On 1/23/2020 11:59 PM, Dick Bingham wrote:
...
These signals are frequency stable and not drifty. Shutting down the
house-mains with the receiver battery powered does not kill the QRM.
SO, it looks like something somewhere is generating this junk that runs from
the BC-band to >20MHz.
Shutting the main power off won't stop cable modems and routers from
operating if they have battery backup. Some of these devices can be
quite noisy. Also, do you have any UPS units keeping other equipment
alive during power outages?
Good luck,
Gus Hansen
KB0YH
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|