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5-10 Troubleshooting
Range ProblemsRange Problems
Range ProblemsRange Problems
Range Problems
Handset voice quality
and range are not as
good as they were
before.
Symptom Possible Causes
Radio modules are out
of synchronization.
A competing radio
device (for example, a
wireless bar-code
scanner) has been
installed in the area.
Both products are
competing for the same
air space and will
conflict when both are
being used.
Possible Solutions
Place the handset in Wireless Test
Mode as described in Chapter 2. If
the signal strength and voice
quality readings are low, look for a
newly installed radio device
nearby. Remove it or move your
handset’s matching radio module
at least 6 feet (1.8 m) away from
the potential interference.
For a single-carrier installation,
power down, then repower the carrier.
For a multiple-carrier installation:
1. Verify that all expansion cables
are installed in the correct IN and
OUT jacks.
2. Verify that all expansion cables
are fully inserted into their jacks.
3. Power down, then repower the
control carrier.
4. Power down, then repower the
expansion carriers in order, from
left to right.
Antenna of the radio
module is too close to
the ceiling.
Reinstall the radio module or
carrier(s) so that the radio module
antenna is 6–12 inches (15.2–30.5
cm) from the ceiling.
You have a malfunc-
tioning radio module.
1. Remove all but one radio module
from the carrier. (See "Removing a
Radio Module from the Carrier" in
Chapter 4.)
2. Test each radio module individu-
ally, verifying that the POWER
and
PASS LEDs on each radio module
light when the carrier is powered.
3. If the PASS LED does not light,
the radio module is malfunctioning.
Replace the radio module and
handset.
(Continued on next
page)