Hi Eric, Using a simple PC based sound scope, the bursts of noise are indeed at a frequency of 120 Hz, and looks just most of the power line arcing I have tracked down over the years. I will e-mail y
Hi Dave, I have used a professional ultrasonic parabolic dish while working along side the local power company (Duke Energy), and were able to find arcing on almost every pole we looked at and theref
Here is a copy of something I posted back in 2017 that might be of interest. -- I installed 6" recessed Dimmable 120 Vac LED lights in family room a year ago (Lowe's Utilitech 65 Watt equivalent), an
Hi Dave Grid tied systems are actually very common as they are the only systems that are cost effective if you live in the US and have local utilities available at a reasonably low cost per KWH (cost
Hi Kenny, I normally use portable HF radio with portable tuned loop and preamp on 160 or 80 meters to triangulate on power line noise and then back the RF gain down as I get close and sometimes use m
Kenny, I should also mention that I did have to track down noise from faulty light pole (problem only between sunset and sunrise), and same setup I use for power line noise worked great to find the s
Hi Ken, I helped W9TC locate a street light that was causing interference on HF that sounded just like power line noise. Noise only during hours of darkness, and it was on continuous. The bad light p
Hi Ken, One last comment or clarification. I do agree that looking at the audio signature ahead of time is useful to help decide if the noise looks like power line type noise as that provides a clue
Hi Ken, Using 3 different audio software tools, I come up with a frequency of 60 Hertz, not 120 Hertz. Typically power line noise has bursts at a frequency of 120 hertz (arcing each half of the sine
Hi Jim, I will try and repeat with my scope triggered on line noise when I get home from work. When I used a sound card scope I only saw big spikes at a frequency of 60 Hz but could have been fooled
Hi Jim, I looked at that RFI noise in sync with 60 hertz video you wanted me to look at using my soundcard scope, and attached is what I captured. Very obvious 120 hertz. I also just took another loo
Hi Jim, Not sure who your question was directed to regarding syncing on the line frequency. I have done that before, and about a week and a half ago we used this technique at WB9DKL on a power line a
Hi Ken, Thanks for the additional 17 second recording with no human voice on top of the noise, and this is what I really needed. I looked at the audio using my 100 MHz digital oscilloscope, I looked
Hi Jim (AA5CT), Yep, I too had 3 phase in the back of my mind when looking at the frequency of the major peaks. Sure will be interesting to see what Ken finds the source to be. Thanks for the comment
Hi Ken, I totally agree with Frank, and I would never report anything to anyone including the power company until you are 99.9 percent sure you have identified the suspect property. Regarding power l
Scott (K9MA) asked "wonder if a two-turn loop a foot square could be made to work on 160". Hi Scott, I use various portable tuned loops for DFing 160 meters and 80 meters (see attached picture). One
I track down a lot of sources of RFI, and one tool I'm missing is SDR software that can actually display the waveform of the noise I'm receiving (amplitude vs time like an oscilloscope). I use variou
Hi Ed, I'm looking for very specific software that shows the received signals waveform as a function of amplitude vs. time just like an oscilloscope would and just quickly looking at the SDR UNO manu
Hi Jim, Great on Spectrum Lab. I use it off and on, but had no idea it had the built-in scope feature, but more importantly what appears to be a user defined sync time within the scope feature. I rea
Hi Paul, I loaded Console 3, and it works great with my RTL-SDR (with up converter) but as you mentioned there does not appear to be a way to modify the time scale on the oscilloscope display so it w