Search String: Display: Description: Sort:

Results:

References: [ +from:mspencer12345@yahoo.ca: 31 ]

Total 31 documents matching your query.

21. Re: [TowerTalk] Utility Pole Weight (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Sat, 16 May 2009 16:01:00 -0700 (PDT)
http://www.blpole.com/products_services/western_red_cedar_poles_dimensions.html#ship __________________________________________________________________ The new Internet ExplorerŽ 8 - Faster, safer, e
/archives//html/Towertalk/2009-05/msg00327.html (10,455 bytes)

22. Re: [TowerTalk] Utility Pole Weight (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Sat, 16 May 2009 16:11:37 -0700 (PDT)
Sorry for the truncated message. These weights would be for cedar poles. __________________________________________________________________ Make your browsing faster, safer, and easier with the new I
/archives//html/Towertalk/2009-05/msg00328.html (11,230 bytes)

23. Re: [TowerTalk] (Repost) Engineering advice on above ground foundation (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Fri, 5 Jun 2009 14:04:22 -0700 (PDT)
My usual I am not an engineer and don't rely on this info discalimer applies, but I have seen some comericial towers intalled on what appear to be large free standing concrete structures that don't a
/archives//html/Towertalk/2009-06/msg00135.html (11,263 bytes)

24. Re: [TowerTalk] Coax Loss -- RG-Numbers Don't Tell us Much (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Thu, 4 Feb 2010 20:19:57 -0800 (PST)
For what it is worth a number of years ago I found that the measured loss of various forms of new Belden cable at 440 Mhz was noticeably less (maybe 20 % or so if memory serves ?) than the published
/archives//html/Towertalk/2010-02/msg00135.html (10,695 bytes)

25. Re: [TowerTalk] Shack ground (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Fri, 18 Jun 2010 14:46:04 -0700 (PDT)
Don't burn down the building and don't kill / injure the occupants sound like a reasonable design criteria to me for the grounding of my amateur radio instalation.  The protection of my amateur radi
/archives//html/Towertalk/2010-06/msg00207.html (9,706 bytes)

26. Re: [TowerTalk] Shack ground (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Fri, 18 Jun 2010 15:30:26 -0700 (PDT)
I concur, personally I'm satisfied with a continous piece where possible (ie. one piece of wire is run thru the various lugs as opposed to being spliced) of number 3 copper wire run outside the house
/archives//html/Towertalk/2010-06/msg00213.html (10,997 bytes)

27. Re: [TowerTalk] Coax loss (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Mon, 24 Nov 2014 10:46:15 -0800
Yes, I have measured actual coax loss using both dummy loads and antennas at the end of the cables. IIRC in almost all (maybe all ?) cases (baring obvious issues with connectors and adapters) the mea
/archives//html/Towertalk/2014-11/msg00474.html (18,238 bytes)

28. [TowerTalk] Rotor loop coax choices ? (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Thu, 11 Jun 2015 13:16:18 -0700
Hi, I've typically used RG 214 for rotor loops with good success. I've more or less run out of RG 214 and am wondering about the pros and cons of Belden 9913F7 (the newer style of 9913) and flexible
/archives//html/Towertalk/2015-06/msg00152.html (8,291 bytes)

29. Re: [TowerTalk] Rotor loop coax choices ? (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Thu, 11 Jun 2015 16:59:26 -0700
Thanks all for the comments and suggestions. Re the length I typically run the "rotor loop" all the way to the antenna feed point (rather than just using it to by pass the rotor.) The suggestion to u
/archives//html/Towertalk/2015-06/msg00171.html (8,371 bytes)

30. Re: [TowerTalk] Rotor loop coax choices ? (score: 1)
Author: Mark Spencer <mspencer12345@yahoo.ca>
Date: Thu, 11 Jun 2015 21:07:43 -0700
Gerald: In most cases double or single shielding is probably a non issue for me at HF so long as I use "high quality" single shielded cable. That being said, I have found that on occasion some single
/archives//html/Towertalk/2015-06/msg00177.html (11,059 bytes)

31. Re: [TowerTalk] [WARNING: A/V UNSCANNABLE]Teflon 50-ohm coax (score: 1)
Author: <mspencer12345@yahoo.ca>
Date: Fri, 11 Sep 2015 18:48:45 +0000
Re RG400. I use that for most of my jumpers and patch cords these days. A local electronic supply store stocks a generic version by the foot, and they also stock the correctly sized ferrules that all
/archives//html/Towertalk/2015-09/msg00174.html (7,883 bytes)


This search system is powered by Namazu