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301. Topband: Fwd: Re: Bev wire under a path? (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 06 Jan 2012 12:33:09 -0400
If looses are noticeable due to ground effect trench attenuation you can use a bigger conduit and a bunch of tennis balls with a hole drilled in the center as insulators to greatly improve the VF in
/archives//html/Topband/2012-01/msg00097.html (7,440 bytes)

302. Re: Topband: horiz TLDL for 80m (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 07 Jan 2012 21:02:07 -0400
Bob, IMHO what you described would be a linear loaded loop and the folded down wires should be at the top and the feed where you described. This avoids some feedline interaction. But remember such an
/archives//html/Topband/2012-01/msg00111.html (9,260 bytes)

303. Re: Topband: Preventing QRM (score: 1)
Author: "Herb Schoenbohm" <herbs@vitelcom.net>
Date: Tue, 10 Jan 2012 18:41:09 +0000
Brian, Join the Low Band Chat at ON4KST where you can get a good real time notification who is using which freqency for skeds or weak signal work. You can also let everyone know where you are as you
/archives//html/Topband/2012-01/msg00150.html (8,258 bytes)

304. Re: Topband: Caged Inv-L - Pros and Cons ? (Dan Bookwalter) (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Thu, 26 Jan 2012 14:28:24 -0400
Several NAB engineering papers have be written with field tests on the caged feed and demonstrate that whether you feed the cage or if merely connect the cage to the bottom of an insulated tower both
/archives//html/Topband/2012-01/msg00324.html (9,363 bytes)

305. Re: Topband: 90 ft or 120 ft vert fer TB (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Thu, 09 Feb 2012 19:28:05 -0400
A 120 vs. a 90 foot top loaded is a matter of choice since the RF doesn't really care since the 90 foot top loaded can look exactly like a 120 foot unipole. The 90 footer, depending on the amount of
/archives//html/Topband/2012-02/msg00079.html (8,282 bytes)

306. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 10 Feb 2012 12:34:45 -0400
Buzz, If you can find insulated #12 electrical solid wire it works great and handles well even with frequent hits with weed wackers here. One advantage of using insulate wire is that the velocity fac
/archives//html/Topband/2012-02/msg00098.html (8,892 bytes)

307. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 10 Feb 2012 13:07:37 -0400
Eddy, The insulated rabbit wire ground screen laying on the ground...may provide a very adequate solution to those with limited space. The price of this material is very reasonable compared to the ar
/archives//html/Topband/2012-02/msg00101.html (8,768 bytes)

308. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 10 Feb 2012 15:54:35 -0400
Answer: Because the FCC requires it as part of your AM application. Some stations that were required to protect a distant station on the same channel but away from the area they wanted to cover, even
/archives//html/Topband/2012-02/msg00116.html (9,435 bytes)

309. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 10 Feb 2012 18:13:05 -0400
Guy, What about the slant wire cause at least some directive component in the direction of the slant wire? Herb, KV4FZ _______________________________________________ UR RST IS ... ... ..9 QSB QSB -
/archives//html/Topband/2012-02/msg00120.html (9,588 bytes)

310. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 10 Feb 2012 19:37:02 -0400
No papers that I know of Guy, just the word of a consulting engineer who said he applied in the 60's and said it would not be considered as a solution for even a slight pattern control to protect ano
/archives//html/Topband/2012-02/msg00132.html (10,933 bytes)

311. Re: Topband: Radials help (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 10:00:49 -0400
What about a listing of truisms related to TB RX/TX antennas like: An effective Marconi radiator does not need to be resonant to be efficient or for a Marconi (vertical against ground) to work well i
/archives//html/Topband/2012-02/msg00149.html (11,439 bytes)

312. Re: Topband: Amazing Video of an extremely large circular array (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 10:45:04 -0400
Since some of these large antenna sites are no longer used it could be an ideal location for a SRD receiver feed (for 160 meters only) and with sufficient delay during contests to avoid their misuse,
/archives//html/Topband/2012-02/msg00151.html (7,845 bytes)

313. Re: Topband: Amazing Video of an extremely large circular array (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 13:42:03 -0400
Jack, As the all band demand would increase the load from a 100 users to thousands, I guess it would be up to the system capacity and if the antennas are capable of the bandwidth requirement at one g
/archives//html/Topband/2012-02/msg00159.html (9,647 bytes)

314. Re: Topband: Radials help (Mark van Wijk) (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 17:04:17 -0400
I disagree completely! I can quote a Chinese sage and author, his name escapes me......"A person can earn more talking to an intelligent man for an hour than by reading volumes for decades." I learn
/archives//html/Topband/2012-02/msg00169.html (8,542 bytes)

315. Re: Topband: Spam:****, Re: Amazing Video of an extremely large circular array (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 17:08:46 -0400
Sam Harris, W1FZJ/KP4 was my first 160 meter contact with Puerto Rico when I was active in Minnesota a half a century ago....and I still remember what a thrill it was with a DX-100 and an inverted L.
/archives//html/Topband/2012-02/msg00170.html (9,583 bytes)

316. Re: Topband: Radials help (Mark van Wijk) (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 11 Feb 2012 20:15:58 -0400
Mark, With all due respect to your comments.....I want to know what I am building and why it is worth the effort before I commence. Accordingly discussion on this reflector is invaluable digesting th
/archives//html/Topband/2012-02/msg00175.html (8,744 bytes)

317. Re: Topband: LOTW (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 17 Feb 2012 16:32:03 -0400
Jim, LOTW cost less than mailing cards and SASE's plus green stamps especially when 20 per cent never arrive at theor destination. Where LOTW has its drawbacks is the nickle and dime charges for mult
/archives//html/Topband/2012-02/msg00279.html (11,155 bytes)

318. Topband: Last news for 3C6A (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Fri, 24 Feb 2012 15:58:40 -0400
You guys are a bunch of whiners....as an even an hour on 160 at 2300 would have been good for openers with a another shot after the contest. Now you have forced by public pressure a possible new coun
/archives//html/Topband/2012-02/msg00370.html (8,352 bytes)

319. Re: Topband: 160M CONTEST SCORING (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 25 Feb 2012 19:37:58 -0400
Gentlemen, I have been calling CQ tonight for two hours and never received a single reply. This is with a 1/4 wave vertical, and Alpha 87A and 12 Beverages in every directions. Some nights on 160 the
/archives//html/Topband/2012-02/msg00401.html (8,788 bytes)

320. Topband: KP4TE QRP? (score: 1)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Mon, 27 Feb 2012 07:23:00 -0400
Topbanders need to find out how KP4TE does it with 5 watts as his signal from Florida was better than all other Florida stations running QRO Alpha's and full sized 1/4 verticals. He has some sort of
/archives//html/Topband/2012-02/msg00423.html (6,990 bytes)

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