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References: [ +from:herbs@vitelcom.net: 620 ]

Total 620 documents matching your query.

201. Re: Topband: PJ2T on 160 Meters: Europe Before Sunset (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sun, 07 Feb 2010 17:12:48 -0400
Jeff, K8ND write in part. Remember, this is from 12-degrees North of the Equator, in the bright Jeff, I have similar experiences here before sunset......hear a lot and work nothing. Remember now with
/archives//html/Topband/2010-02/msg00089.html (9,669 bytes)

202. Re: Topband: help for XE2S (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Wed, 10 Feb 2010 15:27:51 -0400
Larry, he can also try 4-400A's or 4-400C's with the thoriated tungsten filament so he can turn PA voltage on at the same time. Or put in a time delay relay to allow filaments to get warm before plat
/archives//html/Topband/2010-02/msg00107.html (7,850 bytes)

203. Re: Topband: Inverted L (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 12 Feb 2010 09:30:03 -0400
John, You don't need to put up anything since your 75 foot tower with a C-3 on top will make a much better TX antenna on 160 with a shunt fed or cage feed. There is one thing about the Force 12 C-3 i
/archives//html/Topband/2010-02/msg00116.html (9,695 bytes)

204. Topband: [Fwd: Re: +12V T/R sequencing of ICE 184A preamp] (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 12 Feb 2010 15:43:47 -0400
Brian, If the pre-amp is located, I presume where the Beverage or flag, pennant, etc are located, at least a half wave away and out of the induction field of the TX antenna your pre-amp should be abl
/archives//html/Topband/2010-02/msg00120.html (8,694 bytes)

205. Re: Topband: Low activity (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 02 Mar 2010 21:23:18 -0400
Especially when I worked EY8MM last night and he gave me 599. His signal was the best I have ever heard him. But during the CQWWSSB I had to really struggle to get anything to the East of me. Herb, K
/archives//html/Topband/2010-03/msg00011.html (8,000 bytes)

206. Re: Topband: Help Needed Decoupling the TX Antenna (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Wed, 10 Mar 2010 12:32:14 -0400
uired. Some have reported success with inexpensive automotive DC relays. They can handle the current but for TX voltage I haven't any idea...as it all depends on your feed/match system. Good luck, He
/archives//html/Topband/2010-03/msg00057.html (8,587 bytes)

207. Re: Topband: Sudden increase in noise level on Topband.. (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Wed, 10 Mar 2010 16:58:20 -0400
Gentlemen Manufacturing such noise generating devices and exporting them to the USA may violate several sections of the U.S. Code and FCC regulations. I had heard that complete embargo's of such equi
/archives//html/Topband/2010-03/msg00062.html (9,411 bytes)

208. Re: Topband: CLARIFICATION: Help Needed Decoupling the TX Antenna (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Mon, 15 Mar 2010 16:15:00 -0400
Eric, most microwave relays won't take HV that exists between an open wire in a normally resonant Marconi where reactances, current and voltages are excessive depending on the power you run and the d
/archives//html/Topband/2010-03/msg00073.html (9,062 bytes)

209. Re: Topband: A desert ? (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Wed, 31 Mar 2010 07:46:49 -0400
Phil, You were on at 0900 this morning peaking at 449. I have been able to work ZL3IX at east with 589 both ways at this time so if the tropical static is not to high you should be able to get some r
/archives//html/Topband/2010-03/msg00159.html (7,945 bytes)

210. Re: Topband: A desert ? (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Thu, 01 Apr 2010 18:55:41 -0400
Glad to Help Mike, Go to fcc.gov and select the media page where you can list by geographic district and frequency range all AM radio stations in the United States. Select Audio Divison Select AM Ra
/archives//html/Topband/2010-04/msg00006.html (8,143 bytes)

211. Re: Topband: switch for RX antennas (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 03 Apr 2010 17:27:09 -0400
Jorge, I used here the Dynair push button video switches that are used in TV stations to switch video or monitors to different 75 ohm source material. I currently have in the RX line a 12X1. Nice thi
/archives//html/Topband/2010-04/msg00021.html (8,649 bytes)

212. Re: Topband: Staples (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 06 Apr 2010 10:38:31 -0400
A good source of "free" wire are discarded sections of CATV cable in the company dumpster...where you can use a pocket knife peel off the messenger cable which can be prepared as needed for the size
/archives//html/Topband/2010-04/msg00042.html (7,876 bytes)

213. Re: Topband: deterioration of RG-6 (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 06 Apr 2010 16:40:23 -0400
Pete, Yes some brands or off brands of RG-6 sucks up moisture like a sponge. They are a foam product and.with diurnal sunlight heat and night time cooling on the jacket laying out in the sun during t
/archives//html/Topband/2010-04/msg00046.html (12,250 bytes)

214. Re: Topband: Top Loaded Vertical (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 04 May 2010 08:51:04 -0400
Charlie remember any top loading connected that far (20') below the top reduces the over all vertical element height above that point and you will then end up with a 40' top loaded vertical rather th
/archives//html/Topband/2010-05/msg00013.html (8,897 bytes)

215. Re: Topband: K3NA Loop Array (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Thu, 24 Jun 2010 06:56:58 -0400
Very interesting especially since all my Beverages are directly adjacent to a huge Salt Pond some terminating about 500 feet away. Under each Beverage the water table (of brackish water) is only abou
/archives//html/Topband/2010-06/msg00068.html (15,687 bytes)

216. Re: Topband: Shunt-fed tower vs. T-vertical (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 13 Jul 2010 06:48:20 -0400
Herb Schoenbohm, KV4FZ _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2010-07/msg00058.html (7,926 bytes)

217. Re: Topband: Spam:****, Re: Shunt-fed tower vs. T-vertical (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 13 Jul 2010 11:11:40 -0400
No the cage can be shorter and actually end at the 30 foot level...but you will have to check the base impedance to design the proper match. At least more than a half wave to reduce interaction espec
/archives//html/Topband/2010-07/msg00061.html (8,795 bytes)

218. Topband: Shunt-fed tower vs. T-vertical (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Wed, 14 Jul 2010 10:06:13 -0400
A 48 foot pole on 160 without any top loading will result in low feed point impedence and low efficiency even with a good silver plated loading coil. It still may be better for DX than a low dipole.
/archives//html/Topband/2010-07/msg00070.html (8,900 bytes)

219. Re: Topband: Elevated Feedline for RX (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Mon, 20 Sep 2010 13:21:45 -0400
73, Herb Schoenbohm, KV4FZ _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2010-09/msg00061.html (8,781 bytes)

220. Re: Topband: double L antenna (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 28 Sep 2010 11:32:38 -0400
73, Herb Schoenbohm, KV4FZ _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2010-09/msg00098.html (8,147 bytes)


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