Below there is info about connection of Heil Proset IC to IC-7600, IC-7000 and IC-706. In
addition you will find info about pin outs and wiring between Heil Proset IC and microphone
connector via appropriate adapters.
Heil Proset IC with IC-7600
Headphones connection does not require
explanation. Microphone jack is connected with trcv microphone connector through adapter
AD-1 IC which has round 8 pins jack on other side. 1/8" connector of AD-1-IC has no
capacitor in line in order to supply power to HM-36 microphone. All Icom microphones use the
same wire for so called phantom power supply and for mic input - for this reason must not be any
capacitor placed in the wire connected to Pin 1.
Heil Proset IC with IC-7000 and IC-706
Headphones connection to IC-7000 or IC-706
should be done through 1/4" to 1/8" reduction since phones connectors in both transceivers
are 1/8" in size. Phones connector in IC-7000 is placed on the right side of the head and
for IC-706 in the left front corner of the head (see picture for reference). Microphone is
connected with transceiver through AD-1-ICM adapter. This adapter has 8 pins modular
connector (RJ 45) at the end. As in previous case AD-1-ICM has no capacitor in line in order
to supply power to HM-151 or HM-103 microphone. As already mentioned all Icom microphones use the same wire for
power supply and for mic input - for this reason must not be any capacitor placed in
the wire connected to Pin 6 in a modular connector.