[RFI] Solar Edge / SunRay Uodate

[K9MA]

TV's with rabbit ear antennas were a big problem back then, despite the 
broadcast towers being line of sight just a few miles away. Those 
neighbors with outdoor antenna never had a problem, ever right next 
door. The only explanation I could think of was that various poorly 
bonded pieces of metal near the rabbit ears, perhaps in the walls, were 
generating harmonics. Rabbit ears also picked up all sorts of 
reflections, which even the simplest of outdoor antennas would fix.

My most recent TVI complaint was just after the switch to digital TV, 
maybe 10 years ago. A neighbor to the NE had a set top converter and 
rabbit ears, which I could wipe out with 10 W on 10 meters. A bunch of 
ferrite cores on the cables took care of it at 1500 W, and I even got my 
ferrite cores back eventually.

Thankfully, TVI just doesn't seem to be an issue any more.

73,
Scott K9MA

On 8/30/2024 1:29 PM, Dave wrote:
> Cable TV cured a lot of TVI complaints. I had put up an antenna when we moved in a house around 1991. Neighbor’s son knocked on my door and said my ham radio was interfering with his mother’s TV. I invited him in and showed him the end of the antenna cable and radio in the box.
>
> Turns out main TV was on cable (no interference) and his mother’s TV was using rabbit ears and location at base of hill in direction of TV transmitters. Snowy picture from lack of signal.
>
> 73
> Dave wo2x
> Sent from my waxed string and tin cans.
>
>> On Aug 30, 2024, at 1:14 PM, K9MA<k9ma at sdellington.us> wrote:
>>
>> On 8/29/2024 10:40 PM, Gene Smar via RFI wrote:
>>> A now-Silent Key coworker once told me whenever he erected a new antenna, he left the coax outside and unterminated for a week or so, you know, to let the psychosomatic RFI complainants show up at his door so he could show them the unconnected antenna cable. He said it worked like a charm and never got another complaint, at least until the next antenna went up.
>>> 73 de Gene Smar AD3F
>> Back in 1989, when I put up a tower and got back on the air, I had numerous RFI complaints, mainly landline telephones, stereo systems, etc. Only afterwards did it occur to me that I should have put some antennas in the attic and gotten on the air a lot with the amplifier. Then when the tower went up, the RFI problems would have been LESS severe!
>>
>> Fortunately, in recent years, despite my increased activity, I've had virtually no RFI complaints. Sadly, the RFI is now going in the other direction.
>>
>> 73,
>>
>> Scott K9MA
>>
>> --
>> Scott  K9MA
>>
>> k9ma at sdellington.us
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-- 
Scott  K9MA

k9ma at sdellington.us