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Total 35 documents matching your query.

1. RE: [RFI] Broadband over Power Line (BPL) radio interference (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Fri, 16 Jul 2004 14:35:03 -0700 (PDT)
Wow. Now I see why so many people absolutely hate the league. Too much politicking and bureaucracy for the individualistic tastes of those particular hams. In any case, the league's web site is certa
/archives//html/RFI/2004-07/msg00037.html (10,753 bytes)

2. RE: [RFI] Broadband over Power Line (BPL) radio interference (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Fri, 16 Jul 2004 16:33:34 -0700 (PDT)
Nobody was being publically insultive until you took the tack of calling most hams unworthy of full disclosure. I thank you for later giving out the information of BPL trials. I'm certainly not going
/archives//html/RFI/2004-07/msg00047.html (12,491 bytes)

3. [RFI] DFing power line noise (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Mon, 19 Jul 2004 08:52:43 -0700 (PDT)
I have a problem where I get huge static crashes whenever the wind blows. This happens on all my antennas (leading me to think the problem is external) and I can hear it on at least 40-15M (I haven't
/archives//html/RFI/2004-07/msg00082.html (6,991 bytes)

4. Re: [RFI] Identify this pole hardware (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Wed, 30 May 2007 15:29:46 -0700 (PDT)
I'm looking forward to seeing the picture, but my guess is that there was a guy up on the pole doing a haphazard job around the same time you heard the explosion and it's just coincidental. -- Hisash
/archives//html/RFI/2007-05/msg00077.html (8,650 bytes)

5. Re: [RFI] CFL bulbs - NO WAY (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 18 Oct 2007 13:11:22 -0700 (PDT)
But if some of us purchase hybrids to promote the technology, which should improve. Otherwise they're going to generate RFI, which I think is the point of this list? -- Hisashi T Fujinaka - htodd@two
/archives//html/RFI/2007-10/msg00066.html (8,631 bytes)

6. [RFI] How do you DF intermittent wind RFI? (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Wed, 17 Feb 2010 12:35:51 -0800 (PST)
I'm sure it's something in the power lines, but wind is so gusty and intermittent itself that I'm not sure how to pinpoint the direction. I guess it's just going to take some patience, but any pointe
/archives//html/RFI/2010-02/msg00094.html (6,652 bytes)

7. Re: [RFI] Does a power pole generating RFI always generate ultrasonics? (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Tue, 8 Jun 2010 09:25:57 -0700 (PDT)
Look at the line from Oregon to So Cal and then do the math to see if it's a 1/4 wave stub. :) It needs to be DC. -- Hisashi T Fujinaka - htodd@twofifty.com BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95
/archives//html/RFI/2010-06/msg00019.html (9,777 bytes)

8. Re: [RFI] Original message and replying (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Fri, 20 Jan 2012 23:08:10 -0800 (PST)
It depends on the list, and whether you're using a mobile device and/or Outlook. It's all personal preference nowadays. On the Elecraft list, for example, the list moderator has an iPhone, I think, a
/archives//html/RFI/2012-01/msg00094.html (11,187 bytes)

9. Re: [RFI] Original message and replying (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Sat, 21 Jan 2012 13:20:31 -0800 (PST)
I'm not sure why I even posted to this. I guess I was bored. I'm also of the opinion that even those on dialup can stand having those extra bytes of data. And I've also decided you're an idiot. -- Hi
/archives//html/RFI/2012-01/msg00099.html (10,364 bytes)

10. Re: [RFI] Frequency-Specific Interference (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Tue, 28 Feb 2012 22:11:49 -0800 (PST)
Also, loop antennas are pretty well known. It wouldn't be hard to create a loop tuned at a specific frequency. Use it with a receiver and you can have a very directional null. -- Hisashi T Fujinaka -
/archives//html/RFI/2012-02/msg00039.html (9,699 bytes)

