Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[CQ\-Contest\]\s+TH7\s+Replacement\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[CQ\-Contest\]\s+TH7\s+Replacement\s*$/: 23 ]

Total 23 documents matching your query.

1. [CQ-Contest] TH7 Replacement (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Sun, 6 Aug 2017 16:48:25 -0500; My 28 year old TH7 needs to come down for maintenance, and I'm told the trap end caps MFJ now sells don't last long. I also may be just a matter of luck that no bugs have moved into any of the traps.; /archives//html/CQ-Contest/2017-08/msg00030.html (6,964 bytes)
2. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Charles Harpole <hs0zcw@gmail.com>; Date: Sun, 6 Aug 2017 19:21:44 -0700; For your situation, the Skyhawk will likely give similar performance but not quite the bandwidth. How do the center drivens keep from banging together in wind? Suggest you consider a long log periodi; /archives//html/CQ-Contest/2017-08/msg00032.html (8,952 bytes)
3. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: S57AD <mirko.s57ad@gmail.com>; Date: Mon, 7 Aug 2017 14:09:29 +0200; Or OptiBeam OB 11-3, if available in your country. Nearly same as SkyHawk, with one element more on ten. 73, Mirko S57AD -- Mirko S57AD _______________________________________________ CQ-Contest mail; /archives//html/CQ-Contest/2017-08/msg00035.html (10,416 bytes)
4. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Kelly Taylor <ve4xt@mymts.net>; Date: Mon, 7 Aug 2017 07:58:18 -0500; The Skyhawk uses insulating spacers to keep the drivens separate. LPDAs offer wide coverage but at expense of gain. The only thing about Skyhawk that might give some users pause is the use of blind r; /archives//html/CQ-Contest/2017-08/msg00037.html (10,477 bytes)
5. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Stein-Roar Brobakken <post@lb3re.com>; Date: Mon, 7 Aug 2017 16:30:59 +0200; Hi Just coat the end caps with 2 component epoxy primer/glue... I did on several antennas to prevent UV ligth to break down the mechanical / plastic. Best Regards, Stein-Roar Brobakken LB3RE K3RAG ww; /archives//html/CQ-Contest/2017-08/msg00038.html (10,082 bytes)
6. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: donovanf@starpower.net; Date: Mon, 7 Aug 2017 12:49:08 -0400 (EDT); Hi Scott, The 24 foot boom JK Antennas Mid-Tri is worthy of your consideration. https://jkantennas.com/jkmidtri.html 73 Frank W3LPL -- Original Message -- ____________________________________________; /archives//html/CQ-Contest/2017-08/msg00039.html (8,804 bytes)
7. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Mon, 7 Aug 2017 10:59:07 -0700; If you don't need to tri-plex it to two radios, it's hard to beat a SteppIR. My neighbor K6XX has wrangled my straight 3-el at the top of my 120 ft tower without difficulty. Standard procedure is to; /archives//html/CQ-Contest/2017-08/msg00043.html (9,825 bytes)
8. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Barry <w2up@comcast.net>; Date: Mon, 7 Aug 2017 12:38:16 -0600; Rule #1 of minimizing maintenance: Don't put moving parts somewhere where they are hard to get to for repair/replacement. Barry W2UP On 8/7/2017 11:59 AM, Jim Brown wrote: If you don't need to tri-pl; /archives//html/CQ-Contest/2017-08/msg00044.html (11,219 bytes)
9. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Mon, 7 Aug 2017 15:29:32 -0400; I would second the JK. Made in USA and built like a tank. 73 Ria, N2RJ _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.contesting.com/ma; /archives//html/CQ-Contest/2017-08/msg00045.html (10,292 bytes)
10. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Mon, 7 Aug 2017 14:47:14 -0500; Besides the maintenance issues, the SteppIR won't do the instant band changes I do all the time in contests. Not SO2R, but my station is set up to change bands as fast as the K3 can. That's become a; /archives//html/CQ-Contest/2017-08/msg00047.html (11,749 bytes)
11. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Mon, 7 Aug 2017 13:05:43 -0700; My (straight) SteppIR has been up for 8+ years without a single problem I can blame on the antenna. I consider those straight antennas to be a pretty mature product. Can't say the same for the looped; /archives//html/CQ-Contest/2017-08/msg00048.html (9,115 bytes)
12. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Wayne Kline <w3ea@hotmail.com>; Date: Mon, 7 Aug 2017 20:02:19 +0000; Scott, I have a Skyhawk up last fall. Replacing a 5/5/5 20 meter stack..... Tower shrunk from 150' to 7er of Skyhawk's over the years. I have installed a number of triband antennas all flavors of F-1; /archives//html/CQ-Contest/2017-08/msg00049.html (11,592 bytes)
13. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Mon, 7 Aug 2017 13:22:17 -0700; Right. But the straight 3-el DOES go between adjacent bands pretty quickly. My station is has 3-el SteppIR for 20-6, and mono-banders for 20, 15, and 10 on a much lower tower, and I mostly work SO2R.; /archives//html/CQ-Contest/2017-08/msg00051.html (8,710 bytes)
14. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Mon, 07 Aug 2017 21:04:05 +0000; I have had a SteppIR (MonstIR, the big one like what they had at 6Y1V). I do agree that the instant band changes and reliability are a concern. The plastic gears were problematic. Supposedly they've; /archives//html/CQ-Contest/2017-08/msg00052.html (10,182 bytes)
15. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Tue, 8 Aug 2017 08:10:32 -0400; Gain is a function of boom length however you need enough parasitic elements for the Yagi to work. The MonstIR DB42 has a boom length of 42.5 feet with four loop elements and two straight elements. T; /archives//html/CQ-Contest/2017-08/msg00057.html (8,875 bytes)
16. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Mike Ricketts <mike.nd9g@gmail.com>; Date: Tue, 8 Aug 2017 09:24:55 -0500; I think the DB42 has 5 adjustable elements (3 loop and 2 straight). I believe there are also a few smaller fixed elements in between. 73, Mike ND9G _______________________________________________ CQ-; /archives//html/CQ-Contest/2017-08/msg00061.html (9,904 bytes)
17. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Tue, 8 Aug 2017 10:20:01 -0400; I have the big one like what they had at 6Y1V. It is not made anymore. It is 70ft across straight elements. Full sized on 40. The DB42 is called the MonstIR but it's not the actual, original MonstIR.; /archives//html/CQ-Contest/2017-08/msg00065.html (9,938 bytes)
18. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Tue, 8 Aug 2017 13:26:02 -0400; It has 5 elements, a relay switching network and passive fixed elements for 6m. Ria, N2RJ _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://list; /archives//html/CQ-Contest/2017-08/msg00066.html (10,434 bytes)
19. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Tue, 08 Aug 2017 18:17:39 +0000; I have a good crane and rigging guy. There are others who use a tram or tilt over. _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.conte; /archives//html/CQ-Contest/2017-08/msg00067.html (12,689 bytes)
20. Re: [CQ-Contest] TH7 Replacement (score: 1): Author: Ria Jairam <rjairam@gmail.com>; Date: Tue, 8 Aug 2017 20:56:37 -0400; I get the impression that SteppIR viewed it as going past the point of diminishing returns. They could get almost the performance with much less wind loads using the trombone elements, thus the DB-36; /archives//html/CQ-Contest/2017-08/msg00080.html (10,528 bytes)

Current List: 1 - 20
Page: [1] [2]