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Total 45 documents matching your query.

21. [RFI] Good news: Panasonic stops making plasma TVs (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Thu, 14 Nov 2013 18:07:28 +0000
The bad news is that Panasonic is just one manufacturer, and there are already millions of plasma TVs in service that are likely to continue spewing out their garbage for years to come. Those things
/archives//html/RFI/2013-11/msg00032.html (9,090 bytes)

22. [RFI] Fraudulent FCC RFI Certification (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Tue, 18 Feb 2014 19:01:13 +0000
A company was caught providing the FCC one thing to get part 15 certification, then selling something else. This involves 433 MHz which most hams probably don't care about, but it reveals what goes o
/archives//html/RFI/2014-02/msg00104.html (8,271 bytes)

23. Re: [RFI] RFI Digest, Vol 134, Issue 39 (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Sat, 29 Mar 2014 02:34:55 +0000
If you suspect a near-by light is being used for some kind of "illegal" growing operation, you might be able to use that as leverage, to your advantage. If the people with the lights are less than t
/archives//html/RFI/2014-03/msg00263.html (7,903 bytes)

24. [RFI] Listen to a Sample of what Plasma TV RFI Sounds Like (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 7 Apr 2014 03:47:36 +0000
sound of broadband plasma TV generated noise. This noise averaged 5 dB over S-9 on 1.900 MHz, from a noise source 200 ft from his receiving antenna. Yours may not be identical to this sample since r
/archives//html/RFI/2014-04/msg00053.html (7,160 bytes)

25. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 5 May 2014 17:02:35 +0000
I always try to be helpful, but I don't curtail my operation because of interference to susceptible poorly designed consumer junk. My philosophy has always been to 'Co-operate, but OPERATE'. Fortunat
/archives//html/RFI/2014-05/msg00011.html (10,397 bytes)

26. Re: [RFI] Power line RFI and Southern California Edison (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 21 Jul 2014 17:23:24 +0000
Sometimes it's best to try to by-pass the bureaucracy and get in touch directly with the linemen who actually do the work, or else the head honcho of the operation. Years ago I had a severe line nois
/archives//html/RFI/2014-07/msg00039.html (11,574 bytes)

27. Re: [RFI] ARRL to FCC... (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Thu, 24 Jul 2014 19:42:45 +0000
Those of us in "illegal grow" states might actually be at a substantial advantage. I personally couldn't care less what kind of plants a neighbour is growing on his own property, especially for his
/archives//html/RFI/2014-07/msg00056.html (10,754 bytes)

28. Re: [RFI] ARRL to FCC... (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Sat, 26 Jul 2014 19:13:26 +0000
I think you are being a slightly paranoid. How are at risk of being sued for informing someone, especially a law-violator, that they are attracting attention by generating a nuisance in the community
/archives//html/RFI/2014-07/msg00074.html (18,223 bytes)

29. Re: [RFI] ARRL to FCC... (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Wed, 30 Jul 2014 18:01:39 +0000
I think that would be opening a can of worms you would rather keep closed. Not to condone breaking any laws, but I would much rather have someone in the house next door minding his own business and
/archives//html/RFI/2014-07/msg00091.html (11,176 bytes)

30. Re: [RFI] Zapped (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Wed, 25 Feb 2015 19:52:33 +0000
I have a 20 y.o. Raytheon RadarRange. It still works fine, but it used to send my wi-fi internet 'radio', about 10 ft away, into buffering mode while it was running. The laptop was never affected. W
/archives//html/RFI/2015-02/msg00089.html (7,481 bytes)

31. [RFI] Grow Light RFI (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Thu, 21 Jan 2016 17:59:45 +0000
This article appeared on the police.com website about a year ago: http://www.policeone.com/drug-interdiction-narcotics/articles/8224280-How-cops-are-catching-grow-ops-with-AM-radios If ARRL, NAB and
/archives//html/RFI/2016-01/msg00043.html (8,406 bytes)

32. [RFI] Mobile phone expansion could disrupt keyweather satellites (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Sun, 24 Jul 2016 18:33:06 +0000
There are still BPL systems in operation? I thought that whole technology had pretty much fizzled out by now because it performed so poorly. Don k4kyv _______________________________________________
/archives//html/RFI/2016-07/msg00069.html (6,955 bytes)

33. Re: [RFI] Mobile phone expansion could disrupt keyweather satellites (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 25 Jul 2016 15:57:11 +0000
The best test would be to bring along a portable or mobile HF receiver and see what the background noise is like. They may have tried BPL, but discontinued it but haven't pulled all the hardware off
/archives//html/RFI/2016-07/msg00079.html (8,618 bytes)

34. Re: [RFI] Balanced-line antennas and couplers (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 8 Aug 2016 01:33:03 +0000
Regarding thermocouple RF ammeters, from my experience the calibration between two identical meters (same range, same manufacturer, same type number) can vary considerably. The best way to check is t
/archives//html/RFI/2016-08/msg00043.html (12,459 bytes)

35. Re: [RFI] Balanced-line antennas and couplers (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 8 Aug 2016 04:18:39 +0000
"Tuned feedline" means the load on the transmission line is different from the surge impedance, so it operates with substantial standing waves and normally must be used with some kind of a tuner. Th
/archives//html/RFI/2016-08/msg00045.html (9,354 bytes)

36. [RFI] Window Air Conditioner Advice Wanted (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Fri, 13 Jul 2018 02:57:04 +0000
The window a/c in my shack finally gave up the ghost after 40 years of reliable service. I need a replacement right away, since especially with the station equipment running it gets too hot in summer
/archives//html/RFI/2018-07/msg00069.html (8,915 bytes)

37. Re: [RFI] Window Air Conditioner Advice Wanted (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Fri, 13 Jul 2018 22:58:33 +0000
Shack is 24' X 32' with 12' ceiling (formerly a one-room school house). Building is unshaded in direct sunlight in afternoon. QRO transmitters and other station equipment give off considerable heat.
/archives//html/RFI/2018-07/msg00090.html (8,730 bytes)

38. Re: [RFI] FW: After 40 years of searching, scientists identify the key flaw in solar panel efficiency (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Wed, 12 Jun 2019 18:42:15 +0000
What does this have to do with RFI? Doesn't most if not all the RFI hash from solar panels emanate from the inverter, not the solar cells themselves? _______________________________________________ R
/archives//html/RFI/2019-06/msg00036.html (7,079 bytes)

39. [RFI] Mr Cool Ductless Mini Split (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Sat, 31 Aug 2019 16:07:55 +0000
I just installed a 24k BTU DIY model to replace the old window unit in the shack. It works great so far and is whisper quiet acoustically. No RFI on any band with my beverage, or dipole located about
/archives//html/RFI/2019-08/msg00074.html (6,860 bytes)

40. Re: [RFI] Swimming Pool Pump RFI (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Fri, 26 Jun 2020 17:28:31 +0000
I recently installed a Mr Cool mini-split air conditioner in the shack. It works great and is very quiet (acoustically). It doesn't affect any of my outdoor antennas, but I have to turn it off when u
/archives//html/RFI/2020-06/msg00031.html (9,246 bytes)


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