otherwise a part of the transmit power will be reflected
at the antenna and will not be radiated. This reduces
the range of operation. The configuration of an antenna
to a radio, is performed by a length adjustment of the
antenna’s radial for a minimal SWR ratio which can be
measured by a SWR meter, e.g. Maas KCB-3000. After
the measurement the SWR meter should be removed
from the antenna line.
■
Installation in the car
When you want to install the radio in your vehicle, use
either the included underdash or radio compartment
mounting kit. Always mount the transceiver in a location
where the buttons are easily accessible. Other impor-
tant points to consider for a correct mounting position
are:
• roadworthiness,
• good access to the controls of the car,
• sufficient air circulation to prevent overheating of the
radio in transmit mode.
Please consider your point of view onto the display
while driving. Starting extensive solar irradiation can
also affect the readability of the display. So it is recom-
mended to check the best position before the final fi-
xing.
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Power source
Before connecting the unit to a suitable power source
via the fused DC power cable, the device must be swit-
ched off by turning the volume control [VO ] counter-
clockwise to the very end, beyond the threshold, until
you hear a click. Then connect the two naked leads at
the end of the cable with the supply voltage of the ve-
hicle’s battery. The unit is designed to operate with 12
V or 24 V and a negative ground electrical system.
Place the cable as far as possible away from aggrega-
tes which can cause interferences. Watch for the cor-
rect polarity during the connection.
BLACK connect to - MINUS (ground) of the car battery.
RED connect to the + PLUS of the vehicle’s battery.
After proper connection of the antenna and the power
source radio operation can be started.
PREPARATIONS FOR OPERATION
5
