On Mon,8/31/2015 1:20 PM, Michael Coslo wrote:
It’s a Flex6300.
That model lacks a pre-selector.
Nothing has changed in the shack since the day I got it, and through the
winter, 40 meters was in pretty constant use, and was working well until around
a month ago, when this interference showed up.
Did you, your XYL, or a neighbor buy something and start using it around
that time?
I’ve done everything locally except for turning the entire house off. Which is
a little difficult to do with the 6300 because it runs through the house router and
has a computer attached.
Hmmm. Can't you bypass the router, run the radio on battery, and connect
directly from a laptop?
I also see the interference on a little RXTX ensemble I built that I use
outside the house. That might be the ticket for turning off house power, since
I can run the RXTX off a battery, and same with the laptop attached to it.
Pardon my ignorance. What's an "RX/TX ensemble?" If you mean a
computer-controlled transceiver, yes, that could help troubleshoot.
BUT -- if this does turn out to be an overload issue, you'll need
something far more bulletproof connected to your antenna. Perhaps you
can borrow a K3 or KX3, both of which have serious preselectors, and see
if you hear the trash. Even better if you can borrow one with a P3 or
PX3. If it doesn't see the trash, you know it's overload. If it does,
then it's not overload, the trash is on frequency, and you'll need to
walk/drive around to zero in on it.
Also -- any portable RX is going to need a pretty long antenna to hear
this stuff.
73, Jim K9YC
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