Conrad CV Mobil 4200 FM, Инструкция по эксплуатации

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stabilised and during open circuit reach such high voltage levels that your radio set
could be destroyed.
Never repair a blown fuse with silver paper or with aluminium foil! If the fuses
keep blowing, then please give your radio set to your servicing dealer to be
repaired or hand it in to a Conrad or ALAN service station.
The maximum allowed voltage variation for this radio is up to 15.6 volts.
Never exceed this voltage under no circumstances! The transmitting stages
for your CV mobil 4200 FM are electronically stabilised, and therefore it is
impossible to increase output by means of excessive supply voltage. Such
attempts may lead to serious damage to the radio set but will never increase
output power!
Antenna connection
Connect your CB antenna to the ANT socket on the rear side of your CV mobil 4200
FM. Most CB antennas must be tuned to best radiation during installation to give
highest effective communication range. CB specialists do that job with a standing
wave meter (SWR meter) to check and adjust the aerial. Tune the antenna to the
best standing wave ratio (SWR) on an intermediate channel e.g. using Channel 20 or
Channel 9 for truck drivers.
On this channel you should obtain a SWR of approx. 1.5 or less. If the SWR
deteriorates on the highest (Channel 40) and lowest (Channel 1) channels up to a
value of 2.5, then your aerial is still acceptable. SWR above 3 is too bad for good
communication range. A bad SWR may also indicate that there is perhaps an
installation error (often people solder a short circuit into the antenna plug when they
do not check the insulation between inner and outer conductors carefully) or missing
ground. Problems caused through missing ground, happen especially in boats and
motor homes with fiber glass body.
Even if your CB radio has a particularly robust transmitter high-
level stage which can even withstand mismatching of SWR=3, you
should still never transmit without an antenna!
Operation
Before switching on
•
Turn SQUELCH control counter clockwise as far as possible
Switching on and adjusting volume
The on/off switch is combined in the VOLUME control. To switch on: