The following picture shows the overall configuration. This way the interface box is very conveniently located in the middle between the headset and the transceiver which gives you additional room to move and enables you to overate the PTT switch holding the interface box in your hand.
1,5m long), a push-to-talk switch (PTT), and a jack to connect an additional external PTT switch. The interface is built in a small box containing the receiving sockets for the aviation headset, the cables to be connected to the transceiver (phone and mic, both ca. Since I didn’t want to buy the necessary crimping equipment I just used a surplus network cable. Headphone plug is a standard 6,3mm phone jack (you can actually plug the Aviation Headset right in if you want to), the mic jack is a standard RJ-45 jack. Fortunately there are a couple of aviation specialty mail oder stores than can help you out … for instance Friebe, Siebert, Büscher in Germany, or Aircraft Spruce in the US). No chance to get them at your local electronics dealer. The microphone, however, uses a 5,6 mm three pole plug. First problem: where do you find the correct female connector? The phone part of a civil fixed wing aviation headset (caution: different standards for military, helicopter, and commercial airliner!) uses the standard 6,3mm headphone plug equivalent to your stereo headphone. Since I still use my headset for flying cutting off the plugs and replacing them with ham plugs wasn’t an option. So, in the best tradition of ham spirit, I decided to build an interface.
are different and it looks like there is no commercial solution available to interface your aviation type headset with your ham radio gear – at least to the best of my knowledge. However, all standards regarding plugs etc. Those among us who do both flying and ham radio have a dilemma: as a pilot we usually own a high grade aviation noise canceling headset that is generally of better quality than most headsets available in the ham radio market (I personally own a David Clark H10-13.4 headset … try to find a passive headset with similar robustness).
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