I've been following this discussion with interest. I spent the summer tracking down more than 20 sources of power line noise. As an offshoot of that I've made it my mission to help clean up RFI in my
Hi Paul, You would helpful a step attenuator, in 1 dB steps, to be a valuable addition to your tool bag. There are situations where it helps isolate to an individual pole. Its much more accurate than
Similar observations here Paul in my never ending battle to keep on top of the noise situation in my rural area - mainly 14.4 kv distribution and some 25kv 3 phase stuff. Many sources top out above 1
In the vehicle I often like to use an old (i.e. analogue and inexpensive) spectrum analyser like some of the portable Texscan CATV ones. As CATV companies have transitioned from NTSC to QAM channel l
Thanks for adding to the discussion Don. That reminds me I forgot a couple of important details so I'm replying on-list to add them. I hadn't thought about using a spectrum analyzer even though I'm w
Or, since you don't really need a calibrated result, build a simple variable attenuator. Just about anything works so long as you can vary the sensitivity as you approach the power line. 73, Pete N4Z
Re a portable oscilloscope to look at noise signatures (the number of "points" on the waveform is a basic but good way and u can usually discern multiple sources too) is to use a audio spectrum analy
I use an old IC-202 (2m battery powered ssb/cw transceiver). It has a whip antenna and provides a very directive null off of the tip of the whip. -- Greg Chartrand - W7MY Richland, WA. DN-06IF W7MY