11. [RFI] The MFJ-856 worked wonders for me! (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Tue, 8 May 2012 22:51:51 -0700 (PDT)
I'm in the city of Portland and fairly near a foundry and zinc plating plant but S7 crackling seemed to be a bit more than I expected. Plus it was intermittent, mostly happening when the weather was
/archives//html/RFI/2012-05/msg00002.html (7,404 bytes)

12. Re: [RFI] Anyone ID the signal on 14.233? (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 10 May 2012 09:01:33 -0700 (PDT)
Yeah, well. One thing I've noticed is hearing DX on that frequency when no one else is on the band. There's usually someone on that freq. -- Hisashi T Fujinaka - htodd@twofifty.com BSEE(6/86) + BSChe
/archives//html/RFI/2012-05/msg00008.html (7,594 bytes)

13. Re: [RFI] MFJ-856 oddity (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Tue, 7 Aug 2012 22:30:45 -0700 (PDT)
Cool. Thanks for all your efforts. I've only had mine out once and I narrowed down the area (which happened to be right in front of my house) and I'm on my way to building an ultrasonic receiver out
/archives//html/RFI/2012-08/msg00035.html (12,090 bytes)

14. Re: [RFI] Ultrasonic Dish (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Wed, 2 Jan 2013 13:41:13 -0800 (PST)
Obviously receiver sensitivity is another important factor. I bought the Midnight Science RX2 and was not happy. The new RX3 is much more sensitive. I have no idea how it compares with the expensive
/archives//html/RFI/2013-01/msg00019.html (9,782 bytes)

15. Re: [RFI] Ultrasonic Dish (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Wed, 2 Jan 2013 15:08:27 -0800 (PST)
I'm just looking to tell WHICH POLE is arcing. The tool for that, as Lee said, is a VHF/UHF AM receiver, preferably with directional antenna. You find the pole with RF, specific hardware with ultras
/archives//html/RFI/2013-01/msg00026.html (11,372 bytes)

16. Re: [RFI] Link-coupled loop - more (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 3 Apr 2014 08:12:55 -0700 (PDT)
... I have done probably a thousand transmitter hunts mostly on 80m and 2m with a few on 10m and 70cm. I have competed in competitive ARDF hunts on 80m and 2m and I have also done many searches for R
/archives//html/RFI/2014-04/msg00043.html (8,910 bytes)

17. Re: [RFI] Keurig coffee vs Astron Rs35M (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 10 Apr 2014 10:40:43 -0700 (PDT)
The crowbar circuit trips on RF a lot. I've seen this on several Astrons I own. Lots of ferrite on the leads helps. Could you expand on that? Exactly what symptoms have you experienced? 73, Jim K9YC
/archives//html/RFI/2014-04/msg00083.html (9,175 bytes)

18. Re: [RFI] Keurig coffee vs Astron Rs35M (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 10 Apr 2014 12:54:51 -0700 (PDT)
What frequencies? When you say "lots of ferrites," did you wind turns through them, or just clamp them on? I've had issues on 40 and 15, and I think on 30. Definitely on 40, though with a couple of d
/archives//html/RFI/2014-04/msg00085.html (9,420 bytes)

19. Re: [RFI] Keurig coffee vs Astron Rs35M (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Thu, 10 Apr 2014 13:58:41 -0700 (PDT)
What frequencies? When you say "lots of ferrites," did you wind turns through them, or just clamp them on? I've had issues on 40 and 15, and I think on 30. Definitely on 40, though with a couple of d
/archives//html/RFI/2014-04/msg00087.html (11,427 bytes)

20. Re: [RFI] RF getting into 4-port wirelss router. (score: 1)
Author: Hisashi T Fujinaka <htodd@twofifty.com>
Date: Sun, 11 Jan 2015 21:42:56 -0800 (PST)
1G requires all four pair. If you're getting a good 1G connection, your pairs are electrically connected. If you have the pairs cross-connected, you may still have issues. As an electrician you shoul
/archives//html/RFI/2015-01/msg00055.html (12,538 bytes)


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