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Total 12 documents matching your query.

1. Topband: Beverage Frustrations (score: 1)
Author: charlesh3@msn.com (Charles Hutton)
Date: Mon, 01 Jul 2002 14:03:29 +0100
Tom: I totally agree - it would be awfully unrealistic to trust the model, and I assumed everyone would feel the same way. What I was hoping to find out is what it is that causes NEC to tell us these
/archives//html/Topband/2002-07/msg00002.html (6,564 bytes)

2. Topband: Beverage Frustrations (score: 1)
Author: k4kyv@hotmail.com (Donald Chester)
Date: Wed, 26 Jun 2002 05:47:04 +0000
I have been noticing lately a dropoff in performance of my beverage. Lightning got my little toroidal transformer a few weeks ago, so I rewound it and this time wired it inside the base of an old tub
/archives//html/Topband/2002-06/msg00042.html (9,714 bytes)

3. Topband: Beverage Frustrations (score: 1)
Author: kb9cry@attbi.com (by way of Bill Tippett <btippett@alum.mit.edu>)
Date: Wed, 26 Jun 2002 14:30:10 +0100
I mount my terminating resistors in a small Radio Shack plastic project box which is attached to a short bamboo pole right at the ground rod at ground level. My antenna wires slopes down to that poin
/archives//html/Topband/2002-06/msg00043.html (8,822 bytes)

4. Topband: Beverage Frustrations (score: 1)
Author: jbattin@msn.com (jbattin)
Date: Wed, 26 Jun 2002 14:30:11 +0100
Regarding water in the box ... There is nothing watertight short of a true hermetic seal. When the temperature changes, a vacuum builds up inside the box and it sucks in humid air, that humid air con
/archives//html/Topband/2002-06/msg00044.html (8,089 bytes)

5. Topband: Beverage Frustrations (score: 1)
Author: jon.zaimes@dol.net (Jon Zaimes AA1K)
Date: Wed, 26 Jun 2002 14:59:14 +0100
Hi Don, I just let my resistors hang in the open air. Most of the connections are soldered, or at least tightly twisted if I was in a hurry and didn't bring the blow torch/soldering gun along. The gr
/archives//html/Topband/2002-06/msg00045.html (9,359 bytes)

6. Topband: Beverage Frustrations (score: 1)
Author: k3ky@erols.com (k3ky@erols.com)
Date: Wed, 26 Jun 2002 12:11:27 -0400
how you solved the problem of This sounds like a situation where good use could be made of an epoxy encapsulant- just a suggestion. Condensation alone led to the open circuit? You must have used some
/archives//html/Topband/2002-06/msg00046.html (11,252 bytes)

7. Topband: Beverage Frustrations (score: 1)
Author: cdietz@swbell.net (Logan Dietz)
Date: Wed, 26 Jun 2002 15:16:24 -0500
I use a plastic container from the grocery store that is a Tupperware knock off. They are small with tight fitting lids and cost about a dollar or two. I run the leads through a hole in each side. Si
/archives//html/Topband/2002-06/msg00047.html (8,981 bytes)

8. Topband: Beverage Frustrations (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Wed, 26 Jun 2002 20:07:53 -0400
With a direct hit almost nothing eliminates problems, but I have have very good results just using the correct components. I can have Beverage hit so hard it actually melts the wire, and the only thi
/archives//html/Topband/2002-06/msg00048.html (11,498 bytes)

9. Topband: Beverage Frustrations (score: 1)
Author: eric@k3na.org (Eric Scace K3NA)
Date: Thu, 27 Jun 2002 19:33:37 -0400
Note that if epoxy encapsulation is used, the encapsulated components will be less tolerate to power losses. Encapsulation usually reduces the ability to dissipate heat into the atmosphere. -- Eric K
/archives//html/Topband/2002-06/msg00052.html (7,565 bytes)

10. Topband: Beverage Frustrations (score: 1)
Author: KN4LF, T. F. Giella" <kn4lf@arrl.net (KN4LF, T. F. Giella)
Date: Fri, 28 Jun 2002 09:05:33 -0400
The moisture that we find inside our plastic enclosures whether it be a matching transformer or grounding resistor, generally does not somehow get sucked in through a well sealed enclosure box. What
/archives//html/Topband/2002-06/msg00056.html (9,689 bytes)

11. Topband: Beverage Frustrations (score: 1)
Author: charlesh3@msn.com (Charles Hutton)
Date: Sun, 30 Jun 2002 02:58:01 +0100
With the most-perfect resistive termination, I agree that it seems to make no difference whether the resistor is on top or down at the ground rods. However, when I model Beverages with EZNEC and use
/archives//html/Topband/2002-06/msg00067.html (7,774 bytes)

12. Topband: Beverage Frustrations (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Sun, 30 Jun 2002 08:27:26 -0400
We have to be careful looking at very deep nulls with models. We often forget they are intentional shortcuts that use approximations designed to represent a system far too complex to calculate exact
/archives//html/Topband/2002-06/msg00069.html (8,666 bytes)


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