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Total 276 documents matching your query.

1. RE: [TowerTalk] BN-86 (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Wed, 18 Feb 2004 12:40:20 -0500
When I had a TH-7, I replaced the BN-86 with the BN-4000. The latter worked fine for high-power contesting for years. The replacement was induced by a mechanical failure of the BN-86 that was unrelat
/archives//html/Towertalk/2004-02/msg00334.html (10,461 bytes)

2. RE: [TowerTalk] hard hats (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Tue, 2 Mar 2004 21:02:49 -0500
Possibly a rescue helmet. I use a Petzl: http://www.petzl.com/petzl/ProProduits?MotRecherche=Quick+Search&pays=0&Lang ue=en&Activite=22&Famille=3&SousFamille=0&Produit=430&Conseil=&ProduitAssoci e= 7
/archives//html/Towertalk/2004-03/msg00042.html (11,138 bytes)

3. RE: [TowerTalk] Re: Elevated Guy Anchors (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Wed, 3 Mar 2004 16:05:59 -0500
I'm not an expert in this, but one good reason is that it keeps the guys above head level. This reduces the chances of someone running or driving into a guy wire and getting hurt or damaging the guy.
/archives//html/Towertalk/2004-03/msg00062.html (10,510 bytes)

4. RE: [TowerTalk] Free HDX-555 tower, KT36XA & M2 rotor - a sweet deal! (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Wed, 10 Mar 2004 14:57:42 -0500
Great story, Don! Congrats on a great deal and a job well done. Murphy must've been asleep that morning. 73, Dick WC1M _______________________________________________ See: http://www.mscomputer.com f
/archives//html/Towertalk/2004-03/msg00139.html (8,329 bytes)

5. RE: [TowerTalk] W4AN Silent Key (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Mon, 5 Apr 2004 13:30:45 -0400
I was very shocked to receive this news. Bill was still a young man. It's a terrible tragedy for his young family and I pass along my deepest condolences to them. This is also a great loss for the co
/archives//html/Towertalk/2004-04/msg00060.html (11,275 bytes)

6. RE: [TowerTalk] Using Belden 9913 on a crankup? (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Tue, 27 Apr 2004 13:33:09 -0400
I would not use 9913 on a crankup tower. It's way too stiff and will bow out. Over time, the constant bending will cause the center conductor to migrate, affecting the cable impedance. I initially us
/archives//html/Towertalk/2004-04/msg00507.html (12,136 bytes)

7. RE: [TowerTalk] Alternate method, PL-259 on RG-8-type coax (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Thu, 29 Apr 2004 18:53:44 -0400
I don't like it. On many types of coax, the threads can barely be screwed over the jacket alone. If you wedge the shield braid in between, it will be shredded as you screw the connector on. 73, Dick
/archives//html/Towertalk/2004-04/msg00658.html (12,344 bytes)

8. RE: [TowerTalk] Rotator for MA550 (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Thu, 17 Jun 2004 10:55:11 -0400
The Ham IV will probably do the job. I use a Tailtwister on my MA-770MDP with a 4-el 20m yagi with a 30' boom and it works fine. It also worked fine for years with a TH-7, the windload and weight of
/archives//html/Towertalk/2004-06/msg00375.html (10,531 bytes)

9. RE: [TowerTalk] Rotator for MA550 (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Thu, 17 Jun 2004 11:10:17 -0400
I agree that the windload must be considerd. Technically, the MA550 should be able to handle the 4-el SteppIR. I believe the tower is now rated to either 60 MPH or 70 MPH with up to 10 sq. ft. of ant
/archives//html/Towertalk/2004-06/msg00376.html (13,013 bytes)

10. RE: [TowerTalk] GPS receivers (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Fri, 17 Sep 2004 11:04:29 -0400
HFTA is a terrain analysis program developed by Dean Straw, N6BV, of ARRL. It comes free with the ARRL Antenna Book and includes a program called MicroDem that is used to capture and process USGS ter
/archives//html/Towertalk/2004-09/msg00347.html (12,271 bytes)

