2-16
Chapter 2: Installation
98-144591-D
2.4.3 Receiver antenna
A passive type antenna is recommended as receiver
antenna. The antenna should be erected well in the
clear and kept away as far as possible from electrical
equipment to minimize noise interference. Electrical
installations such as cable braiding and instruments in the
vicinity of the antenna should be grounded effectively
and the instruments in question should be fi tted with
noise interference suppression devices effective in the
frequency range 0.1 to 30 MHz. The antenna feed-in
shall be by coaxial cable.
It is recommended to provide the installation with an
impedance matching transformer inserted at the antenna.
The matching transformer grounding cable should be
as short as possible and connected to ground through
welded bolt.
Recommended type of antenna is a 6 to 10 meter whip
antenna.
Passive RX antenna
TX antenna
Example of possible MF/HF antenna placements with a passive RX antenna.
Antennas
50-60 cm
Coaxial feed
Ground wire
Welded bolt
(illustration refers to
the KUM600-2 antenna)
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