Intercom User Information


Mk1 INTERCOM
l	This intercom has been designed to be as universal as possible.
l	It can be made to interface with all ICOM radios and other makes but may require different patch leads and adjustments to the circuitry depending on the type.
l	This black box variant intercom is not waterproof. Although it has been shown to work when wet on the outside due to rain showers this is not recommended and it should be kept dry.
l	P1 socket is identified by a red circular label 1cm diameter. P2 socket is next to P1 socket and is unmarked.
l	At the opposite end of the box are two DIN sockets.
l	The one opposite the P1 socket is for the patch lead to the radio. The other is for the PTT lead. They have different pin patterns and cannot accept the wrong plugs.

Mk2 INTERCOM
l	This slide-on variant intercom is designed inside a modified ICOM battery box and fits in place of the original Ni-Cad battery.
l	It has been designed to be used with ICOM IC-A22 and ICOM IC-A3.
l	It is available in a case suitable for ICOM IC-A20 and ICOM IC-A2
l	The patch lead is short and hard-wired into the intercom.
l	When in position (connected to the radio) the top end of the patch lead should be secured to the small loop on the side of the radio with the small tie-wrap provided. Trim off excess tie-wrap.
l	This slide-on variant intercom is not waterproof. Although it has been shown to work when extremely wet on the outside due to heavy rain showers this is not recommended and it should be kept dry. (Your ICOM radio is less waterproof)
l	P1 socket is identified by a red circular label 1cm diameter. P2 socket is next to P1 socket and is unmarked. (Bottom entry variant) The front entry variant has a P1 selector switch above the sockets.
l	The intercom has its own power supply socket that accepts a DC power jack. (Bottom right viewed from the front) The front entry variant has the DC power socket on the left (viewed from the front)
l	When in position, the radio is automatically supplied with power from this socket via the connections on the bottom of the radio.
l	Do not use a separate supply to the radio when the intercom is in position. It is un-necessary and could cause earth loop problems.
l	An on-board PTT switch is supplied as standard. (Momentary toggle switch)
l	Below this switch is a phono socket for a plug-in remote PTT. Either PTT can be used at any time.

POWER SUPPLY
l	Both Mk1 & Mk2 intercoms require a DC supply of 12v to 15v.
l	13v6 is ideal as provided by most good rectifier/regulators. FLYCOM intercoms have been run from a Key West regulator without a battery although a battery with a 3 amp fuse is recommended.
l	Distortion of the audio will occur when the voltage drops below 11v.
l	The intercoms will stand an absolute maximum of 22v but your ICOM radio will fail above 15v.
l	The intercoms are polarity protected. Your radio probably isn’t. Make sure the battery is connected the right way round.
l	The power jack should have centre +ve, sleeve –ve.


IMPORTANT

FLYCOM Mk1 & Mk 2 INTERCOMS have fixed volume outputs. They have been designed to work with the FLYCOM flying helmet and the FLYCOM headset which have their own individual volume controls allowing the volume to be turned all the way to zero

Some headsets and helmets of other manufacture do not have this facility

The use of the FLYCOM intercoms with FLYCOM headsets or FLYCOM flying helmets or of headsets or flying helmets of other manufacture is beyond the control of FLYCOM

Users should satisfy themselves that their equipment can control the volume safely.

Using a headset without a volume control with a FLYCOM intercom could be hazardous to your health. Excessive noise has been shown to cause permanent hearing loss

Users should be aware that flying in powered aircraft constitutes a noisy environment
Excessive noise has been shown to cause fatigue and loss of concentration

Fatigue and loss of concentration have been shown to cause serious injuries and death


[ Home ] [ Up ] [ Helmet User Information ] [ Headset User Information ] [ Intercom User Information ]