11. RE: [TowerTalk] GPS receivers (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Fri, 17 Sep 2004 15:46:33 -0400
Oops. I knew 6dB figured in there somewhere, but I thought it was due to a dipole being 3dB over an isometric radiator in free space, then a dipole over ground being 3 dB over a dipole in free space
/archives//html/Towertalk/2004-09/msg00351.html (9,673 bytes)

12. RE: [TowerTalk] SteppIR, still in business? (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Sat, 9 Oct 2004 12:27:04 -0400
I just contacted Fluidmotion about shipment of my 4-el. They replied with tracking numbers the next day. I also got an e-mail from UPS with the tracking numbers. The beam was shipped 8 weeks and two
/archives//html/Towertalk/2004-10/msg00149.html (9,847 bytes)

13. RE: [TowerTalk] Tower height increments (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Sat, 16 Oct 2004 12:20:04 -0400
EZNEC gives similar results -- a 40-2CD at 69 feet has a radiation angle of 27 degrees, while the same antenna at 79 feet has a radiation angle of 24 degrees. Three degrees wouln't be worth the work
/archives//html/Towertalk/2004-10/msg00428.html (10,641 bytes)

14. RE: [TowerTalk] Tower height increments (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Sat, 16 Oct 2004 12:24:26 -0400
EZNEC shows the gain increasing about half a dB from 69 to 79 feet. However, it also shows the gain dropping back .5dB at 110 feet, where the angle is more desirable. I suspect these minor gain diffe
/archives//html/Towertalk/2004-10/msg00429.html (9,930 bytes)

15. RE: [TowerTalk] Conduit ends? (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Tue, 2 Nov 2004 11:41:07 -0500
My conduits terminate in metal utility boxes. One is mounted on a panel supported by 4x4s next to a tower. Coax runs from all antennas enter the box via Polyphaser bulkhead feed-through lightning sup
/archives//html/Towertalk/2004-11/msg00041.html (12,351 bytes)

16. RE: [TowerTalk] Attention TT digest subscribers (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Sat, 8 Jan 2005 12:50:53 -0500
_______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any quest
/archives//html/Towertalk/2005-01/msg00227.html (8,233 bytes)

17. RE: [TowerTalk] RE: Downloading terrain data for use with HFTA (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Fri, 14 Jan 2005 09:15:19 -0500
Bob, I agree that consumer GPS readings may not be accurate enough to compensate for terrain with lots of variation. Elevations on my steep hillside location can vary considerably in just a few feet,
/archives//html/Towertalk/2005-01/msg00476.html (15,312 bytes)

18. RE: [TowerTalk] Bandpass filters - ICE vs Dunestar (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Mon, 31 Jan 2005 18:24:40 -0500
Pete, If you haven't done so already, it would be a lot cheaper to make up a set of switchable bandpass stubs, ala the designs on K1TTT's website. A bit more work, of course. Stubs got rid of most of
/archives//html/Towertalk/2005-01/msg01292.html (9,324 bytes)

19. Re: [TowerTalk] Was: Getting antennas into the shack. Now: SO2Rantennaswitching (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Mon, 14 Mar 2005 21:58:55 -0500
Top Ten makes good SO2R switches, too. I've been happy with them. Different approach -- separate A/B relays for each antenna and separate 1-of-6 relays for each radio. This might provide better isola
/archives//html/Towertalk/2005-03/msg00306.html (11,603 bytes)

20. Re: [TowerTalk] Wet setting conduit? (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Sat, 2 Apr 2005 19:20:27 -0500
I agree with most of what Gene says here, but still maintain that in some installations, like my own, it's best to use suppressors at both the tower and shack ends of the main coax run. As in Gene's
/archives//html/Towertalk/2005-04/msg00070.html (21,551 bytes)


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