8
are provided for camping cooling devices, as these are not stabilized and during open circuit
reach such high voltage levels that your radio set could be destroyed.
In any case, please set the country switch on the rear side to the correct country position
before You plug in the DC cable! Do not change country switch position while radio is still
connected to power supply.
If in base station use it is important to you that the stored stations are kept even 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 set itself.
Never repair a blown fuse (we recommend values between 2 and 5 A) 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 Albrecht’s 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 AE
5290 XL are electronically stabilized, 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 ALBRECHT AE 5290
XL. 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 to
check and adjust the aerial. Tune the aerial to the best standing wave ratio (SWR) on an
intermediate channel e.g. using Channel 1 in 80/40 mode (26.965 MHz) or Channel 20 in all
other modes.
On this channel you should attain a SWR of approx. 1.5 or less. If the SWR deteriorates on
the highest (Channel 40) and lowest (Channel 41) 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 or missing ground. Problems may
be caused through missing ground, especially in boats and motor homes with fiber glass
body. For these cases, Albrecht offers a special connecting cable with matching box as
“artificial ground” (AKM 27, order No. 68440) or use a “groundless” antenna like Albrecht GL
27 (order No. 6351).
Some antennas, like “Gamma II” are broadbanded and do not need any retuning
during installations.
Even if your AE 5290 XL has a particularly robust transmitter high-level
stage which can even withstand mismatching of SWR=3, you should still
never transmit without an antenna!
