Search String: Display: Description: Sort:

Results:

References: [ +from:ve2dc@rac.ca: 59 ]

Total 59 documents matching your query.

41. [TowerTalk] Re: BBC report on bird kills at towers (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Fri, 22 Aug 2003 14:51:33 -0400
Actually yes, particularly after a windy night... but 10,000??? _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations
/archives//html/Towertalk/2003-08/msg00741.html (6,939 bytes)

42. [TowerTalk] UHF (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Fri, 5 Sep 2003 11:19:39 -0400
I believe they are rated the same as BNC connectors... 500W... but I've used them with high power for 30 years without a failure... I also used a Waters wattmeter for years at high power... and it us
/archives//html/Towertalk/2003-09/msg00125.html (7,568 bytes)

43. [TowerTalk] B & W antenna (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Tue, 21 Oct 2003 13:23:27 -0400
out of the antenna due to impedance mismatch and radiator inefficiency. In other words, if the SWR was 1:1 and the antenna wire was a perfect radiator, the termination would dissipate 0 watts." Now
/archives//html/Towertalk/2003-10/msg00488.html (8,151 bytes)

44. [TowerTalk] Re: B & W antenna (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Tue, 21 Oct 2003 14:48:06 -0400
Right... the folded dipole is 4x the open dipole impedance... not 2x It's my memory that failed me ;-) _______________________________________________ See: http://www.mscomputer.com for "Self Support
/archives//html/Towertalk/2003-10/msg00493.html (6,792 bytes)

45. Re: [TowerTalk] hygain 205ca swr question (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Mon, 3 Nov 2003 11:49:19 -0500
I sure wish it was that easy! no... it won't work... not even a meaningful reading is possible that close to the ground. Pointing it in the air, reflector down, will tell you if you are in the ballpa
/archives//html/Towertalk/2003-11/msg00044.html (7,873 bytes)

46. [TowerTalk] some random thoughts on the SteppIR (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Tue, 4 Nov 2003 13:26:06 -0500
Hmm... I just put up 10/15/20 monobanders on my 150' guyed tower... just too high and inaccessible to take a chance on a SteppIR... but I have a "problem" with the tuning of the 20M antenna... and it
/archives//html/Towertalk/2003-11/msg00076.html (8,153 bytes)

47. Re: [TowerTalk] SteppIR 40/30 (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Tue, 4 Nov 2003 16:17:44 -0500
I'm not sure that's necessary... they could use a Hi-Q loading coil... this would work well since bandwith isn't the issue it is with a more conventional shortened 40... it wouldn't have to be much b
/archives//html/Towertalk/2003-11/msg00092.html (7,463 bytes)

48. [TowerTalk] Re: hygain 205ca swr question (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Fri, 14 Nov 2003 09:50:18 -0500
Just thought I'd let you know what the problem turned out to be Bill... I had started with a new 205BA which I'd had in storage... I converted to a 205CA... but I missed something important... The ce
/archives//html/Towertalk/2003-11/msg00399.html (13,221 bytes)

49. [TowerTalk] Stack (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Mon, 17 Nov 2003 10:15:07 -0500
I use 3 5 el yagis stacked in a tree... With 7' between the 10 and 15 and 10' between the 20 and 15 the performance is as follows. 20M... virtually unaffected... 15M... loss of about 1DB forward gain
/archives//html/Towertalk/2003-11/msg00461.html (7,533 bytes)

50. [TowerTalk] 160M antennas (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Mon, 1 Dec 2003 10:24:00 -0500
Not really. I used an inverted vee... apex at about 120', and had absolutely no trouble being heard in Europe... OTOH hearing was a problem that I did not resolve... no room for beverages. However fo
/archives//html/Towertalk/2003-12/msg00021.html (7,248 bytes)

51. Re: [TowerTalk] TA-33m (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Thu, 11 Dec 2003 15:18:13 -0500
Considering the hassle putting it up... and the problems possible with traps... and the fact I'm a little skeptical about it being up for 3 years... those antennas have been around since BC (Before C
/archives//html/Towertalk/2003-12/msg00305.html (8,163 bytes)

52. Re: [TowerTalk] Low Pass Filter Recommendation.... (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Tue, 23 Dec 2003 13:24:07 -0500
Andy But after you already have the bigger antenna... I have a high-power unit that I've been running QRO for years at home... Made by Microwave Filter Co. I'm not sure if it's still being manufactur
/archives//html/Towertalk/2003-12/msg00709.html (7,341 bytes)

53. Subject: [TowerTalk] Tower VS aeroplane suit dropped.... (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Thu, 29 Apr 2004 13:25:37 -0400
You may be interested to know, the pilot in question was an active ham, well known on the local 146.76 repeater. He was also a very experienced pilot... hard to imagine what went amiss... possibly de
/archives//html/Towertalk/2004-04/msg00631.html (7,698 bytes)

54. [TowerTalk] SteppIR a bargain? (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Thu, 22 Apr 2004 10:07:32 -0400
I don't use a steppIR here (yet) and I can never see it being my primary antenna... just don't trust it's complexity... but I don't see cost as being an issue. Any solution that gives good performanc
/archives//html/Towertalk/2004-05/msg00073.html (7,646 bytes)

55. [TowerTalk] Re: Rohn Torque Bar confusion (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Wed, 4 Aug 2004 09:29:35 -0400
Unless you are aiming microwave dishes, I think a pier pin is a better sollution to avoiding torque stress on the tower. _______________________________________________ See: http://www.mscomputer.com
/archives//html/Towertalk/2004-08/msg00086.html (7,308 bytes)

56. Re: [TowerTalk] Concrete anchors (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Wed, 22 Sep 2004 15:20:01 -0400
I'm a little bit skeptical of this issue... a typical tower 120' tower using 80% radius for guying at 3 points is going to have a guting radius of 240% for the bottom set of guys... at which point te
/archives//html/Towertalk/2004-09/msg00490.html (9,049 bytes)

57. Re: [TowerTalk] Chicago Tribune news: Ham radio tower has the OK (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Thu, 23 Sep 2004 15:30:58 -0400
This tired argument about "lowering property values" is what irritates me... especially on a treed lot. Nosey neighbors lower property values... who want's to live next door to one of those! Even if
/archives//html/Towertalk/2004-09/msg00534.html (7,903 bytes)

58. [TowerTalk] Re: Night Climb (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Fri, 15 Oct 2004 13:42:35 -0400
I also used to like to work on the tower at night... I found there was much less sense of height, so I found it less "stressful". tower work _______________________________________________ See: http:
/archives//html/Towertalk/2004-10/msg00396.html (6,909 bytes)

59. [TowerTalk] Ant switch (score: 1)
Author: "Mel Martin" <ve2dc@rac.ca>
Date: Mon, 18 Oct 2004 15:31:11 -0400
I use an Array Solutions switch. Works great... even on 2M with a bit of an impedance bump. Very solid construction with the exception of the tower mounting arrangement which I don't like.. _________
/archives//html/Towertalk/2004-10/msg00508.html (7,200 bytes)


This search system is powered by Namazu