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Total 230 documents matching your query.

101. Re: [TowerTalk] 4 SQ WX0B box (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 09:03:34 +0100
Well, not quite I think. I think it&acute;s one LC network for CW part of band and one for SSB part. W7EL network doesn&acute;t have enough bandwith to cover 3500-3900 kHz, you need to use two LC net
/archives//html/Towertalk/2004-11/msg00558.html (10,110 bytes)

102. Re: [TowerTalk] 4 SQ WX0B box (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 09:05:29 +0100
Interesting Tom but it doesn&acute;t adress what I wrote under this subject. Guess somehow things got mixed up. 73 Jim SM2EKM -- Tom Rauch wrote: power is carried in the feedline. In an ideal system,
/archives//html/Towertalk/2004-11/msg00559.html (9,300 bytes)

103. Re: [TowerTalk] 80m 4Square Comtek box (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 09:24:40 +0100
I did my 80m 4 square more then 20 years ago. At that time there was no Comtek box to buy, it wasn&acute;t invented yet. All there was was Mr Comtek (then KF4HK I think) and we used to work each othe
/archives//html/Towertalk/2004-11/msg00560.html (10,035 bytes)

104. Re: [TowerTalk] 80m 4Square Comtek box (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 10:32:21 +0100
Jim I agree however if you see it from a Swedes perspective it will come out totaly different. Those 350 dollars probably looks more like 900 dollars to me in Sweden. Hope you understand so I don&acu
/archives//html/Towertalk/2004-11/msg00561.html (12,153 bytes)

105. Re: [TowerTalk] K6STI Receiving loop question (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 10:33:58 +0100
No not unless your feedline has very high losses. 73 Jim SM2EKM -- Pete Smith wrote: OK -- well, the program says that at the RX end this particular length of cable and other conditions presents a 23
/archives//html/Towertalk/2004-11/msg00562.html (10,471 bytes)

106. Re: [TowerTalk] 4 SQ WX0B box (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 15:00:25 +0100
Aha now I understand. Thanks for the info John. Hope I can find some more info on it before the book comes out. 73 Jim SM2EKM -- W0UN -- John Brosnahan wrote: Still no explanation what the "new Lahlu
/archives//html/Towertalk/2004-11/msg00566.html (8,924 bytes)

107. Re: [TowerTalk] 4 SQ arrays (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 16:06:59 +0100
Improved in what way? Did a quick check in NEC. When going to about 1.5 wl spaceing, that will give about 2 wl on the diagonal, two strong aditional back loobes comes up in low elevation. Hardly does
/archives//html/Towertalk/2004-11/msg00570.html (8,955 bytes)

108. Re: [TowerTalk] 4 SQ arrays (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 19 Nov 2004 16:51:45 +0100
Now I see my error. I checked at .35 wl spacing and that will give about .5 wl on the diagonal. Don&acute;t know why I wrote 1.5 wl and 2 wl below, my fingers are to fast for my brain. Anyway, at .35
/archives//html/Towertalk/2004-11/msg00572.html (11,034 bytes)

109. Re: [TowerTalk] elevated short vertical dipole orquarterwave monopole? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 05 Dec 2004 08:45:20 +0100
Strange. I&acute;ve used gamma matched yagis for 35 years or so and also used (at times) very high power, never had a failure or any problem with it. Sure a gamma match isn&acute;t a perfectly balanc
/archives//html/Towertalk/2004-12/msg00076.html (11,584 bytes)

110. [TowerTalk] Re: gamma vs T match (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 07 Dec 2004 09:01:55 +0100
Comments below. Tom Rauch wrote: Strange. I&acute;ve used gamma matched yagis for 35 years or so and also used (at times) very high power, never had a failure or any problem with it. Sure a gamma mat
/archives//html/Towertalk/2004-12/msg00155.html (14,086 bytes)

