[RDXA] skype and HF noise (interesting use + query)

[Carey Magee]

Steam heat here.  Low pressure 5-6 pounds max.  No fan, no fancy
electronics.  Just good old fire and water.  Sorry.

73,
Carey, K2RNY
Rochester New York
Grid: FN13ef


On Wed, Nov 27, 2013 at 7:34 AM, <n2ujn at rochester.rr.com> wrote:

>
> All,
>
> last Feb 24, on 28.4 MHz and 21.3 MHz, I suddenly began experience
> intermitten S1->S8 noise.  The noise was almost like the sudden onset of a
> quiet carrier.
>
> Initially, I was completely puzzed (a month or so).  Then, as it warmed
> up, the intermittent noise began subsiding, then, gone completely all
> summer.
>
> But, over the last week it is back.  Very bad and more on than off, but,
> still on and off.
>
> So, this morning I turned on my iPad logged into skype and pointed it at
> my transceiver while tuned to 28.4 Mhz.
>
> Then, I awakened my daughter had her log into skype and call me on video
> call so I could see my transceiver from outside the house.
>
> Then, I stood next to my neighbors heater exhaust which is located on the
> side of his house next to my garage.
>
> While watching my transciever S meter via skype, I managed to completely
> correlate the onset of noise with the onset of my neighbors heating system
> via the sound from the exhaust.  Perfect correlation with noise onset at
> the transceiver with the onset of the heater exhaust from my neighbors home.
>
> So, good news, the puzzle: where is the noise coming from is solved.
>
> Bad news:  I expect heating systems are pretty complex, and, when they
> emit RFI could be a lot of places.   I had sent this information off to
> Paul who has a lot of experience in electrical engineering but thought I
> would ping the reflector.
>
> Has anyone experienced RFI steady onset noise from a furnace system, I am
> guessing a new one since it just began last Feb 24th?
>
> Any ideas for resolution would be great before I stop by my (fortunately
> extremely nice) neighbors home?
>
> Thanks in advance everyone.
>
> Mike
>
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