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Total 9 documents matching your query.

1. [RFI] 40m (and other) noise (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Fri, 10 Apr 2009 06:12:24 -0500
I have recently started hearing a noise 24/7 on 40m. The noise is heard about every 11khz and randomly moves up or down a khz or so. Best I can tell it covers from about 6.910mhz to 8.040mhz I also h
/archives//html/RFI/2009-04/msg00012.html (7,053 bytes)

2. [RFI] update <was> 40m (and other) noise (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Fri, 10 Apr 2009 20:39:22 -0500
neighbor came home this afternoon and the noise changed it disappeared from 40m, and changed from light noise on 30m (compared to 40m) to very distinct noise humps on 30m then about an hour or 2 late
/archives//html/RFI/2009-04/msg00020.html (7,939 bytes)

3. Re: [RFI] update <was> 40m (and other) noise (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Sat, 11 Apr 2009 14:02:55 -0500
well we have some progress working with the neighbor over the phone, while I watched the pan adapter, started with shutting the apartment down at the breaker box and finally found, his cell phone cha
/archives//html/RFI/2009-04/msg00022.html (8,086 bytes)

4. [RFI] Coaxial Choke (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Tue, 14 Apr 2009 17:18:55 -0500
Does the common coaxial choke do the same thing as the high dollar ones? Particularly if you are only running 100w? (160m-10m) I forget the length now, but it's in the handbooks, just looked 10 foot
/archives//html/RFI/2009-04/msg00041.html (6,930 bytes)

5. Re: [RFI] Coaxial Choke (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Tue, 14 Apr 2009 17:53:16 -0500
from the 2008 handbook Table 21.4 Effective Choke (Current Baluns) Wind the indicated length of coaxial feed line into a coil (like a coil of rope) and secure with electrical tape. The balun is most
/archives//html/RFI/2009-04/msg00042.html (7,671 bytes)

6. Re: [RFI] Coaxial Choke (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Tue, 14 Apr 2009 21:54:15 -0500
that was the fun part, you have to do the math and see how many turns on what coil form would use up the number of feet required. I used one of the big plastic Folgers Coffee cans which is about 6 in
/archives//html/RFI/2009-04/msg00045.html (7,665 bytes)

7. [RFI] beating a dead horse - 40m noise (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Tue, 21 Apr 2009 16:40:59 -0500
Same old story, noise is not strictly limited to 40m, it's just that is where I have been doing my sleuthing trying to figure out what it actually is. now for the next chapter, pics of the noise usin
/archives//html/RFI/2009-04/msg00064.html (7,896 bytes)

8. Re: [RFI] where to buy FairRite? (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Mon, 27 Apr 2009 18:37:00 -0500
since when has doubling the safety margin on something become so readily worthy of such attacks. I'm beginning to wonder if I need to look through the archives, to see if I cn find the root of all th
/archives//html/RFI/2009-04/msg00072.html (7,966 bytes)

9. [RFI] Garage door rfi noise on receive (score: 1)
Author: Sam Morgan <ka5oai@gmail.com>
Date: Tue, 09 Jun 2009 21:31:16 -0500
I am in the process of working with my local utility company chasing a noise that render the entire hf bands useless, unless a signal is over S9 +5-10. The noise starts as the day goes over 92 degree
/archives//html/RFI/2009-06/msg00015.html (7,704 bytes)

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