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References: [ +from:wd8arz@ix.netcom.com: 35 ]

Total 35 documents matching your query.

21. [RFI] Monitoring 7197 lsb NorthCars Net - we can chat about RFI (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Thu, 5 May 2016 07:40:10 -0400
Am monitoring 7197 lsb which is the NorthCars Net - Come on in and after the net we can chat about RFI 73 from Bill WD8ARZ - South Bend, Indiana _______________________________________________ RFI ma
/archives//html/RFI/2016-05/msg00023.html (6,660 bytes)

22. [RFI] Quiet Switching Power Supply? (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Thu, 4 Aug 2016 08:59:51 -0400
Any AC switching power supply simply can not be as quiet as a transformer type power supply. Also AC switching power supplies have some of their input circuitry across the AC power input any time tha
/archives//html/RFI/2016-08/msg00010.html (9,162 bytes)

23. Re: [RFI] Quiet Power Supply? (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Thu, 4 Aug 2016 09:22:37 -0400
From about a year ago on this same topic. 73 from Bill - WD8ARZ AC switching type power supplies tend to be very rfi noisy. Transformer type power supplies dont use the the dc to ac to dc switching t
/archives//html/RFI/2016-08/msg00012.html (9,589 bytes)

24. Re: [RFI] A note from Sangean about switching power supplies (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sat, 7 Jan 2017 09:21:52 -0500
Thanks for sharing that info Howard. I would have thought it was all about money. I use transformer power supplies for the most part .... phones seem to be the biggest exception .... but some times I
/archives//html/RFI/2017-01/msg00011.html (8,652 bytes)

25. Re: [RFI] FCC issues a Notice of Violation to Solar City for RFI Inteferance (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Fri, 17 Mar 2017 13:49:24 -0400
Well done Mike, and thank you so much for taking the action you have and keeping all of us informed about it. 73 from Bill - WD8ARZ It appears that at least one of the primary interference generating
/archives//html/RFI/2017-03/msg00041.html (8,239 bytes)

26. [RFI] FCC Doesnt Call Amateur 'Ham Radio' A Hobby (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Mon, 7 Aug 2017 08:12:51 -0400
If you check the FCC Rules and Regulations for Amateur Radio, no where does it use the word 'hobby'. It does give five reasons for the existence of Amateur radio. Part 97 covers the Amateur Radio reg
/archives//html/RFI/2017-08/msg00018.html (10,521 bytes)

27. [RFI] Device Generating RFI Fix (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Mon, 7 Aug 2017 08:34:41 -0400
Many of today's electronics use AC Switching power supplies. That method avoids the use of transformers saving on cost, weight and size of the device. Instead 'switching' power supplies circuits are
/archives//html/RFI/2017-08/msg00019.html (7,928 bytes)

28. [RFI] Pure water is an insulator (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sun, 24 Sep 2017 17:53:53 -0400
Pure water is an insulator .... water with contaminates in it is what makes it become a conductor of sorts ...  Bill https://www.scienceabc.com/pure-sciences/do-you-think-that-water-conducts-electric
/archives//html/RFI/2017-09/msg00029.html (7,834 bytes)

29. [RFI] Low Freq Observation of Earths Oscillations on Ocean Bottom Seismometers 121217 (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Tue, 12 Dec 2017 10:28:19 -0500
First Observation of the Earths Permanent Free Oscillations on Ocean Bottom Seismometers - Wonder of some upper harmonics get felt or heard by human's? Especially if fluid in their ear(s) .... rumors
/archives//html/RFI/2017-12/msg00039.html (8,930 bytes)

30. [RFI] Noise location radio Tecsun PL660 011618 (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Tue, 16 Jan 2018 16:08:47 -0500
Have used the radio below for listening on a variety of ham bands, in addition to a.m. / f.m./l.f./shortwave, aircraft bands etc https://www.amazon.com/Tecsun-PL-660-Portable-Shortwave-Single/dp/B004
/archives//html/RFI/2018-01/msg00025.html (10,390 bytes)

31. [RFI] Noise location radio Tecsun PL660 011618 (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Tue, 16 Jan 2018 18:03:09 -0500
Have used the radio below for listening on a variety of ham bands, in addition to a.m. / f.m./l.f./shortwave, aircraft bands etc https://www.amazon.com/Tecsun-PL-660-Portable-Shortwave-Single/dp/B004
/archives//html/RFI/2018-01/msg00028.html (10,637 bytes)

32. [RFI] Emergency Radio and Earbuds 021718 8:44a.m. (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sat, 17 Feb 2018 09:06:19 -0500
This little package could be useful for looking an rfi source. Doesnt attract attention while your doing it to boot. Bill / WD8ARZ in NW Indiana ... out == We all enjoy our radios, but sometimes rfi
/archives//html/RFI/2018-02/msg00056.html (9,858 bytes)

33. [RFI] RFI Searching Radio and Earbuds 021718 (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sat, 17 Feb 2018 09:31:08 -0500
This little package could be useful for looking an rfi source. Doesnt attract attention while your doing it to boot. Bill / WD8ARZ in NW Indiana ... out == We all enjoy our radios, but sometimes rfi
/archives//html/RFI/2018-02/msg00057.html (9,616 bytes)

34. Re: [RFI] Emergency Radio and Earbuds 021718 Noon EST (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sat, 17 Feb 2018 12:00:48 -0500
I dont have the actual numbers David. Maybe that info is on the web somewhere. If you find it, please drop me the url, would appreciate it. However as I said, the Memorex Model MR4240 compares with t
/archives//html/RFI/2018-02/msg00059.html (10,147 bytes)

35. [RFI] Emergency Radio and Earbuds Radio Size 021718 12:32pm EST (score: 1)
Author: WD8ARZ <wd8arz@ix.netcom.com>
Date: Sat, 17 Feb 2018 12:31:23 -0500
The Memorex MR4240 Size In Inchesis  1.75L x 0.75W x 3.25H  -- The PL660 size is  7.4 x 1.3 x 4.5 inches So go with the MR4240 David ..... Bill / WD8ARZ .... out for now ... I was just looking for th
/archives//html/RFI/2018-02/msg00063.html (9,499 bytes)


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