Operating Instructions
Warning and Failure Indications
DV14307.03 Issue 04 March 2016 Transceiver Family 620X 113
3.13. Warning and Failure Indications
Appear in 3-second cycle
"LOW BATT" is indicated if the supply voltage of the transceiver is
below the threshold defined in the configuration setup.
The transceiver is still operable but may have a reduced performance
depending on supply voltage.
Possible reasons for indication:
Accumulator capacity problems (gliders),
Power interrupts,
General power supply problems,
Setting for low battery threshold too high
Appear in 3-second cycle
"STUCK PTT" is indicated after 120 seconds of continued
transmission. The transceiver goes back to receive mode even if the
PTT line is still active (GND).
For initiating a new transmission, the PTT line needs first to become
inactive (open).
Possible reasons for indication:
Transmission lasts more than 120 seconds.
PTT-key is stuck.
PTT line permanently grounded (short circuit in installation).
Appear in 3-second cycle
"TX HOT" is indicated if the internal device temperature exceeds
+90 °C.
Transceiver is still operable. Performance of transmitter is reduced.
Possible reasons for indication:
Very hot environmental temperature, long transmissions times and
insufficient airflow conditions.
Appear in 3-second cycle
The transceiver has detected an internal failure during normal
operation.
Depending on failure reason, the device may still be operable with
degraded performance, or not operable at all.
Possible reasons for indication:
Specified environmental conditions
HW or SW failure inside the transceiver.
Contact maintenance shop for assistance.
The transceiver has detected an internal failure during start up.
Depending on failure reason, the device may be still operable with
degraded performance or not operable at all.
Possible reasons for indication:
Outside specified environmental conditions
HW or SW failure inside the transceiver.
Contact maintenance shop for assistance.
The transceiver has no communication with the controller.
Depending on failure reason, the device may be still operable with
degraded performance or not operable at all.
Possible reasons for indication:
Problem with inter-wiring
Contact maintenance shop for assistance.