HF-90 Operation & Installation Guide
Minimising engine interference
Correct grounding will go a long way toward
minimising engine interference.
Q-MAC can also provide an interference suppression
kit which further reduces the likelihood of engine
interference.
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Section 8.2
When using the TA-90 autotune system ensure that;
the whip antenna is undamaged, the white antenna
insulator is clean and undamaged, the red wire
feeding the top of the insulator is clear of metalwork
by at least 50mm and that the ground connection to
the TA-90 Tuner is adequate.
When using a tapped whip antenna always ensure
that the tap selected corresponds to the channel/
frequency in use on your HF-90 radio (usually the
channel/frequency is engraved next to the tap). In
addition, the excess portion of the wander lead
should be wrapped tightly around the antenna.
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