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Total 279 documents matching your query.

101. Re: [RFI] Strange signal on 30M (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Fri, 03 Apr 2009 23:41:04 -0500
Ahhh, the French military, well according to the jokes about their modern military experiences they may not know that they are on 30M. ;-) -- Thanks! & 73, doc, KD4E FS/Swap/Wanted: http://kd4e.com/s
/archives//html/RFI/2009-04/msg00007.html (8,256 bytes)

102. Re: [RFI] 40m (and other) noise (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Fri, 10 Apr 2009 16:10:42 -0500
Anyone check the sound system in the US House of Representatives? Everything else coming out of that place is just noise these days ... -- Thanks! & 73, doc, KD4E FS/Swap/Wanted: http://kd4e.com/swap
/archives//html/RFI/2009-04/msg00019.html (8,287 bytes)

103. Re: [RFI] Fairrite at Dayon? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Tue, 05 May 2009 15:28:40 -0500
This was just posted to QTH - are these among those you'd recommend and if so is the price reasonable? -- 1.53" OD, 0.77" ID and 0.5" thick cores that have a mu of 2700, 4700mH per 1k turns. Lots of
/archives//html/RFI/2009-05/msg00003.html (8,032 bytes)

104. Re: [RFI] You gotta LOVE IT - UVerse Blaming Hams (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Fri, 08 May 2009 17:10:11 -0500
You really should forward that threat to the ARRL so that they may speak to the FCC about it. UVerse is responsible for keeping their systems clean in and out - we are not responsible for them produc
/archives//html/RFI/2009-05/msg00005.html (8,126 bytes)

105. Re: [RFI] Noisy Noisy Noisy Front End (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 21 May 2009 11:26:39 -0500
Here in Hudson in West Central Florida, there are spots where the RFI from the poorly installed cable-tv lines is so loud that you can hear it completely desense the front-end of the AM-BC tuner in y
/archives//html/RFI/2009-05/msg00032.html (8,828 bytes)

106. Re: [RFI] [FT-857] Noisy Noisy Noisy Front End (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 21 May 2009 23:52:16 -0500
We drove a Chevy HHR briefly as a loaner - tell me, where in that rolling breadbox do you put a rig? ;-) I heard today of a study wherein which the smaller the government-imposed CAFE standards cause
/archives//html/RFI/2009-05/msg00034.html (7,987 bytes)

107. Re: [RFI] proper grounding the FT-857 (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Wed, 03 Jun 2009 16:52:09 -0500
Do you have any idea as to the loss injected by that device across the full spectrum? (I am guessing 6M may be the most noticeable). Just wondering ... I copied this to a couple of other lists where
/archives//html/RFI/2009-06/msg00001.html (7,702 bytes)

108. [RFI] Mast-mount TV Pre-Amp -- Avoiding RFI & Overload? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Wed, 03 Jun 2009 20:27:45 -0500
We are out in the woods and I need a mast-mount pre-amp for TV signals. This one is only $26. but I worry that it is junk which will fail early and may distort signals and fail to exclude Ham signals
/archives//html/RFI/2009-06/msg00002.html (7,676 bytes)

109. Re: [RFI] Mast-mount TV Pre-Amp -- Avoiding RFI & Overload? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Wed, 03 Jun 2009 23:04:20 -0500
Actually, a digital signal is either real good or it is real gone. Here in the fringe area we need help to get the signal strength we need for a consistent signal lock. If I could find a mast-mount p
/archives//html/RFI/2009-06/msg00003.html (8,520 bytes)

110. [RFI] Mast-mount TV Pre-Amp -- Avoiding RFI & Overload? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 04 Jun 2009 20:15:27 -0500
You have all given me some very good things to consider - sure appreciate the input! I will get together with my local Ham friend who is much better at these things than am I and see what we can whip
/archives//html/RFI/2009-06/msg00010.html (14,345 bytes)

111. Re: [RFI] Mast-mount TV Pre-Amp -- Avoiding RFI & Overload? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 04 Jun 2009 23:00:58 -0500
We are north of Tampa and all of the signals come generally from that direction. Arm-strong rotation of the beam requires only a tiny movement to bring one group of stations in strong and lose sever
/archives//html/RFI/2009-06/msg00013.html (11,645 bytes)

112. [RFI] EMP, Static, & Magnetic field Vulnerability of Meters? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Tue, 16 Jun 2009 10:24:44 -0500
Are some meter-movements safer around EMP, static, & magnetic fields? -- Thanks! & 73, doc, KD4E FS/Swap/Wanted: http://kd4e.com/swapn.html Free OS : http://www.PuppyLinux.com Personal: http://kd4e.c
/archives//html/RFI/2009-06/msg00032.html (7,259 bytes)

113. [RFI] Anyone observed damage to the "guard wire grounds"? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 10:34:17 -0500
Someone posted this to another list and it is something I have not noticed nor have considered re. RFI and grid surge protection. Is he correct? -- How secure is the #6 solid copper wire that runs do
/archives//html/RFI/2009-06/msg00034.html (8,742 bytes)

114. [RFI] HF RFI from digital displays on big Farad caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 12:13:30 -0500
I am going to be using a somewhat modified Messenger M4V solid state amp for 160-10M. I will be adding a bandswitched filter, a SWR protection circuit, some bias mods, and will make various other twe
/archives//html/RFI/2009-06/msg00035.html (7,603 bytes)

115. Re: [RFI] HF RFI from digital displays on big Farad caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 15:02:08 -0500
Excellent info, thanks! Oh, can you share the brand and model, please? Perhaps they vary model to model. -- Thanks! & 73, doc, KD4E FS/Swap/Wanted: http://kd4e.com/swapn.html Free OS : http://www.Pup
/archives//html/RFI/2009-06/msg00037.html (7,654 bytes)

116. [RFI] Big Farad versus Hybrid Caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 19:35:47 -0500
Ignoring the hype and the prices - can someone address the difference in technology between a big Farad cap and a Hybrid? http://www.hifisoundconnection.com/Shop/Control/fp/tcat/28044/SFV/30046 Somet
/archives//html/RFI/2009-06/msg00038.html (8,128 bytes)

117. Re: [RFI] Big Farad versus Hybrid Caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 20:48:49 -0500
Again, *ignore* the hype and look at the technology. The technology works because I own the tiny Gamma PS that uses it: http://www.gammaresearch.net/hps-1a.html Here is a paper from the early days of
/archives//html/RFI/2009-06/msg00040.html (9,748 bytes)

118. Re: [RFI] Big Farad versus Hybrid Caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Thu, 18 Jun 2009 21:07:24 -0500
Probably so ... but they weigh 90lbs each! I am thinking that I can get away with one instead of two if I add one of these hybrids in-line. The app. is SSB - intermittent - so most of the peak demand
/archives//html/RFI/2009-06/msg00042.html (9,862 bytes)

119. Re: [RFI] Big Farad versus Hybrid Caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Fri, 19 Jun 2009 15:03:29 -0500
I don't care about the eye candy, just the functional value of a smaller and lighter and less-costly device to deal with the load-spikes from SSB modulated HF signal through a solid state amp. -- Tha
/archives//html/RFI/2009-06/msg00047.html (9,307 bytes)

120. Re: [RFI] Big Farad versus Hybrid Caps? (score: 1)
Author: kd4e <doc@kd4e.com>
Date: Fri, 19 Jun 2009 15:06:30 -0500
I just used "big Farad cap" as a nickname because I figured everyone would know to what I was referring. I need to manage the load-spikes from a SSB modulated HF signal through a solid state RF amp.
/archives//html/RFI/2009-06/msg00048.html (10,024 bytes)


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