[RFI] Guidance on finding noise?

AA5CT jwin95 at yahoo.com
Sun Jan 12 08:33:10 EST 2020


 Kenny,


I have gone after and found many 'sources' on 160, and the
last step involved resolving to the an actual specific power
pole using VHF and UHF. I have not had one case yet where
the pole was a noise maker on 160 and was quiet on VHF
and UHF. 


Case example:


https://www.youtube.com/watch?v=b9oDjNyZ0L8


UHF beam (forgive the wind' sometimes one has to track
these things down in adverse conditions):


https://youtu.be/VzvFf0MoLi8



de AA5CT
.
.
     On Saturday, January 11, 2020, 10:03:03 PM CST, Kenny Silverman <kenny.k2kw at gmail.com> wrote:  
 
 The noise is mainly on 160. Slight to no noise on 80/40, and no detection at AM VHF. 

Regards , Kenny K2KW 

On Jan 11, 2020, at 10:16 PM, AA5CT <jwin95 at yahoo.com> wrote:



 Kenny, 

Did you whip out your VHF and UHF beams with an AM rx
mode receiver once close to the suspect poles? That is the
only way, and it is a conclusive way, that I have found to ID 
noisy power poles once the HF DF loop gets you in the
area of the noise source.

de AA5CT

.
.     On Saturday, January 11, 2020, 9:03:04 PM CST, Kenny Silverman <kenny.k2kw at gmail.com> wrote:  
 
 KC4D,N3AC and N3CW went hunting with a KX3 and a DX Engineering Amplified RX loop and again didn’t find anything conclusive. Basically they said the loop performed about the same as one of the AM radios we have that’s fairly directional. 

We’ve been looking so many times that we’re getting frustrated.  There are a few noisy clusters, but we can’t find a specific pole or house.  Nor can we assess if the noisy areas are actually the key offender(s)

Do we call in the clusters we found ?  Or do we really need to pinpoint the source(s) better before we ask for crews to come out?  We’re concerned about crying wolf and/or giving a list of more than a dozen poles for the power company to look at. 

Regards , Kenny K2KW 

P.S.  the only success so far is fixing my subject line typo 🤓  
  


More information about the RFI mailing list