Join Date: Sep 2008
Location: Meridian, Idaho
Yes, that's where it all starts. I need a cable like you're holding, but custom made. The round 5 pin is what J&M uses for the headsets, and Midland uses a dual-pin style plug that plugs into the side of the radio. Because the Midland has two dual pin (both mono style plugs) jacks, we're only talking a total of two circuits, one for speakers and one for mike. (You don't really need the PTT switch because Midland radios have a 9 level adjustable VOX feature that'll eliminate the PTT switch if you wanted to get fancy. )
The problem with the existing Sierra Electronics cable for CB's is it's not wired correctly to work with the GMRS radio, so only the audio part of the Sierra cable works but not the microphone side. When I push the PTT switch it won't key the radio.
Why not just use a headset designed for the GMRS? All the available aftermarket headsets are quite marginal in either design or performance. I have a $250 J&M headset mounted in a helmet that does nothing but sit on the shelf and collect dust, and I know if I can connect the two it'll be a marriage made in heaven.
I'm need someone well versed in audio stuff, to wire me a cable to match the Midland GMRS schematic, and I'll even collect all the parts and schematics and mail it to them, and pay them to do it. Surely there has to be someone out there that builds this type of audio / sound / surveillance equipment...I just haven't found them yet.
The J&M folk are understanding and tell me I have a great idea, but they weren't interested in making just one cable. Well, I don't believe it'll be a one-off job given the popularity of GMRS and the convenience of helmet mounted, high quality headsets.
Last edited by ronnielyons; 05-11-2009 at 10:07 AM.