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References: [ +from:k8ri@rogerhalstead.com: 493 ]

Total 493 documents matching your query.

1. Re: [RFI] Kenwood TM-D700 (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 29 Oct 2008 18:54:32 -0400
I have one of the very early TM-D700s and have used it in a Trans Am, an old Eagle Summit, Toyota Prius, and Toyota 4-Runner. I've never had a moments problem with it. However, I have noticed in the
/archives//html/RFI/2008-10/msg00085.html (9,878 bytes)

2. Re: [RFI] Kenwood TM-D700 (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 29 Oct 2008 21:47:31 -0400
There are bulkhead, or feed through caps that will do this job nicely...if you can find them. They are a coaxial capacitor and vary from around a 1/2" to 2" in diameter and are several inches long (o
/archives//html/RFI/2008-10/msg00087.html (10,822 bytes)

3. Re: [RFI] CFL Bulbs (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Mon, 10 Nov 2008 18:19:09 -0500
I think that has to be a CYA like electronic equipment turned off on airplanes. I've been flying for years with ham rigs on board, and we've had CFLs for several. I've never had the rigs bother the n
/archives//html/RFI/2008-11/msg00004.html (8,139 bytes)

4. Re: [RFI] CFL Bulbs (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 12 Nov 2008 16:20:00 -0500
They are two different animals although the CFLs are fluorescents. With the ceiling fixtures you need those with good starters. I'm using 11, 8 foot long, 2 tube units in my shop. They start right do
/archives//html/RFI/2008-11/msg00018.html (12,531 bytes)

5. Re: [RFI] CFLs and LEDs (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 12 Nov 2008 18:13:55 -0500
About half of the 20 we have installed are either in ceiling fixtures of fully enclosed in glass globes. Nary a problem with heat of premature failure after the early ones. The one here in the den is
/archives//html/RFI/2008-11/msg00019.html (8,950 bytes)

6. Re: [RFI] CFL Bulbs (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 12 Nov 2008 23:33:10 -0500
I don't even light at -20-)) Roger (K8RI) _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2008-11/msg00021.html (8,206 bytes)

7. Re: [RFI] ethernet EMI revisited - questions for the pros (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 16 Nov 2008 01:48:53 -0500
Hi Mike, This kind of interference may be from the equipment rater than the connectors or cables as the equipment pretty much stops when nothing is hooked to it and although others will probably disa
/archives//html/RFI/2008-11/msg00026.html (14,279 bytes)

8. Re: [RFI] ethernet EMI revisited - questions for the pros (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 16 Nov 2008 21:27:50 -0500
I doubt that is what is happening. You have the basic clock frequencies in the chips generating or regenerating the basic data frame. Typical systems that run Gigabit also run 10 and 100 base-T. Whet
/archives//html/RFI/2008-11/msg00030.html (16,018 bytes)

9. Re: [RFI] Line Noise Spectragraph (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 19 Nov 2008 15:35:03 -0500
You say the pattern will look the same. Are you referring to the overall, general shape or the individual pulses and spikes? An electrical circuit arcing or the RF from a nearby broadcast station can
/archives//html/RFI/2008-11/msg00037.html (9,871 bytes)

10. Re: [RFI] Line noise (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 20 Nov 2008 17:05:29 -0500
Just remember what the FCC did to the family with the battery charger for the ATVs next door to the ham ...was it in Chicago? Depends on how well you wish to get along with your neighbor. 73 Roger (K
/archives//html/RFI/2008-11/msg00039.html (7,389 bytes)

11. Re: [RFI] ethernet EMI revisited - questions for the pros (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 22 Nov 2008 04:23:16 -0500
I realize you asked part of this before, but with more information now... If you are going to redo things what about first starting with upgraded routers and switches? Good, routers will run less tha
/archives//html/RFI/2008-11/msg00046.html (18,672 bytes)

12. Re: [RFI] [TenTec] OT Florescent Ballast's (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Mon, 08 Dec 2008 21:46:56 -0500
As an intentional radiator they are not allowed to cause interference and must take any they receive. The FCC is quite plain about this, but getting it enforced, or bucking heads with local officials
/archives//html/RFI/2008-12/msg00005.html (9,201 bytes)

13. Re: [RFI] Nasty RFI wiping out higher bands (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 16 Dec 2008 09:21:25 -0500
Seems to me we should be writing the manufacturers of the devices. Looks plain to me. If you have a digital device used in *anything* No device like this is exempt. They either don't know, or are blo
/archives//html/RFI/2008-12/msg00034.html (10,922 bytes)

14. Re: [RFI] Nasty RFI wiping out higher bands (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 16 Dec 2008 19:37:52 -0500
Good question. Like computers I'm sure there are those that are quiet and those that aren't. I'd go to a "full line" store , pick out the ones I, or more correctly, my wife was interested in, explain
/archives//html/RFI/2008-12/msg00048.html (15,989 bytes)

15. Re: [RFI] DirecTV to ground or not to ground (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 21 Dec 2008 16:01:43 -0500
All of my antennas but one meet their criteria and that is a 75 meter dipole being fed the legal limit less coax loss. It's #16 copper clad steel and even with no more loss than 75' of LMR600 and 30'
/archives//html/RFI/2008-12/msg00062.html (8,772 bytes)

16. Re: [RFI] DirecTV to ground or not to ground (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 23 Dec 2008 13:27:06 -0500
Cumulus in the area are not even necessary: Blowing dust, snow, rain and sometimes just wind can produce enough static charge to do this. I had a 1/4 wave vertical on 40 that was direct fed with coax
/archives//html/RFI/2008-12/msg00065.html (10,493 bytes)

17. Re: [RFI] Low RFI HDTV (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 23 Dec 2008 21:22:22 -0500
We had a discussion about "consumer appliances" over the past couple of weeks, but I can't find much in there about plasma sets. "Word is" they are much better now than the early ones. OTOH they are
/archives//html/RFI/2008-12/msg00068.html (7,800 bytes)

18. Re: [RFI] Low RFI HDTV (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 24 Dec 2008 02:22:13 -0500
Well, let me rephrase that then...I can set my duoband HT between the monitors so the antenna almost touches both. That puts the HT less than a foot from either of the Athlon X2 6000's and the Phenom
/archives//html/RFI/2008-12/msg00070.html (10,450 bytes)

19. Re: [RFI] DirecTV to ground or not to ground (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Fri, 26 Dec 2008 01:21:24 -0500
Although it's usually phrased this way, it's pretty much impossible to have an entire building rise to the same potential at the same times due to the dV/dT (rise and fall) for lightning strikes, BUT
/archives//html/RFI/2008-12/msg00079.html (12,339 bytes)

20. Re: [RFI] Low RFI HDTV (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 28 Dec 2008 23:39:03 -0500
There haven't been viewing angle issues with LCD's in over 3 years. I have a 2 1/2 year old 40" that has a clear viewing angle of 178 degrees horizontally and something like 150 vertically which mean
/archives//html/RFI/2008-12/msg00088.html (9,139 bytes)

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