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Total 23 documents matching your query.

1. [RFI] Keyboard RFI (score: 1)
Author: Charlie Gallo <Charlie@TheGallos.com>
Date: Thu, 22 Aug 2013 13:03:28 -0400
Hi Gang, So, got the SW Radio, and have found some interesting RFI sources around the house, have suppressed some, have a tech call in on another (the cable TV line has HORRID noise on it low, and if
/archives//html/RFI/2013-08/msg00012.html (7,707 bytes)

2. Re: [RFI] Keyboard RFI (score: 1)
Author: <w5gn@mxg.com>
Date: Thu, 22 Aug 2013 12:19:26 -0500
I've never heard a peep out of my Rosewill RK90001 with Cherry MX Blue "tactile" switches, apparently also well liked by gamers, and their positive feel is just my style, like the original IBM 3270 k
/archives//html/RFI/2013-08/msg00013.html (8,383 bytes)

3. Re: [RFI] Keyboard RFI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 22 Aug 2013 13:27:21 -0400
Rosewill RK90001 $89. with free shipping on ebay ... I've never heard a peep out of my Rosewill RK90001 with Cherry MX Blue "tactile" switches, apparently also well liked by gamers, and their positiv
/archives//html/RFI/2013-08/msg00014.html (7,871 bytes)

4. Re: [RFI] Keyboard RFI (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 22 Aug 2013 10:51:37 -0700
Most trash like this is radiated as a common mode signal by the cable -- in other words, the cable is a transmitting antenna. Before spending big bucks on a new keyboard, I would try a suitable commo
/archives//html/RFI/2013-08/msg00015.html (8,042 bytes)

5. Re: [RFI] Keyboard RFI (score: 1)
Author: Charlie Gallo <Charlie@TheGallos.com>
Date: Thu, 22 Aug 2013 14:19:44 -0400
Jim, Forgot to point out that I did try choking the cable, no good. In fact, for instance on this keyboard, cable comes out the RIGHT, signal highest on the left, Mid cable it is not measuring on the
/archives//html/RFI/2013-08/msg00016.html (7,828 bytes)

6. Re: [RFI] Keyboard RFI (score: 1)
Author: Michael Coslo <mjc5@psu.edu>
Date: Thu, 22 Aug 2013 15:03:35 -0400
There is either a bad tap, or you are on the end of an extender amp that has power enabled as if to power another amp further down the line. That is not good at all. As for keyboards, and mice I have
/archives//html/RFI/2013-08/msg00017.html (8,048 bytes)

7. Re: [RFI] Keyboard RFI (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Thu, 22 Aug 2013 14:12:36 -0500 (GMT-05:00)
Charlie, While the hash noise must truly be bad news, that 50V on the CATV line could be even worse. Is that 50VDC or 50VAC? If it is AC, it sounds as if there is significant leakage current (or coup
/archives//html/RFI/2013-08/msg00018.html (9,485 bytes)

8. Re: [RFI] Keyboard RFI (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 22 Aug 2013 12:46:04 -0700
On 8/22/2013 10:03 AM, Charlie Gallo wrote: One odd thing I found - every keyboard around the house (and I have different brands from cheap to Unicomp Model M keyboards) has horrid RFI_IF_ you are c
/archives//html/RFI/2013-08/msg00019.html (9,598 bytes)

9. Re: [RFI] Keyboard RFI (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 22 Aug 2013 16:00:58 -0400
While the hash noise must truly be bad news, that 50V on the CATV line could be even worse. Is that 50VDC or 50VAC? It sounds as if the cable company has a serious problem extending into the realm of
/archives//html/RFI/2013-08/msg00020.html (8,276 bytes)

10. Re: [RFI] Keyboard RFI (score: 1)
Author: Patrick <wa4tuk-rf@comcast.net>
Date: Thu, 22 Aug 2013 17:15:13 -0400
Charlie: I returned a refurbished (guaranteed like new) TV to the store years ago because a potential existed between the shield of the tuner input to ground. It would make a visable arc when the bra
/archives//html/RFI/2013-08/msg00021.html (8,928 bytes)

