 and /PTT2 (Push To Talk) inputs are inactive, the transceiver
remains in receive mode.
In receive mode the headphone(s) outputs (if enabled) provide a mixed
In receive mode the headphone(s) outputs (if enabled) provide a mixed
signal consisting of:
•
Received signal from antenna,
•
Intercom signal from intercom circuit one and two,
•
Signal from auxiliary input.
In receive mode the speaker output (if enabled) provides a mixed signal
consisting of:
•
Received signal from antenna
•
Signal from auxiliary input
The signal from the auxiliary input been muted under certain conditions
(For details refer to "Intercom Operation", page 24).
The signal from intercom can be attenuated, or muted, under certain
The signal from intercom can be attenuated, or muted, under certain
conditions (For details refer to "VOX & Speaker Operation", page 26).
2.4.2.
Transmit Mode
If /PTT input is active (PTT=Push To Talk key is pressed) the transceiver
switches to transmit mode. Microphone(s) signals can modulate the
transmitter.