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Total 30 documents matching your query.

1. Topband: Reactance problem (score: 1)
Author: (Bill Gerhold)
Date: Tue, 12 Mar 2002 20:47:24 -0500
Why would the reactance change on a ground mounted vertical for no apparent reason. I used to get a resonance point at 1.840mhz. Lowest SWR was at 1.850. All was fine until about 1 month ago. Checkin
/archives//html/Topband/2002-03/msg00112.html (7,988 bytes)

2. Topband: Reactance problem (score: 1)
Author: (Bill Gerhold)
Date: Wed, 13 Mar 2002 11:01:01 +0000
A few have suggested my MFJ-259b is off or inaccurate. This does not seem to be the case. In order to verify the MFJ is ok, I connected it to a dummy load and was able to measure zero reactance immed
/archives//html/Topband/2002-03/msg00118.html (8,714 bytes)

3. Topband: Small lot and small antennas, but you can stillwork the DX ! (score: 1)
Author: (Bill Gerhold)
Date: Fri, 22 Mar 2002 03:32:57 +0000
Being a ham on a small lot, and not even using a vertical, I worked 23 countries and all 48 states in the winter season of 1999-2000. This was all done on SSB with a low 35' 160 meter wire dipole. Of
/archives//html/Topband/2002-03/msg00205.html (6,978 bytes)

4. Topband: Re: MFJ power line noise receiver or alternatives? (score: 1)
Author: (Bill Gerhold)
Date: Fri, 22 Mar 2002 11:56:13 +0000
I had a very similar problem here but finding the problem with a handheld AM broadcast band receiver was/is not the proper way to locate the source of the noise. My problem was originating from a bad
/archives//html/Topband/2002-03/msg00207.html (8,923 bytes)

5. Topband: Dipole Height (score: 1)
Author: (Bill Gerhold)
Date: Sun, 17 Feb 2002 12:48:22 -0500
For the first time in about 2 years, I measured the resonant frequency of my 160 meter dipole. I was surprised at the results but not completely. When I put the dipole up, I did not have an antenna a
/archives//html/Topband/2002-02/msg00104.html (6,830 bytes)

6. Topband: 160m band plan (score: 1)
Author: (Bill Gerhold)
Date: Sun, 24 Feb 2002 16:24:11 -0500
Not so, and I'm a complaining digital op. Many times CW ops on 160 will either totally ignore users of other modes or, are completely ignorant of internationally recognized frequencies (by gentlemen'
/archives//html/Topband/2002-02/msg00178.html (8,558 bytes)

7. Topband: RE: Digimodes (score: 1)
Author: (Bill Gerhold)
Date: Mon, 25 Feb 2002 03:09:48 +0000
Hi Tom, Yes I agree with everything you have said. While I am not an avid Digital mode op, the few times I have tried it were really not rewarding on 160 meters. Lack of activity mostly I would imagi
/archives//html/Topband/2002-02/msg00192.html (6,897 bytes)

8. Topband: Re: Topband Digimodes (score: 1)
Author: (Bill Gerhold)
Date: Mon, 25 Feb 2002 22:16:26 +0000
The IC-756pro has continuously variable filters from 3.6khz all the way down to 0 "zero" with the lowest usable 50hz. Works great on digimodes and CW. Sorry can't help with the 746. However, the new
/archives//html/Topband/2002-02/msg00213.html (6,529 bytes)

9. Topband: Radials and Snow (score: 1)
Author: (Bill Gerhold)
Date: Sun, 9 Dec 2001 07:40:09 -0500
Woke up this morning and had a new blanket of snow on the ground. About 2 inches. A thought came to me. My radials are on the ground (Poor Ground, rocks, mountain top), and are now covered with the s
/archives//html/Topband/2001-12/msg00028.html (6,632 bytes)

10. Topband: Elevating radials (score: 1)
Author: (Bill Gerhold)
Date: Wed, 10 Oct 2001 20:09:45 -0400
I used elevated radials on an elevated (3 foot off the ground) 80 meter vertical. I ran the radials at a 45 degree angle from the base of the vertical up to a 10 foot height and then horizontal from
/archives//html/Topband/2001-10/msg00080.html (8,480 bytes)