11. Re: [RFI] Keyboard RFI (score: 1)
Author: Charlie Gallo <Charlie@TheGallos.com>
Date: Thu, 22 Aug 2013 17:58:43 -0400
Well, there was some arcing at the ground block in the past, so I lifted the coax to slip on the ferrites, and the voltage is still there, but the current is low enough the ground takes care of it -
/archives//html/RFI/2013-08/msg00022.html (8,449 bytes)

12. Re: [RFI] Keyboard RFI (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 22 Aug 2013 15:30:54 -0700
On 8/22/2013 2:58 PM, Charlie Gallo wrote: Well, there was some arcing at the ground block in the past, so I lifted the coax to slip on the ferrites, and the voltage is still there, but the current i
/archives//html/RFI/2013-08/msg00023.html (10,355 bytes)

13. Re: [RFI] Keyboard RFI (score: 1)
Author: Charlie Gallo <Charlie@TheGallos.com>
Date: Thu, 22 Aug 2013 19:29:31 -0400
Well, as I took out a VOM and measured both the voltage and conductivity to bonded ground in my house, and the CATV shield to that ground, I think it's on the cable companies end - it isn't even hook
/archives//html/RFI/2013-08/msg00024.html (8,947 bytes)

14. Re: [RFI] Keyboard RFI (score: 1)
Author: dalej <dj2001x@comcast.net>
Date: Thu, 22 Aug 2013 18:52:38 -0500
I wish you luck in getting a technical person you can explain this to at your cable company. It might take some time and a few hoops with telephone robots or maybe more to get to the crux of the prob
/archives//html/RFI/2013-08/msg00025.html (9,430 bytes)

15. Re: [RFI] Keyboard RFI (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 22 Aug 2013 18:17:00 -0700
One way to get their serious attention is to tell them that cable created a big spark and gave you big shock. 73, Jim K(YC _______________________________________________ RFI mailing list RFI@contest
/archives//html/RFI/2013-08/msg00026.html (8,662 bytes)

16. Re: [RFI] Keyboard RFI (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 22 Aug 2013 23:48:43 -0400
On 8/22/2013 6:30 PM, Jim Brown wrote: On 8/22/2013 2:58 PM, Charlie Gallo wrote: Well, there was some arcing at the ground block in the past, so I lifted the coax to slip on the ferrites, and the vo
/archives//html/RFI/2013-08/msg00027.html (8,963 bytes)

17. Re: [RFI] Keyboard RFI (score: 1)
Author: Gary Smith <wa6fgi@yahoo.com>
Date: Fri, 23 Aug 2013 07:06:23 -0700
Logitech brand has been my favorite for years and years. Gary...wa6fgi About $100, and a great solution if you don't like the keyboard on your notebook. 73 Barry, W5GN --Original Message-- From: RFI
/archives//html/RFI/2013-08/msg00028.html (9,376 bytes)

18. Re: [RFI] Keyboard RFI (score: 1)
Author: Gary Smith <wa6fgi@yahoo.com>
Date: Fri, 23 Aug 2013 07:11:25 -0700
I would call the cable guy and let him know. And, I'll bet, when you tell them you have 50v at the connector they WILL get excited. Tell them you cat (or dog) walked by it and then unexpectedly barke
/archives//html/RFI/2013-08/msg00029.html (9,995 bytes)

19. Re: [RFI] Keyboard RFI (score: 1)
Author: dalej <dj2001x@comcast.net>
Date: Fri, 23 Aug 2013 15:02:14 -0500
I have a wireless Logitech K360 keyboard which I paid around $28 for. Excellent value and pretty good feel to the keys although a little stiff and no key feedback. I can't get a lot of speed with it,
/archives//html/RFI/2013-08/msg00030.html (10,856 bytes)

20. Re: [RFI] Keyboard RFI (score: 1)
Author: "Mike Ryan" <mryan001@tampabay.rr.com>
Date: Fri, 23 Aug 2013 16:10:47 -0400
I also use a Logitech wireless keyboard and mouse. In fact, I use three of them on three machines. It helps reduce the amount of RF pick up getting back INTO the machine. -M I have a wireless Logitec
/archives//html/RFI/2013-08/msg00031.html (11,490 bytes)

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