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Re: [RFI] Finding house noise sources

To: <rfi@contesting.com>
Subject: Re: [RFI] Finding house noise sources
From: "Mike Smith VE9AA" <ve9aa@nbnet.nb.ca>
Date: Mon, 18 Jan 2016 18:25:45 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Hi Gary, 

 

I was an apprentice electrician in a past life.  We often mounted the bare
doorbell transformer on an L-16 type connector right on the side of the
electrical panel, or off the side of a nearby octagon box near-ish wherever
the twisted pair of low voltage wiring would go upstairs to your doorbell
cct's.  I have actually seen a "bad" doorbell transformer, so they do exist.
If your panel is behind gyproc, you may need to get in behind it somehow to
see.

 

Other things to think about that could possibly be on that kitchen cct are:

 

Smoke alarms or co2 monitors

microwave ovens

fridges (icemaker or any electronics)

stoves (does it have a digital clock?)

alarm systems (you probably would've mentioned that)

pot lights with electronics ballast

LED valance lighting (switching power supply)

Touch taps (the tap/faucet at your sink)

in-sink garborator

dishwasher

mini split a/c-heater

on demand hot water heater

vent fan

electrically heated floor?

 

The thing is, a *lot* of stuff might be hard wired into your house and not
necessarily (or obviously) be plugged into an outlet right there in plain
sight.

 

A friend of mine had his built-in microwave oven cause s9+ QRM when he was
on 10m , and that was with his beam 120' away and 80' up in the air.

 

Needless to say, on solar cycle peaks and if there was a contest on, this
fellas wife doesn't defrost or cook anything in the microwave as that
breaker is OFF on the weekends!

 

HTH

 

Mike ve9aa

 

Mike, Coreen & Corey

Keswick Ridge, NB

 

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