sooo been dealing with this for quite awhile now how can i get rid of it
sooo been dealing with this for quite awhile now how can i get rid of it
depends on the noise...if it's coming from florescent lights in the area, or grow lights, transformers, or something else electrical running, then there's not much of anything you can do about it.
Ferrite chokes.
One other thing...If you have a plasma TV on...."turn it off!"
Had a bad breaker in panel box that was causing noise on base radio...might check your breakers.
Also, LED lights that you've installed in the house to save electricity...
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Palomar-Enginners recommend 43 material chokes 25-300MHz and 31 for 10MHz and lower.
All answers are opinions and may, or may not be technically correct.
Yes. I use five 63mm toroids from Fair-Rite glued together, then pass the RG213 through four times creating three loops. This has a high choking impedance at 27mhz. I also use this at the balanced feedpoint of my LFA and Moxon antenna as opposed to a 1:1 current balun.
Correction on my last post, 31 material is still effective on 27mhz, it performs fine according to specs regardless of Palomar. I don't know where their specs come from or who makes their ferrites. 43 mix has that little bit more choking impedance on and and above 27mhz. It's much of a muchness as far as I am concerned.
Not for sake of argument: RG-400 choke kit mix 31 toroid, 2.4” OD toroid (160-20m);RG-400 choke kit mix 43 toroid, 2.4” OD toroid (40-6m) IAW https://www.kf7p.com/KF7P/RF_chokes.html. My interest is in building toroid chokes.
I've made a handful of Air Choke Baluns using 4" PVC and 18' coiled coax. Too heavy for antenna fed choke.
All answers are opinions and may, or may not be technically correct.
I'll see if I can't post a pic of my 4 element LFA temporary feedpoint with RG58.
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