[Elecraft] K2 receiver going temporarily deaf

[WQ8Q]

There's a problem with some SO-239/PL259 connectors . . . the threads on
some brands are not quite the same pitch as on others and will loosen up
fairly quickly.  I noticed this a couple years ago when using brands
labelled "Made In USA"  started loosening up when used with Amphenol brands
. . . quickly switched (after much head scratching) to all Amphenol
connectors (including substituting Amphenol connectors to my K2/100 just to
be safe) if for no other reason it's a name brand and all the thread pitches
can be counted on.
A problem you may have is that the SO-239 on your W9INN connector may have
threads that are a little "off" from your other connectors.  It's worth
checking out.

73 de Rick, WQ8Q

----- Original Message -----
 > However, I did notice when I put the W9INN dipole up a couple weeks ago
the
> SO-239 'nut' on the balun was a bit loose (thus the SO-239 itself could
> rotate in the center insulator) as I tightened the feedline to it. I
> stopped, tightened the nut back up while holding the SO-239 in place but
> maybe that's all it took and it 'broke' anyway. I have noticed some