Highfields Amateur Radio Club
Constructors Corner.
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Make an OPC-782 Adaptor.
By Brian, MW0GKX.

This adaptor will fit the Icom IC-Q7 (and others) and allow many Icom speaker/mics to be used with this radio.

You will need a 4 pole 3.5mm jack plug, a stereo 3.5mm jack socket and a stereo 2.5mm jack socket (although one of the 2.5mm socket connections is unused some mics have a connection to this point).

connection is shown in the diagram below.

layout for OPC-782

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