allrightythen! Hooked up to my new attic antenna (not the 10' piece of wire). SAME result!!! Lots of hash that must be coming from the switcher power supply.
Nothing else in the shack (that I can think of) would cause the hash.
As mentioned before - the receiver works great off the car battery in the garage with a 10' wire antenna
I have an Astron 35M coming next Monday or Tuesday. Will report back, then...
Are you sure???
Every single wallwart power adapter and laptop power supply in my house generates loads and loads for RFI. From my exerimenting, it tends to vary a lot with the quality of the supply and the distance from the device. The distance from my wallwarts to the closest part of my antenna strung on the corner of my house is about 15 feet, so I am perhaps more susceptable than some, but maybe not in a unique situation by any means.
Want to test it? Put your rig on 80M and not on a station, then go plug/unplug your wall power adapter from the wall socket. You can also test if it's a certain one by just grabbing the plastic adaptor case with your hand -- then your body will act like a transmitting antenna.
All I can say is I am now in the process of moving my antenna farther away and doing my best to eliminate all the unneeded wall wart power adaptors (in the whole house) I can. Even so, my neighbors in the townhouse nextdoor have at least one bad device that they occationaly turn on that make a ton of RF noise (at least the are quiet folks in the audible range!)
Some of the really old ones are OK as they are 60Hz transformer-based, but all the ones I have from the last couple decades are switchers. Of course there's a reason for this change -- they are much more efficient, much lighter, and require less raw material to build. But there certainly are tradeoffs hihi!
Good luck with your RFI hunting and 73!
Mark - N7EKU