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Active Hearing Protection Compatible with Radio?

In total I’ve spent under £60, that includes paying for JCI to modify my Racals so if you DIY’d it you’re looking a lot cheaper. 


Yea I'm not trying to say they are really expensive just cautioning it isn't as simple as £10~ on just the racals. 

Also if money is no object then maybe people might like https://www.silynxcom.com/store/headset-systems/clarus-pro/


£60 that is very cheap.

Yeah Frontiers are cheap and so are baofeng radios but the ptt between the two costs a fair amount.

 
£60 that is very cheap.

Yeah Frontiers are cheap and so are baofeng radios but the ptt between the two costs a fair amount.


If I remember correctly my Racals (modified) were £50 from JCI and I got the surefires through my local gun shop for £10 as they had a sale on.

The other bits I already had from using fake comtacs.

 
Success!

View attachment 48654

This was actually incredibly easy once I found a pin diagram for the EZ PRR,

View attachment 48656

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The PTT was a little more annoying but fine once I found a diagram showing which bits of the Kenwood connector were supposed to be the speaker, PTT, mic, and ground. Got out a multimeter and figured red was mic, yellow was speaker, white was PTT and black was ground,

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View attachment 48659

Getting a 1B 5-pin Lemo off eBay was easier but finding a thingamajig to stop the socket rattling around inside the PTT was a pain. Eventually I found an appropriately sized o-ring, it's not the most secure thing ever but I gave it a good wrench and whilst it's flexible it's not coming out. Probably more watertight than it used to be too,

View attachment 48660

Results are mixed; I found the radio sound is great but the built in mic seems to suck up every sound nearby. Good enough though not having to wear supra-aurals anymore will be lovely.

 
No the ear mic on the racals is a pain in the arse. Mine is diconnected and they use the ppt fist mic.


When glancing at my post later I realised... I'd forgotten to reflect the pins for the headset socket (the diagram is looking into the socket but you're soldering the rear) so that I had pins 2 and 3 as ground with 4 PTT and 5 speaker! Learnt something interesting though aside from that I'm an idiot; it STILL works in reverse... BUT the mic is noisy as hell. When I corrected the connections almost all noise disappeared from the mic. I wonder if this is why you seemed to have such a bad time with noise and @DopeYourScope has been fine?

 
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When glancing at my post later I realised... I'd forgotten to reflect the pins for the headset socket (the diagram is looking into the socket but you're soldering the rear) so that I had pins 2 and 3 as ground with 4 speaker and 5 PTT! Learnt something interesting though aside from I'm an idiot, it STILL works in reverse... BUT the mic is noisy as hell. When I corrected the connections almost all noise disappeared from the mic. I wonder if this is why you seemed to have such a bad time with noise and @DopeYourScope has been fine?


Doubt it my set up is built by JCI comms

 
Hi, Damien here, I bought in Poland Racal frontier 1020. I got from seller lemo 5 pin plug diagram but when I solder my Nexus TP 120 Plug, microphone work only when I talk directly to right headphone

when both headphone was in ears microphone doesn't work. I use baofeng UV 82 with Z tac PTT zU94 . Can u help my soldering this correct ? Can I send my  correct diagram ?

 
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