Author: John Pelham" <john@radiophile.com (John Pelham)
Date: Sat, 30 Nov 2002 11:56:37 -0500
Wiley, Your description, and the sound sample you provided, sound like power-line noise to me. I had (and to some extent still have) a problem similar to yours. My noise was only on 15M through 6M, a
Author: John Pelham" <john@radiophile.com (John Pelham)
Date: Mon, 25 Mar 2002 17:57:59 -0500
I have DSL and a 10-base-T home network (five computers) at home. I don't interfere with them, and they don't interfere with me at all. I may be just lucky on these computer issues. I make up for it
Author: John Pelham" <john@radiophile.com (John Pelham)
Date: Tue, 1 May 2001 07:26:49 -0400
Wow! I'm surprised and gratified at the number of responses to my RFI problem. Thanks to everyone. Let me answer some questions and discuss some issues raised in the responses: I have done some readi
Author: John Pelham" <john@radiophile.com (John Pelham)
Date: Tue, 1 May 2001 20:04:35 -0400
Thanks again to one and all for this excellent discussion. Let me continue to add to my description of the noise(s). Right now the noise is going full bore on 6M. It peaks S9 with my beam pointed S-S
Author: John Pelham" <john@radiophile.com (John Pelham)
Date: Mon, 30 Apr 2001 14:02:02 -0400
I've got a noise problem, and although I perhaps haven't done enough legwork yet to be writing responsibly to this reflector, I thought I'd give a shot with a description to see if anyone's run acros
The horizontal scan rate of U.S. video is 15.734 kHz. Sounds like it's a TV set. John Pelham E-mail john@radiophile.com Antique Radio Web Site http://www.radiophile.com ______________________________
In 2001 I posted here about a line noise problem I was having. Well, I'm still having it and I seek the group's advice as to how best to proceed. First, a description of the problem. I truly believe
Thanks for all the replies. (For once, I actually had more mail I wanted to read than spam in my Inbox.) I learned some useful things from the responses, especially 1. It's OK to distribute residenti
Jim Jarvis wrote If you'd like to grade outgoing FCC chair Michael Powell on his performance, the Wall St. Journal is taking a poll: http://online.wsj.com/home/us There's a place to click, just below
Ford wrote: When you hook up the cables to keep the colors all the same on each pin at each end, you will have conductivity between the correct pins, and the network will work, but you completely los
I'm glad to hear of your successful experiences with your power company Bill, but it doesn't always work that way. I've been both persistent with, and nice to, my power company RFI troubleshooter for
Frank, your "have you arrested" posting made me so angry that I knew I had to wait until today to rewrite what I wrote yesterday. You wouldn't want to have read yesterday's missive. I realize you wer
Huh? If some real power-line RFI is present, attendees can learn more through the actual practice of DF'ing actual power-line noise sources. No amount of instruction and practice on fake signals can
I need a replacement heat pump for my 2nd zone. Having read here about the RFI problems associated with variable-speed blower motors and their PWM drive, I told my HVAC contractor that I would not ac
frequency Well, that's certainly not been my experience. I almost never hear power line noise on any band below 15 meters. 15, 10 and 6 meters have been the primary bands affected by the many source
I wanted to report my experience for the record. I replaced an old, failed heat pump/air conditioner system. I specifically asked for a system without variable speed motors because I had read that th
I have one; my power company installed it six months ago. It says "FlexNet model 530X" on it. It's about 30 feet from my shack, and maybe 50-150 feet from my various antennas. I can hear some hash if
Peter, K3ZM, posted this amazing story in another venue. He gave me permission to post it here. I'm hoping you find it as interesting as I did. It's FYI only; as far as I know he doesn't monitor this
Roger, Trane has been mentioned here recently several times in an unfavorable light re RFI. If you go to the archives (http://lists.contesting.com/pipermail/rfi/ ) you'll find Trane-related messages
"The Mitigation of Radio Noise from External Sources at Receiving Sites" is a free PDF download from http://edocs.nps.edu/npspubs/scholarly/TR/2007/NPS-EC-07-002.pdf So far I've only had time for a q