[RFI] New RFI

[Dave Cole]

Hello,

I have some RFI location information at:

https://www.nk7z.net/i-have-rfi-now-what-locating-it/

I use the MFJ-856, (https://mfjenterprises.com/products/mfj-856), when 
looking for VHF RFI.  It will pinpoint an RFI source and in most cases 
you can tell which part of the house the RFI is coming from, if you are 
on the sidewalk in front of the home.

Your RFI could be anything, is it on a schedule, does it change 
strength, lots of questions to answer first.

IDing via signature can sometimes work, (not too often), but nothing has 
worked for me better than getting out on foot and looking for the RFI 
source.

Once you have it located that is another entirely different matter.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 1/11/21 8:45 PM, RALPH GRANCHELLI wrote:
> Hello inteference investigators,
> 
> I have new RFI issue that started about a week ago.
> 
> I have eliminated the house /  items as a source.
> 
> Killed all breakers, ran the XCRV from batt. No change. Disconnected ext 
> antenna, used in house antenna and no noise. So noise coming in from ext 
> antenna.
> 
> The RFI is strongest on 80 meters however it is present up to vhf with 
> diminished magnitude.
> 
> I took a screen shot of it on the spectrum scope.
> 
> Does anyone recognize the signature?
> 
> https://www.youtube.com/watch?v=uOdzw2ev5eE 
> <https://www.youtube.com/watch?v=uOdzw2ev5eE>
> <https://www.youtube.com/watch?v=uOdzw2ev5eE 
> <https://www.youtube.com/watch?v=uOdzw2ev5eE>>
> TNX & Rgds,
> 
> N6XLQ
> 
> 
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi