[Elecraft] K3 loss of rx signal

[Jim Brown]

On Tue,4/4/2017 2:19 PM, donovanf at starpower.net wrote:
> I'm sure the Amphenol connectors are very high quality and perhaps
> not as leaky and unreliable as generic (or worn) connectors

The problem with that is that it assumes that the Amphenol connector you 
properly installed is mated to another Amphenol connector, properly 
installed.

A few years ago, I added stubs to a couple of antennas for harmonic 
suppression, carefully placing them for optimum suppression, but didn't 
hear nearly as much suppression as I thought I should. One of the causes 
was rectification and re-radiation, as you had posted (thank you VERY 
much for that), but the other cause was leakage in the cabling that made 
up my antenna switching, and in the switching itself. Harmonic 
suppression can be a big deal if you're trying work SO2R on 40/80 and 
40/20.

The next summer, I bought a spool of BuryFlex and a bag of 83-1SPs and 
replaced every piece of coax in that system. I also replaced the 6x2 
Array Solutions switch with the newest 4O3A 8x2 switch. Once that work 
was complete, harmonic suppression provided by the stubs was 
significantly better, and what I heard was down to the "gurgly" sounding 
rectification you described.

73, Jim K9YC