You need to kill the main breaker, Dick, and walk over to the power panel with a 6 transistor radio and if you have HASH, then you need to call the power company and tell them to get their piece of junk off the house. I had the same issue. I think that most of us here have. It's a pretty well documented issue.
On 24 Jan 2020 at 12:20, [email protected] wrote: > Just a thought, does your house have the new "intelligent" power > metering on the powerline? This would still be on, even if your > breakers > were off. Or, maybe the same type of monitoring on natural gas or > municipal water supplies. Sure sounds like a switching power > supply.... > > Brian K8BHZ > > On 1/24/2020 1:59 AM, Dick Bingham wrote: > > Greetings All > > > > Here are my basic conditions: > > - KiwiSDR (~DC-to-30MHz) or > > - Apache-Labs 7000dle > > - Dell laptop computer > > - Both on battery power > > > > I have cleaned up my system using chokes and filtering to the > point > > there are virtually no CM-signals entering the receiver when the > feedline > > at the antenna is disconnected and re-connected to a 50-ohm > load. > > > > When the antenna is reconnected I see desired signals PLUS an > > unwanted comb-line with signals every ~98.4KHz (e.g. comb-lines > span > > 2573.49KHz to 4355.38KHz resulting in 98.438KHz line spacings.) > > > > 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. > > > > Have any of you encountered similar ~98.xxxKHz spurious signals > ? > > > > 73 Dick/w7wkr at CN97uj > > _________________ > > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations [email protected] Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
