Search String: Display: Description: Sort:

Results:

References: [ +from:jim.thom@telus.net: 1317 ]

Total 1317 documents matching your query.

181. Re: [TowerTalk] Motorized UST tower... very smooth and dead (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 29 Sep 2010 17:25:05 -0700
load ratings Which one do you want ? and 50 sq ft is els, etc. are 2" or less in OD. Both those are based on PROJECTED AREA OF A CYLINDER ! They rate the flat eq at 38.5 sq ft. [ effective projected
/archives//html/Towertalk/2010-09/msg00747.html (9,064 bytes)

182. [TowerTalk] HDX-689 specs (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 29 Sep 2010 20:51:39 -0700
HI Alan, I have a UST 589 myself.. The HDX-689 is a custom tower that (with reference to the 589) has one section larger than the 589 lower/lowest section and one section less top section.. Said anot
/archives//html/Towertalk/2010-09/msg00752.html (9,403 bytes)

183. [TowerTalk] F-12 Drop in cradle mount (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Fri, 1 Oct 2010 02:55:32 -0700
I see that F-12 uses a..... 'drop- in cradle mount' on some of their bigger ants. I can sorta envision what this looks like. Can anybody describe it ? I'd love to see a close up pix of one. I know wh
/archives//html/Towertalk/2010-10/msg00000.html (6,557 bytes)

184. [TowerTalk] Min spacing to 80m yagi ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Oct 2010 05:34:21 -0700
How close can you get a 20m yagi, below a 2-el 80m yagi ? I have an option to use a F-12 Sigma 280-S shortened 80m yagi at the top of the mast, with the F-12 340N at the bottom of the mast. Spacing b
/archives//html/Towertalk/2010-10/msg00037.html (8,123 bytes)

185. Re: [TowerTalk] Min spacing to 80m yagi ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Oct 2010 06:18:20 -0700
Jim, wouldn't you think that the 20m yagi would suffer pattern degradation while the 80m yagi would be ok? 73, Gerald K5GW 20m.. at least it gives me 20m capability. Another possible config would be
/archives//html/Towertalk/2010-10/msg00039.html (9,510 bytes)

186. [TowerTalk] Min spacing to 80m yagi ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 9 Oct 2010 20:01:07 -0700
Placing antennas at right angles often worsens interaction problems. There should be little interaction between 40m and 80m if they're pointing in the same direction, but who knows what interaction t
/archives//html/Towertalk/2010-10/msg00076.html (12,992 bytes)

187. [TowerTalk] balun beads for 9913 (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sun, 10 Oct 2010 05:26:29 -0700
For 50 MHz, you want two or three turns through a 1-inch long core and two turns through a 2-inch core,. and for maximum noise suppression, you will want at least three of these multi-turn chokes in
/archives//html/Towertalk/2010-10/msg00078.html (7,851 bytes)

188. [TowerTalk] Sigma 180-S / 280-S (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 11 Oct 2010 07:11:14 -0700
If anybody owns either a F-12 Sigma 180-S or 280-S.[ both 80m ants].. or knows somebody who does own either one, perhaps you could stick a few watts into it on 20m, and see what kind of swr you have
/archives//html/Towertalk/2010-10/msg00087.html (7,872 bytes)

189. [TowerTalk] Sigma 280-S (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 13 Oct 2010 05:43:17 -0700
I'm considering the 180S or 280S also, likely the shorter (not Magnum) versions. The Tornado variable pair of inductors at the feed point (squeeze/expand the coils) appears to be a good idea at least
/archives//html/Towertalk/2010-10/msg00096.html (9,888 bytes)

190. [TowerTalk] Sigma 280-S (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Oct 2010 02:55:37 -0700
I'm considering the 180S or 280S also, likely the shorter (not Magnum) versions. The Tornado variable pair of inductors at the feed point (squeeze/expand the coils) appears to be a good idea at least
/archives//html/Towertalk/2010-10/msg00117.html (11,574 bytes)

191. [TowerTalk] Protecting Buried Guy Anchors (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Oct 2010 03:37:02 -0700
If you have insulated guy wires, no galvanic current can flow. If not: insulate them.... 1 amp for 1 year consumes 20 lbs of anchor - so even a few milliamps over time from a small earth potential di
/archives//html/Towertalk/2010-10/msg00118.html (9,731 bytes)

192. [TowerTalk] Crimped PL-259's (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Oct 2010 12:32:00 -0700
Wow. So I should return all these commercial two way radios I deal with that have SO-239 connectors on them for use with PL-259's to the manufacturers as being defective? Icom, Kenwood, etc use them
/archives//html/Towertalk/2010-10/msg00166.html (9,192 bytes)

193. [TowerTalk] Crimped PL-259's (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Oct 2010 13:23:07 -0700
The inference here is that UHF connectors are somehow outmoded. was, they would all be useable, and they are not. The quality of UHF connector's varies from superb to pure junk. A lot of them are not
/archives//html/Towertalk/2010-10/msg00170.html (11,768 bytes)

194. [TowerTalk] Crimped PL-259's (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Oct 2010 20:02:38 -0700
Jim (VE), Where can I find this RFS corrugated cable (in red below)? The prices I have found are triple what you mentioned. I need to find some before the cold weather sets in. Les W2LK Beware, the 7
/archives//html/Towertalk/2010-10/msg00190.html (9,836 bytes)

195. [TowerTalk] External Receive Antenna Switch (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 21 Oct 2010 06:51:18 -0700
I would like to add an external Receive Antenna to an older radio that does not have a separate Receive Antenna input. The crude way would be another T/R relay but that has inherent problems. Anyone
/archives//html/Towertalk/2010-10/msg00250.html (8,122 bytes)

196. [TowerTalk] Resonant boom (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 23 Oct 2010 21:10:35 -0700
Anyone by chance have an easier to accomplish idea other than one I remember being suggested to someone else with a similar problem - fishing a wire through a hole near the center of the boom and let
/archives//html/Towertalk/2010-10/msg00290.html (9,678 bytes)

197. [TowerTalk] Resonant boom (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sun, 24 Oct 2010 19:22:10 -0700
That interaction is incredible since the beams are 186' apart. I don't recall my 60' boom yagis causing a 40m problem at my previous QTH with 20' spacing and I'm not sure yet if it's a problem at my
/archives//html/Towertalk/2010-10/msg00308.html (10,626 bytes)

198. [TowerTalk] 5 x conductor rotor cable ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 25 Oct 2010 07:16:14 -0700
Who makes 5 x conductor rotor cable ? I need 175' for the small PP. 3 x BIG wires and 2 x small ones. These small PP's have a com/CW/CCW for the dc motor which sucks 7-8 A . And 2 x small wires for t
/archives//html/Towertalk/2010-10/msg00311.html (7,513 bytes)

199. [TowerTalk] 5 x conductor rotor cable ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 25 Oct 2010 21:12:50 -0700
This is nothing more than an Ohm's law problem combined with the cost of the cable. When I needed a 350 run from my shack to my Yaesu rotor, I used two runs of 3-conductor power cable from the shack
/archives//html/Towertalk/2010-10/msg00337.html (12,364 bytes)

200. [TowerTalk] 14' Extra Worth It for 80m Dipole? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sun, 7 Nov 2010 19:43:17 -0800
I have multiple antennas on a Hygain 70' Crank up Tower and a 10' Mast.? The 80m Rotary Dipole sits on top at 76'.? Have this yearning to raise the the 80m r. dipole so that it sits at 90' with the t
/archives//html/Towertalk/2010-11/msg00082.html (9,410 bytes)

Current List: 181 - 200
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu