DISTRIBUTORS, INC.
Q: I fly a single seat airplane and don’t need the internal intercom function. Can I deactivate it?
A:
YES. Go to the Setup Mode (hold down the MOD button while powering on the radio) and find
the VOX adjustment screen. The adjustment range is 0-24 or OFF. Select OFF. This will
deactivate the ICS that is not needed in a single seat aircraft.
Q: I fly a two seat, open cockpit aircraft and it is too noisy for the VOX ICS to be used effectively.
A:
You will probably want to activate the intercom via a PTT method rather than using VOX. To do
this, follow the Setup steps in the FAQ above to turn the VOX function OFF. Then wire a
momentary switch in a convenient place in the cockpit (yoke, stick or on the panel near the radio).
This will be your ICS activation button. You simply connect one side of the switch to Pin 5 labeled
“Intercom (Ground to Activate)” and the other side to Ground. When the button is pushed, it
provides a ground trigger to Pin 5 that activates the Sidetone/ICS amplifier in the radio and
provides intercom audio as long as the button is pushed. In a side-by-side, two place aircraft, a
single momentary switch on the panel labeled “ICS TALK” would work. In a tandem aircraft you
would need a switch at each seat location with both switches wired to Pin 5 on one side and the
other side to aircraft ground.
Q: I have a 4plc airplane and don’t plan to use the built in 2plc Intercom in the FL-760A. Instead,
I am going to wire in a third party, stand-alone, 4plc ICS or use the 4plc ICS that is integrated
into my chosen audio panel. Is the FL-760A compatible with this scenario??
A:
Yes – simply follow the Setup steps in one of the FAQ’s above to turn the VOX function OFF and
don’t wire anything up to Pin 5 on the FL-760A and then just follow the MFR’s instructions for
wiring a standard COM radio into the third party intercom of your choice. If you need additional
insight, contact us at EDMO and we can send you an interconnect drawing we have on file of an
FL-760A wired to a Sigtronics SPA-400 intercom as an example.
Q: I don’t see my issue in the FAQ topics, can I call for more support?
A: Yes – please call EDMO Distributors at 800-235-3300 for tech support
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