Albrecht AE 6690 Bedienungsanleitung Seite 23

you use a car battery charger, as these are not stabilised and during open circuit reach such high
voltage levels that your radio set could be destroyed.
If in base station use it may be important to keep the last setting after switching off and on again,
then please do not switch the external power supply power unit off when you switch your set off for
a short time. Only use the on/off switch on the transceiver itself.
Never repair a blown fuse with silver paper or with aluminium foil! Use only original fuses
for 2-5 A max. If the fuses keep blowing, then please give your radio set to your servicing
dealer to be repaired or hand it in to an authorized service station.
The maximum allowed voltage variation for this radio is from 10.8 volts up to 15.6 volts.
Never exceed the upper voltage limit under no circumstances! The transmitting stages for
your AE 6690 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!
Inctructions especially for truckers and motor home users:
The permitted operating-voltage of the radio may vary from 10.8 to 15.6 V, so between
these to values the performance data of the radio do not change. The transmitting levels of
your AE 6690 are electronically stabilised. So an increasing of the performance by using
an excessive operating-voltage is impossible. With such methods you only risk damaging
your radio, but not an increased performance! Truckers should take care of never
connecting their radio directly to 24 Volt. At 24 volt you need a suitable voltage converter
from 24 Volt to 12 Volt. As in trucks often voltage converters are already installed, e.g. for
mobile phones, TV, car radio, you can calculate the power consumption with ca. 1,5 to 2
A. The extremely compact and low-loss switching power converters with CE or "e" mark
are interference suppressed for "normal" car-electricity consumers like radios, refrigerator
boxes or coffee machines, but this normally has not enough interference suppression for
an undisturbed CB reception quality, as CB radios have supersensitive receivers
compared to other devices. For a noise-free CB-reception in vehicles with converters and
/or board computers we cannot give any guarantee.
Problems cannot be eliminated in all cases without trial and error. It is important, that the
antenna is installed as far away as possible from other antenna and from the converter
wiring and that it has a good ground area. In contrary to mobile phone- and radio antennas
the normal CB antennas cannot be installed on plastic surfaces, except they have a metal
foil underneath. A good antenna ground is very important. In case the truck has a metal
mirror mount, the antenna foot can be installed there by using an angle bracket mount, but
not e.g. on a clear plastic roof or -wind deflector. Is there no possibility to install the
antenna on a conductible underground, we offer special ground free CB mobile antennas
like the GL 27.
Use with a 230V power supply at home
Use your CB radio at home only with a special CB radio power supply with stabilisation,
which delivers min. 1,5 – 2 Ampere at 12 – 13,8 Volt constant voltage. A good and suitable
power supply would be a power supply with order-nr. 4744 from ALBRECHT. Unstabilised
power supplies, charger for car batteries or the popular cooling bag - power supplies are
unqualified for radio and must not be used. Power supplies with "switching technology" can
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