[RFI] RFI Identification Help

[John Geiger]

The noise just started again here, and a quick scan of the house shows 
nothing out of the ordinary in terms of stuff running now that wasn't 
earlier.  No phones, laptops, or kindle on the charger.  The chargers for a 
couple of these are plugged in, but they are always plugged in anyways. Both 
furnances are not currently running.  Everything else just like it normally 
is around the house.

I thought at one time it might be the pool filter for the neighbors behind 
me, but just walked into the back yard and see that their pool is covered, 
so guess the filter isn't running.  The house to the east of me is currenty 
unoccupied, so guessing there probably isn't anything in it causing the 
problem right now-guess i need to get the extra antennas up before someone 
moves in HI HI

I don't have a battery in the house to run the rig off of, but could hook up 
an inverter to the van with an extension cord.

Thanks for the advice so far.

73 John AF5CC
----- Original Message ----- 
From: "Dale" <svetanoff at earthlink.net>
To: "W5JR.Mike" <w5jr.mike at gmail.com>
Cc: "John Geiger" <af5cc at fidmail.com>; <rfi at contesting.com>
Sent: Monday, November 11, 2013 4:46 PM
Subject: Re: [RFI] RFI Identification Help


> Mike,
>
> Yes, that is true.  One fellow ham here in IA did solve his recent RFI 
> problem with the "power down the house" approach, which killed the RFI. 
> By turning on one circuit breaker at a time, he discovered the culprit was 
> a battery charger that had a defective battery pack which would not take 
> the charge properly.  That was the only time the charger ever created such 
> RFI.
>
> In that case, the "fix" was easy, but by killing power in the house, many 
> hours of possibly frustrating RFI-sleuthing were saved.
>
> 73, Dale
> WA9ENA
> Iowa ARRL Technical Coordinator
>
>
> -----Original Message-----
>>From: "W5JR.Mike" <w5jr.mike at gmail.com>
>>Sent: Nov 11, 2013 10:38 AM
>>To: Dale <svetanoff at earthlink.net>
>>Cc: John Geiger <af5cc at fidmail.com>, "rfi at contesting.com" 
>><rfi at contesting.com>
>>Subject: Re: [RFI] RFI Identification Help
>>
>>My experience is that is the pattern of many battery chargers especially 
>>when the battery is fully charged but still connected.
>>
>>tnx
>>Mike / W5JR
>>
>>> On Nov 11, 2013, at 11:33 AM, Dale <svetanoff at earthlink.net> wrote:
>>>
>>> John,
>>>
>>> Locating the source is usually faster than speculating as to what it 
>>> might be.  Start with the usual - power the '706 with a battery supply 
>>> and then turn off power in the ENTIRE house when you are hearing the 
>>> noise.  If the RFI goes away, the source is somewhere in your house and 
>>> you can then start re-applying power one circuit breaker at a time until 
>>> the noise returns.  You then need to examine every device on that 
>>> circuit.
>>>
>>> If the RFI does not go away when you power down the house, then it is 
>>> time for action.  You will need to take the '706 mobile or portable and 
>>> start traveling around the neighborhood, or even further.  Incidentally, 
>>> try using the rig in AM mode to see if you can hear the RFI better than 
>>> with SSB.  Keep us posted on how it goes.
>>>
>>> 73, Dale
>>> WA9ENA
>>>
>>>
>>> -----Original Message-----
>>>> From: John Geiger <af5cc at fidmail.com>
>>>> Sent: Nov 11, 2013 10:24 AM
>>>> To: rfi at contesting.com
>>>> Subject: [RFI] RFI Identification Help
>>>>
>>>> I have an RFI problem that mostly shows up during the day, and affects 
>>>> most
>>>> bands, although I notice it most on 15 and 12 meters as I am on those 
>>>> bands
>>>> more during the day.  It is a buzzing type noise that comes in around 
>>>> S6 or
>>>> so on my Icom 706MKII, and the NB won't do anything about it.  It 
>>>> doesn't
>>>> show up all of the time, but comes and goes,  It seems to cycle with 4
>>>> seconds on and 3 seconds off, and sometimes will cycle quicker than 
>>>> that.
>>>> Anyone else seen an RFI issue like this and have any idea what it might 
>>>> be?
>>>> It doesn't seem to occur at night.
>>>>
>>>> 73 John AF5CC
>>>>
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>>>
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>