[RFI] Does a power pole generating RFI always generate ultrasonics?

RFI Services' Mike Martin mike at rfiservices.com
Mon Jun 7 16:50:25 PDT 2010

I'll be on the road for the next few hours and I'd like to hear your noise.
If you can, give me a call in about one hour, that's about 9pm est. I'll be
able to talk to you while traveling.

Mike Martin
RFI Services
6469 Old Solomons Island Rd
Tracys Landing, Md 20779

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of Stu Phillips
Sent: Monday, June 07, 2010 6:46 PM
To: rfi at contesting.com
Subject: [RFI] Does a power pole generating RFI always generate ultrasonics?


I'm tracking a power pole near my QTH that is generating RFI from 15m on
up.  With a combination of HF and VHF antenna, I'm pretty sure I've
tracked to the correct pole.  This pole is generating more of a
"cracking/poping" form of RFI rather than a constant arc like RFI.


I recently built an Ultrasonic detector as an additional tool in my bag
- it seems to work as I can hear tire noise, rubbing fingers, rat
repeller etc...  BUT...


When I check out this pole, I can't hear anything ultrasonic wise.


So my question...


Does a power pole generating RFI ALWAYS generate ultrasonics that are
strong enough to be heard from the ground?



Stu K6TU

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