Does your lapel mike have a TRS (tip/ring/sleeve) plug or just TS(tip/sleeve). If just a monaural TS plug it is shorting the PTT lead to ground causing it to go into xmit. Just a thought. Also if it has a TRS plug is the ring isolated from the TS.
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jim Miller
Sent: Saturday, November 24, 2018 1:36 PM
Subject: Re: [BITX20] Raduino clicking when microphone is connected or keying CW. #ubitx-help #radiuno
I am currently in the same situation. I have a simple lapel mic and every time I plug it in the rig goes into transmit mode, it's almost like there's a short. I've attached the diagram from the BitX40 but it's not quite what I'm looking for. Is there a good diagram for the uBitX Mic jack with PTT? The diagrams I've seen don't specify if you're seeing the top or the bottom of the connector.
I've attached photos, probably too many, and hopefully someone from this awesome group and point out my error
On Fri, Nov 23, 2018 at 7:45 AM KN4IYL <kn4iyl@...> wrote: