Dan,
The K2 BNC jack will have a DC path to ground whether the K160RX is
installed or not. It is not "ground" for RF, but will show a low DC
path to ground if you measure it with your DMM. If you disconnect lead
3 or 4 of T4, the DC short to ground will go away.
73,
Don W3FPR
On 10/26/2020 11:46 PM, Dan Presley wrote:
> Need a bit of help here-I’ve installed the 160 receive module on my venerable K2 #1010 which I built back in 2000..for some reason I seemed to have created a short across the main antenna jack (J4) with this installation. In testing after Installation the reciever was totally deaf as was TX, and I found that there’s a short somewhere between the center pin and the outer sleeve of J4,the main BNC jack first the radio. I inspected the jack just in case,but appears okay. I’m suspecting some sort of short around J14,the 16 pin jack for the adapter. When installed,the radio functions normally and the module is recognized in the menu. Just zip on recieve and transmit. Inspection of the 16 pin socket didn’t reveal anything obvious under a magnifier. The radio was in daily use up to a few days before. I checked the obvious things ,or so I thought!
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