11. Topband: Verticals and Radials (score: 1)
Author: (Bill Gerhold)
Date: Mon, 15 Oct 2001 15:09:54 -0400
What would be the radiation pattern of a vertical with ground radials in a 180 degree arc. That is, 60 radials on only (1) side of the vertical with no radials and average ground in the other 180 deg
/archives//html/Topband/2001-10/msg00111.html (6,847 bytes)

12. Topband: Shortened and Low Dipole (score: 1)
Author: (Bill Gerhold)
Date: Sun, 16 Sep 2001 07:43:02 -0400
While I agree that a vertical will do better than a dipole when working very weak DX due to it's low angle of radiation, a dipole will frequently outperform a vertical - at least at this QTH. I have
/archives//html/Topband/2001-09/msg00068.html (6,636 bytes)

13. Topband: Aluminum Tubing (score: 1)
Author: (Bill Gerhold)
Date: Sat, 2 Jun 2001 11:21:21 -0700
Is there a rule of thumb on how much distance aluminum tubing should be inserted into each other section? I am putting up an all aluminum 80 meter vertical (66 ft) guyed at 20 feet and 40 feet and is
/archives//html/Topband/2001-06/msg00005.html (7,244 bytes)

14. Topband: Aluminum Tubing (score: 1)
Author: (Bill Gerhold)
Date: Sun, 3 Jun 2001 14:14:43 -0700
I want to thank all who responded to my question of how much tubing should be inserted into the next size for a good mechanical connection. The over whelming response was "3 times the diameter". This
/archives//html/Topband/2001-06/msg00008.html (6,872 bytes)

15. Topband: Feed Line (score: 1)
Author: (Bill Gerhold)
Date: Sun, 10 Jun 2001 21:57:52 -0700
I do not recall ever seeing any antenna projects or designs utilizing open wire or ladder line to feed a 1/4 wave vertical. I would like to feed my 80 meter vertical with ladder line so I can use it
/archives//html/Topband/2001-06/msg00015.html (7,162 bytes)

16. Topband: 160 vertical, radials and beverages (score: 1)
Author: (Bill Gerhold)
Date: Sun, 6 May 2001 23:05:21 -0700
I have been doing a lot of reading about verticals, beverage antennas and elevated radials. I am currently homebrewing an all aluminum 62 foot 80 meter vertical utilizing elevated radials. Then it oc
/archives//html/Topband/2001-05/msg00009.html (8,247 bytes)

17. Topband: Lightning Arrestor (score: 1)
Author: (Bill Gerhold)
Date: Sat, 12 May 2001 16:35:26 -0700
As an electrical engineer working in power distribution, this puts me in the unique position of obtaining used, old, discarded high voltage and low voltage insulators and other equipment. I also get
/archives//html/Topband/2001-05/msg00024.html (7,188 bytes)

18. Topband: mounting ladder line (score: 1)
Author: (Bill Gerhold)
Date: Mon, 28 May 2001 20:54:54 -0700
Do what I did, use your vertical PVC pipe with a PVC "T" connection on the top. Run your ladder line through it. Please do not use and conducting materials at all near or through the ladder line. A n
/archives//html/Topband/2001-05/msg00080.html (7,503 bytes)

19. Topband: 1.700 - 1.800 mhz (score: 1)
Author: (Bill Gerhold)
Date: Fri, 2 Feb 2001 23:06:02 -0800
Does anyone know what service is using the frequencies between 1.7 and 1.8 mhz? I am in north western New Jersey, and I seem to be picking up what sounds like high speed data transmissions. These sig
/archives//html/Topband/2001-02/msg00010.html (7,032 bytes)

20. Topband: Inverted "L" continues (score: 1)
Author: (Bill Gerhold)
Date: Fri, 2 Feb 2001 23:13:06 -0800
Thanks to all who helped with my questions about the inverted "L" I plan to erect soon. I have just one more question (i think). This whole antenna will be constructed on the side a hill with about a
/archives//html/Topband/2001-02/msg00011.html (7,122 bytes)

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