111. Re: [TowerTalk] T-match vs Gamma-Match Trade-off (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 07 Dec 2004 09:21:04 +0100
Agree, as I wrote in a previous post T-match sure is a lot better from a engineering standpoint. On a performance basis I dont think anyone can see any difference at least not when it&acute;s up to s
/archives//html/Towertalk/2004-12/msg00156.html (15,018 bytes)

112. Re: [TowerTalk] geo888@cs.com (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 10 Jan 2005 17:18:34 +0100
Isn&acute;t it possible just to remove geo888 from the subscribers list? Doesn&acute;t seem high tech at all to me! 73 SM2EKM -- Keith Dutson wrote: Not just you. Every poster gets this. One way to e
/archives//html/Towertalk/2005-01/msg00289.html (9,137 bytes)

113. Re: [TowerTalk] unguyed heights for Rohn 65 etc.? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 14 Jan 2005 06:54:41 +0100
Dont you guys ever do calculations on things like this? A little bit of mathematics will figure all this out, also I&acute;m pritty sure there would be computer software that can do stress calculatio
/archives//html/Towertalk/2005-01/msg00468.html (10,699 bytes)

114. Re: [TowerTalk] unguyed 65, response (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 14 Jan 2005 18:48:07 +0100
Cool it Rich! I did not mean you or anybody specific. This was in general terms spoken. Absolutley no need to get this winded up. 73 SM2EKM -- RICHARD BOYD wrote: Well, do I sense some negativism her
/archives//html/Towertalk/2005-01/msg00490.html (10,389 bytes)

115. Re: [TowerTalk] Wires from a Freestanding Tower (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 15 Jan 2005 08:31:29 +0100
Wow what a total dissaster. I really feel sorry for N9RV! 73 SM2EKM -- GALE STEWARD wrote: Well, I'm not so sure. If a bunch of wire antennas become heavily laden with ice (a situation many of our ra
/archives//html/Towertalk/2005-01/msg00550.html (8,515 bytes)

116. Re: [TowerTalk] Vacuum Variable Capacitor Sources (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 18 Jan 2005 17:27:01 +0100
Can you specify? 73 Jim -- At 08:25 PM 1/17/2005, Howard Klein wrote: several available often at bargain proces. I would advise caution with imported ones. Howard..K2HK ______________________________
/archives//html/Towertalk/2005-01/msg00764.html (8,116 bytes)

117. Re: [TowerTalk] Proper bolt sizes for Rohn 25G (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 19 Jan 2005 15:16:40 +0100
Does ROHN use special "ROHN bolts" for their towers? 73 SM2EKM -- Keith Dutson wrote: I would purchase new Rohn bolts. Texas Towers may have them in stock. Keith NM5G --Original Message-- From: tower
/archives//html/Towertalk/2005-01/msg00798.html (9,813 bytes)

118. Re: [TowerTalk] parasitic 4-square for 40 meters (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 21 Feb 2005 07:42:00 +0100
What is a "parasitic 4 square"? As far as I know there is no "parasitic" with a 4 square since it&acute;s a driven array. Did I miss something new?? 73 SM2EKM -- _____________________________________
/archives//html/Towertalk/2005-02/msg00470.html (8,357 bytes)

119. Re: [TowerTalk] Titanix V160e Failure (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 01 Mar 2005 16:22:43 +0100
This is probably the culprit. I have had elements fall off my Yagis before I did learn how to do tapering right, when tapering is right no ropes will be needed inside elements. In the Titanex case yo
/archives//html/Towertalk/2005-03/msg00009.html (9,061 bytes)

120. Re: [TowerTalk] Formulas for Free Space Path Loss (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 02 Mar 2005 09:02:40 +0100
Ahmed, Try this link, should give you some answers. http://dlink.trustit.se/linkbudget/ 73 Jim SM2EKM -- _______________________________________________ See: http://www.mscomputer.com for "Self Suppo
/archives//html/Towertalk/2005-03/msg00043.html (7,677 bytes)


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