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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Towertalk\]\s+Interaction\s+of\s+Verticals\s*$/: 8 ]

Total 8 documents matching your query.

1. [Towertalk] Interaction of Verticals (score: 1)
Author: mwdink@eskimo.com (mwdink@eskimo.com)
Date: Tue, 06 Aug 2002 11:33:26 -0700
Hello All I am looking at putting up two verticals as spare antennas on the 40m and 80m. These are meant to be something for use in SO2R, a multiplier radio, or just another choice in a growing anten
/archives//html/Towertalk/2002-08/msg00140.html (8,225 bytes)

2. [Towertalk] Interaction of Verticals (score: 1)
Author: RCARIELLO@si.rr.com (RCARIELLO)
Date: Tue, 6 Aug 2002 19:06:34 -0000
Dink, Why bother putting up two antennas? Put up the full size 1/4 wave vertical for 80 meters. Then use it as a base feed 1/2 wave vertical for 40 meters. Rich AA2MF http://www.mscomputer.com additi
/archives//html/Towertalk/2002-08/msg00146.html (9,425 bytes)

3. SV: [Towertalk] Interaction of Verticals (score: 1)
Author: ozling@mail.dk (Henrik Weiss)
Date: Tue, 6 Aug 2002 22:59:31 +0200
Another question related to the topic which is of actuality to me right now is HOW MUCH would one need to detune a tower from for instance a Inv. L for 160 M. that is supported by the same. If the to
/archives//html/Towertalk/2002-08/msg00149.html (10,575 bytes)

4. [Towertalk] Interaction of Verticals (score: 1)
Author: corneliuspaul@gmx.net (corneliuspaul@gmx.net)
Date: Wed, 07 Aug 2002 00:02:20 +0200
Hi Dink, you can mount them spaced 1foot apart, even feed them at a combined feed point, so you need only one feedline no problem at all I do it all the time with wire verticals on dxpeditions. 73 Co
/archives//html/Towertalk/2002-08/msg00151.html (9,435 bytes)

5. [Towertalk] Interaction of Verticals (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Tue, 6 Aug 2002 20:12:46 -0600
When I was operation /9 back in 1970, I used a 48 ft push up mast with a 10 ft TV mast extension as a 1/2 Wave vertical on 40M fed with an L network against a ground rod. It was a very effective DX a
/archives//html/Towertalk/2002-08/msg00171.html (8,534 bytes)

6. SV: [Towertalk] Interaction of Verticals (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Tue, 6 Aug 2002 20:17:20 -0600
The problem is that ANY length more than 1/4 WL grounded WILL act as a parasitic reflector. A near resonant reflector at 0.15 WL can provide 4-5 dB gain (at least in a Yagi) but a longer (detuned) re
/archives//html/Towertalk/2002-08/msg00173.html (12,787 bytes)

7. [Towertalk] Interaction of Verticals (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Tue, 6 Aug 2002 19:53:41 -0600
Interaction between the verticals is not the only problem. A grounded tower with Yagi's on top WILL act as a non-resonant reflector for 40 and 80M verticals. I've seen this problem with 50 and 70 ft
/archives//html/Towertalk/2002-08/msg00174.html (9,904 bytes)

8. [Towertalk] Interaction of Verticals (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Wed, 7 Aug 2002 00:20:22 -0400
The question defies simple answers. It's model fodder if ever there was any. Ask anyone who has tried to design a setup like your question and then make it work. The tower is always a big unknown. An
/archives//html/Towertalk/2002-08/msg00176.html (13,078 bytes)


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