ULTRA-COM aircraft headsets are state- of-the-art design for performance,
comfort and quality.
speakers offer superior frequency response and sound quality. The
industry's standard noise-canceling M/87 AIC micro- phone is
amplified and impedance balanced for optimum utility. Microphone boom
fully adjusts for ideal center-of-the-mouth positioning.
light-weight materials and soft cushion speaker rings provide maximum
comfort and noise-attenuation. Earphones are fully adjustable for proper
fit to seal out ambient noise.
American-made system has been designed for clear communication utilizing
DUAL-COM intercom circuit. This intercom can be interfaced with most
portable transceivers when used with the proper interface cable. The
system includes two audio-equipped headsets and one DUAL-COM intercom.
push-to-talk switch cable and a power cord are supplied with this system.
When used with a matching interface cable, radio transmission may be
accomplished as well.
DUAL-COM equipment is self-contained and offers ideal communication for
all flight conditions and can be used in aircraft without electrical
The Comtronics DUAL-COM intercom is the only
intercom made exclusively for ultralight and light plane operation that
will selectively receive and transmit on two transceivers without
In addition to the same circuit as that used
in our popular ultralight intercom.
we have added a very efficient switching circuit that makes the unit even
more versatile. It
provides a pilot the option to
transmit from either of two separate transceivers while monitoring both
For instance, the pilot may wish to contact
his ground crew via one transceiver
and also notify a nearby airport of his location and intentions on
another. All of this can be accomplished by using
the simple switching circuit provided.
The entire circuit has been placed within a
metal enclosure of overlapping construction to effectively shield out RF
and EMI interference. The selection process is controlled by one toggle
switch located on the front surface of the box. Radio actuation is
controlled by a single push-to-talk switch which may be mounted on the
aircraft in a convenient location; for instance, on the pilot's control
In addition to the dual transceiver
interface, the intercom includes a 9-volt battery for back-up and a 12-
volt power jack with a voltage regulator built in. On the back side, there
is a music input port that may be used for an FM radio or tape player.
for listening only
Push- To- Talk switch interface cables are available for all popular
Microphone wind-screens - 3 models available