Manta CB02, User Manual, Page: 11 / 16

UseR’s MANUAl
11
low level signals are being received, the transceiver may be
operated with vehicle engine turned off. The unit requires
very little current an therefore will not significantly discharge
the vehicle battery.
Even though the supernova radio has an automatic noise
limiter, in some installations, ignition interference and other
forms of automobile generated noise may be high enough
to make good communications difficult. The electrical noise
may come from several sources. Many possibilities exist
and variations between vehicles require different solutions
to reduce the noise. Consult your supernova dealer or a
2-way radio technician for help in locating and correcting
the source of severe noise.
Temporary Mobile Operations
To operate your supernova transceiver from a car on a
temporary basis, you may want to purchase an optional cigar
lighter adapter from your supernova dealer. This adapter and
a magnetic mount antenna allow you to quickly „install” your
transceiver for temporary use.
Operation
Front Panel
1. MICROPHONE connector – Connect the supplied
electric condenser microphone to this connector, and then
lock it via the ring nut.
2. UP KEY – Press this key and channel NO. runs up.
3. DOWN KEY – Press this key channel NO. runs
down.
4. SQ knob – The SQUELCH control allows to silent the
receiver by cutting the background noise. Turn the SQUELCH
knob anticlockwise until the background noise is cut. Rotate
the SQUELCH knob clockwise (SQUELCH ON) to listen to
the weakest signals.
5. RF GAIN knob – This transceiver uses a high sensitivity
and selectivity receiver circuit. The receiver gain is adjustable
with the RF GAIN knob. By rotating the knob anticlockwise,
the receiver gain is reduced. It is convenient to reduce the
receiver gain in case of very strong signals from local sta -
tions. This knob only functions at AM mode.
6. OFF/VOL – This knob controls the radio ON and OFF
as well as adjusts the volume. If no signals are being re -
ceived on the operating channel, it is suggested to turn on
the SQUELCH and adjust the volume to the desired level
while listening to the background noise. When it is turned on
by operating the Volume knob the radio will remember the
channel, frequency, AM or FM used last time.
7. AM/FM mode selector – This switch allows selecting
the modulation mode AM or FM.