AR6201 - RT6201 - RCU6201 - AR6203
Page 3-18 DV 14307.03 Issue 1 7/2013
By turning the “ROTARY ENCODER” the squelch threshold can be adjusted:
• from 6 (very weak signals are audible with high noise content; squelch
opens at about -105 dBm)
• to 26 (only quite strong signals are audible with low noise content;
Squelch opens at about -87 dBm).
3.14 Warning and Failure Indications
Display Contents Description
Reappear every 3 seconds.
“LOW BATT” is indicated if the supply voltage
of the transceiver is below the threshold
defined in the installation 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
Reappear every 3 seconds.
“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).
Reappear every 3 seconds.
“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.
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