Codan 2110 series User Manual

Using the 9350 Automatic Tuning Whip Antenna with a 2110 Manpack Transceiver
60 Manpack Transceiver 2110 series Reference Manual
Troubleshooting the installation
Common problems caused by incorrect installation are listed in Table 18.
WARNING
Before using the antenna system see the safety information provided on
page 491, Radiation safety.
WARNING
Poor installation can damage the antenna such that a replacement is
needed.
Table 18: Possible faults in the installation
Symptoms Possible causes Action
Antenna fails to tune
certain channels or
frequencies
The antenna may not
be earthed correctly
Improve the earth connection (see page 48, Grounding
the antenna).
Ensure a good earth connection to the vehicle body is
provided by an earth braid or copper strap, keeping it as
short as possible.
Check the vehicle earth on metal areas close to the
antenna and rectify if necessary, for example, the bonnet
of the vehicle may be isolated from the main vehicle
earth.
If the problem persists, shorten or lengthen the coaxial
cable between the antenna and the transceiver by
approximately 1 m (1 yd). Check that the problem does
not move to other channels.
The antenna may have
been tuned without
the whip in place
Ensure the whip is in place before tuning.
Antenna tunes when
stationary, but fails
when mobile
Incorrect positioning
of the antenna on the
vehicle
Ensure correct installation and tuning procedures are
followed.
With an SWR meter in place, alter the position of the
antenna to achieve best forward-radiated power (see
page 63, Standing wave ratio). Carry out all testing in the
open, away from trees and buildings etc. Leaning the
antenna away from the bodywork sometimes assists in
tuning. Check that the problem does not move to other
channels.
Distortion of the
transmit audio signal
Inadequate earthing of
the transceiver to the
vehicle chassis
Improve the earth of the transceiver by connecting an
earthing strap (braid or copper strip) from the earth screw
of the transceiver to the vehicle chassis, keeping the strap
as short as possible.

Codan 2110 series Specifications

General

Brand	Codan
Model	2110 series
Category	Transceiver
Language	English