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Total 78 documents matching your query.

61. [TowerTalk] Adjustable Phase Shift networks (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Wed, 25 Jul 2001 16:04:16 -0600
Mel, one way to do what you want is to build a 90 degree hybrid coupler. Terminate two of the ports with a parallel resonant circuit and use the other two as in and out. By selecting the proper value
/archives//html/Towertalk/2001-07/msg00471.html (9,176 bytes)

62. [TowerTalk] Come-alongs and Load Straps (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Wed, 25 Jul 2001 16:38:08 -0600
Come-alongs have been discussed here before and the cheapest ones may be worth even less than what they cost. The best deal on a high quality unit that is more than adequate for most ham applications
/archives//html/Towertalk/2001-07/msg00473.html (8,427 bytes)

63. [TowerTalk] coax as capacitor (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Wed, 25 Jul 2001 16:38:26 -0600
Pete-- Yes, it can. Coax has been used by many for gamma match caps--including Cushcraft. I even published an article about it around 35 years ago. Only problem is that it is not a pure capacitance s
/archives//html/Towertalk/2001-07/msg00474.html (8,783 bytes)

64. [TowerTalk] Come-alongs and Load Straps--yet again (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Wed, 25 Jul 2001 21:07:37 -0600
COME-ALONGS All of the precautions stated by others are of course important issues. But I own about 50 come-alongs many of which claim to be made in the USA. The ones I mentioned that are available a
/archives//html/Towertalk/2001-07/msg00480.html (13,790 bytes)

65. [TowerTalk] Adjustable Phase Shift networks (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Thu, 26 Jul 2001 15:57:48 -0600
Mel-- Here is a little more info now that I am back from my errands. I have a few extra minutes so I could dig up some info for you. There are no cookbook directions to do the hybrid phase shifter. B
/archives//html/Towertalk/2001-07/msg00520.html (8,505 bytes)

66. [TowerTalk] Lexan (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Fri, 01 Jun 2001 07:57:13 -0600
Thanks for all of the helpful comments. I have found that others with direct experience in my specific application can be complementary to web searching. I discovered that some of the pieces have som
/archives//html/Towertalk/2001-06/msg00015.html (8,697 bytes)

67. [TowerTalk] Identifying EHS wire (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Fri, 04 May 2001 18:59:26 -0600
Mike-- Guy Strand in typical amateur sizes (3/16 to 1/2) are usually 1x7. Larger sizes can run 1x19 or 1x37. This refers to the number of wires in the strand and how they are layed (layered). Left ha
/archives//html/Towertalk/2001-05/msg00138.html (9,265 bytes)

68. [TowerTalk] Tilting up Rohn 25. (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Sat, 05 May 2001 13:57:16 -0600
There IS one technique that has been used successfully on the east coast (DC area, I believe) that has pulled up towers of this size (and larger) with antennas on top. It is an old technique that is
/archives//html/Towertalk/2001-05/msg00160.html (10,270 bytes)

69. [TowerTalk] Lexan (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Thu, 31 May 2001 10:34:13 -0600
My wife brought home some scrap sheets of Lexan from work for making antenna parts. (Love a woman who understands my NEEDS!) Hope to use this stuff for the insulated mountings for the matching networ
/archives//html/Towertalk/2001-05/msg00656.html (7,739 bytes)

70. [TowerTalk] Grips vs. clamps? (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Tue, 03 Apr 2001 11:39:52 -0600
Only word of caution is that Nicopress fittings are specified for aircraft cable. I once asked the company about using them on 1x7 EHS guy strand and they said they would have to do some testing. Thi
/archives//html/Towertalk/2001-04/msg00060.html (7,558 bytes)

71. [TowerTalk] Petrezewski (sp?) array .. (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Wed, 04 Apr 2001 03:53:20 -0600
Dave, when the design first came out I built a version for 20M to test it out. It was no monobander (nor even a decent tribander) but it did work pretty well, showing some reasonable front to back, a
/archives//html/Towertalk/2001-04/msg00081.html (8,372 bytes)

72. [TowerTalk] Cell towers and Ham Radio (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Fri, 06 Apr 2001 05:12:34 -0600
Dale, After reading the fine print on one cell contract I wouldn't let any of them get near my ham towers and especially not replace them. The contract basically said they became the primary interest
/archives//html/Towertalk/2001-04/msg00137.html (9,798 bytes)

73. [TowerTalk] Telrex TB30? BakeLite insulator (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Mon, 23 Apr 2001 10:09:37 -0600
Richard-- When I restored an old Telrex tribander and needed a new bakelite insulator I found the bakelite tubing available from AIN plastics and just ordered a piece long enough and drilled my own h
/archives//html/Towertalk/2001-04/msg00484.html (7,812 bytes)

74. [TowerTalk] Telrex Antenna (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Tue, 24 Apr 2001 17:20:39 -0600
Monty-- Both the TB5EM and its predecessor, the TC-99C, had 18 ft booms--and they were 2 inch dia with 2.5 inch dia element reinforcements. From the prints I have it is very difficult to tell what th
/archives//html/Towertalk/2001-04/msg00530.html (8,433 bytes)

75. [TowerTalk] Coax (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Sat, 28 Apr 2001 07:08:26 -0600
ONE of the direct burial problems has been touched upon, but not the other half of the issue. As has been mentioned MOST PVC and PVCII cables are not designed for direct burial. There can be microsco
/archives//html/Towertalk/2001-04/msg00597.html (10,725 bytes)

76. [TowerTalk] Coax (score: 1)
Author: shr@ricc.net (W0UN--Signal Hill Ranch)
Date: Sat, 28 Apr 2001 09:26:53 -0600
Brian, I couldn't agree more--that is why I said "if you MUST" bury the cable. My point is that even in dry climates the pipe fills up with water. If your water table is high or you have very marshy
/archives//html/Towertalk/2001-04/msg00598.html (11,359 bytes)

77. [TowerTalk] Rhombic vs. Yagi (score: 1)
Author: shr@ricc.net (Signal Hill Ranch)
Date: Wed, 03 Jan 2001 07:20:54 -0700
My four-stack of 8 element Yagis on 10M comes pretty close to that number with ground reflection gain. (Good enough for up to 15 d/B S/N on 10M EME.) When conditions are a bit disturbed, our (Colora
/archives//html/Towertalk/2001-01/msg00080.html (9,650 bytes)

78. [TowerTalk] Tic Ring problem (score: 1)
Author: shr@ricc.net (Signal Hill Ranch)
Date: Sun, 21 Jan 2001 08:23:44 -0700
Barry, it was my experience with the TIC rings from a number of years ago that the pot burned out due to RF pickup by the leads from the controller. The failures seemed to be related to the actual le
/archives//html/Towertalk/2001-01/msg00563.html (9,153 bytes)


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