CS-770 GB
8
Intermittent Sound From Speaker
(a)
This could be due to poor battery connections. Ensure they are tight and the batteries are
securely clipped into place.
(b)
Radio transmission from passing taxi or vehicle using radio transmitter equipment.
(c)
Loose speaker, in which case the speaker needs fastening back into place.
The Detector Drifts Out of Tune
(a)
Temperature drift caused by the change in air temperature when a machine is moved from a
house or a car into the open.
(b)
The greater the change in temperature the more the drift, and up to 30 minutes may be needed
for the electronic circuitry to acclimatise itself.
(c)
Sometimes battery drain can cause drift of signal. Replace batteries and this should help to
maintain a stable signal.