[RFI] RFI Noise Problems
tlthompson at qwest.net
Fri Jun 28 15:56:46 EDT 2013
Any number of things could be causing that kind of noise, but my grow
light noise sounds very similar to that. It is usually on a timer and
has a different sound when the grow light is first turned on. It is not
the light but the switching electronic ballast that causes the RFI.
Good luck and 73,
On 6/28/2013 12:12 PM, t.izak wrote:
> Hi Gang,
> Been having this RFI noise issue now for the past few months. Comes on at
> different times since it is on a timer type system. We lost power a few
> times and this dis-rupted the timer so it came on later, etc.
> It was off for a few days and thought whatever it was, finally burned out.
> Then it came back on 24 hrs for about three days straight then finally went
> back to the 12-16/hr stint.
> I got it on tape yday aftn as it now comes on @ 6:00p.m. At first, I can
> hear a "click" sound (all was recorded in AM mode on a K3), then came the
> igniting of something or other and then it had a "whirring" sound like a
> motor spinning. This was for about 5-10 secs then it sounded like it finally
> came up to speed and had a "buzzing" sound for the noise issu but you could
> still hear the whinning thru the buzzing. I only recorded about 2-3 mins of
> My next door neighbor has an in-ground pool and I asked him to turn off the
> main breaker to see if it was his house the RFI was coming from...still had
> the noise issue but don't know if he understood what I was telling him to do
> about turning off the "main breaker". I have my 6m yagi pointed in the peak
> direction of the RFI noise and seems to be centered over his house. There
> are two other houses I can check later but does anybody have any idea what
> type of apparatus this might be creating this RFI?
> HELP !
> Many thanks,
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> RFI at contesting.com
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