[karc] Re: HF setting off more than touch lamps...
- From: Don Gilroy <dgilroy@xxxxxxxxx>
- To: "karc@xxxxxxxxxxxxx" <karc@xxxxxxxxxxxxx>
- Date: Wed, 13 Feb 2013 19:48:36 -0500
Larissa . The most likely cause of your problem
Is rf in the shack caused by the feedline radiating. The easiest cure would be
a 1:1 balun in the feed line close to the antenna. I assume the pump switch for
the toilet is ac so some form of line filter would probably help as well
.google "brute force line filter" to get an idea for that .....good luck
....Don VE3MNE
Sent from my iPhone
On 2013-02-12, at 8:59 PM, Larissa Reise <ve3kgc@xxxxxxxxx> wrote:
> This evening, during our KARC HF net on 80m, my "XYM" brought it to my
> attention that our basement toilet (electronic, mounted on its own sump
> pump" was cycling without actually flushing, anytime I keyed up.
> Naturally, this causes him a little distress.
> He is used to military radios which typically broadcast only encrypted VHF
> and HF and usually don't have inconvenient appliances such as touch-lamps
> and toilets nearby to be affected. (and I have my suspicions that those
> radios are somewhat underpowered on the transmitter side, compared to our
> Ham kit!)
>
> I attempted to run a little band-switch test with Jason VE3OWE by QSYing up
> to 40m, but I wasn't able to contact him there and when I QSYed back to
> 80m, it seems everyone else had disappeared off frequency too. So I can't
> report whether transmitting on a different frequency or band still affects
> the toilet.
>
> Does anyone have any insight into this sort of thing? Can anyone suggest a
> way to mitigate it? (RF chokes?)
>
> Or is it just another curiosity of HF usage from within a home? (At least,
> it hasn't disrupted his online gaming at all - I'd never hear the end of it
> if it did!)
>
> Thoughts? Advice? Questions? Silly remarks? :)
>
> Larissa
> VE3KGC
>
>
>
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