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If a problem occurs ...
If a problem occurs ...
Problem Possible cause Possible solution
Diversity
receiver
cannot be
operated,
“Locked”
appears on
the display
panel
Lock mode is activated Deactivate the lock mode
(see page 13).
No operation
indication
Batteries are flat or
accupack is flat
Replace the batteries or
recharge the accupack
(see page 9).
No RF signal Transmitter and
receiver are not on
the same channel
Set the transmitter and
receiver to the same channel.
Synchronize the transmitter
with the receiver
(see page 30).
Transmission range is
exceeded
Check the squelch threshold
setting (see page 21).
Reduce the distance between
transmitter and receiver.
RF signal is deactivated
(“RF Mute“)
Activate the RF signal
(see the instruction manual
of the transmitter).
RF signal
available, no
audio signal,
“MUTE”
appears on
the display
panel
Transmitter is muted Cancel the muting
(see the instruction manual
of the transmitter).
Receiver’s squelch
threshold is adjusted
too high
Reduce the squelch threshold
setting (see page 21).
Transmitter doesn’t
transmit a pilot tone
Deactivate the pilot tone
evaluation (see page 27).
Audio signal
has a high
level of back-
ground noise
Transmitter sensitivity
is adjusted too low
Adjust the transmitter
sensitivity correctly
(see the instruction manual
of the transmitter).