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4 GENERAL
The following section is a guide for individual types of aircraft installations.
4.1 Sailplanes
Due to the inherent space restriction on most glider instrument panels the FL-760A’s 57-mm front
panel makes it an excellent choice for confined spaces. Generally the radio is mounted at the
bottom of the panel with essential instruments at the top. Location of the ancillary switches
should be convenient to the pilot.
The Press to Talk (PTT) can be a normally open push-button located on the control column or a
handheld microphone.
Speakers are normally located at the rear of the pilot’s head.
If not using a handheld microphone, then a boom mike with an electret microphone is preferred.
If this radio is to be installed in a motor glider then ensure that the ignition leads are shielded.
This will reduce ignition noise considerably. The FL-760A has noise limiting circuitry incorporated
and works well in most cases but two stroke interference can be difficult to suppress.
4.2 Ultralight
Most ultralights like sailplanes suffer from space restriction. Locate the transceiver with a good
viewing angle. Ensure that it is protected from rain (No liability is accepted for water damage).
Use shielded aviation quality wire for the headphones, microphone, and speaker.
As nearly all Ultralights use two-stroke engines ignition noise can be a problem. Again ensure
that all engine high voltage cabling is shielded and grounded. There is almost certainly some
background ignition noise with these engines, however, the FL-760A noise limiter will eliminate
nearly all of the noise (except for levels around 5 uV).
In tandem or side by side seating, use of the intercom provided will work well providing you switch
it on. The intercom uses the side-tone feature of the radio and therefore may pick-up some
ambient noise.
Another feature is the fitting of the external memory toggle switch which when fitted (normally on
the control column) allows the pilot to scroll through the memory channels and select scan without
reaching for the main channel controls on the radio. This is particularly useful for the rear pilot or
instructor in tandem Ultralights or for Helicopter/Gyroplane pilots.
4.3 Microlight / Home built / G.A.
In general the same as for ultralights with particular care taken for ignition screening and
exposure to rain.
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