[Elecraft] Aviation noise reduction headset for K3?

[Michael Eberle]

Yes, aviation headsets use different size connectors for the mic and 
phones.  I believe the headphone use a standard 1/4" and the mic is a 
.206" (5.25mm) plug.  I made an adapter to use my aviation headset on 
the K3 but got reports of garbled audio (probably RF getting into the 
cable or my adapter).  I did get good results using the noise canceling 
headset for RX and a boom mic for TX.

Mike - KI0HA


On 6/14/2018 21:28, ron hess wrote:
> Am setting up a newly acquired used K3 which came with no microphone.  Is
> it possible to use an adapter to make a Lightspeed Zulu noise cancelling
> headset work for the K3.  I got very nice reception using the cell phone
> attachment line but can't identify any microphone function.  The two main
> lines are different sizes, per standard aviation usage.
>
> 73 and thanks,
> (Jay) Ron
> K3OLN
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