I've tried the obvious things: turning off and disconnecting everything I can in the shack including my computer and monitors and running from Smartlink on a computer at the other end of my house.
Is this normal? Any ideas on how to track down the source short of shutting off the power in my house?
What about power to your Router or Ethernet switch? Wall warts are the most common problem and switching power supplies are a close second.
Other things that are noise generators are
some LED lighting
Switching power supplies like your station power
basically ANYTHING with a Ballast
Multi-speed motor controls like washers, Dryers, furnaces, water pumps ect. , ect., ect. these are intermittent and NOT constant.
If your speakers, Router Ethernet switch ect have a 10V to 16V power requirement they can be operated direct from your Station Power supply.
Try turning the breakers off in you house run the radio off of a 12Volt battery and use a laptop on battery direct to the radio then if it's gone then it is in your house, if not maybe your neighbors have something.
If it is in your home then turn on each breaker one at a time and watch it and if it comes on then you have at least found the circuit it is on and can start your search.
hope this helps.
The great thing about having such a great panadapter is that you can see all the signals on the band at the same time.
The BAD thing about having such a great panadapter is that you can see all the RF junk, noise, and interference on the band at the same time!"
Ken - NM9P
Does someone nearby have solar panels? The charging regulators on those can also create a bunch of noise and none of the energy efficient devices have any regulations on noise since there are no standards they have to follow. LED bulbs are the worst for noise generation, does it happen only at night maybe its led street lamps nearby (within several blocks) Just ideas ...
And If you do identify them you can report them to the FCC as harmful interference and I have heard they will take action and send a notice to the offending owner of those devices mandating they take corrective action or be fined.
That is regardless of whether the owner is private or a business or a municipality, power company etc.
Of course that wont happen unless you file an official complaint though.