FSG 90 System
3 Installation
December 2014
FAV_D10024
21
Any operating kinematics, trimming and all control handles must be absolutely free in
all directions.
Ensure the BNC antenna plug is not shortened between inner and outer connector
(Ohmmeter). Resistance 0.0 Ω indicates a short inside antenna connector, while
some 0.6 to 1 Ω indicates the antenna cable resistance, while an internally (static)
protected antenna is used. A simple rod antenna is tested for low resistive contact
between inner cable conductor and radiator, and outer conductor to counter weight.
Check the antenna matching using 50-
Ω SWR meter over the whole frequency range
for SWR < 3:1. It may be helpful or necessary to change slightly the length of the
middle radiator, or counter weight length for optimized antenna efficiency and
matching.
REMEMBER: A good antenna is the best RF amplifier!
Содержание F10185
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