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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+80m\s+4Square\s+Dipole\s+VSWR\s+question\s*$/: 8 ]

Total 8 documents matching your query.

1. [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "D. Rodman, MD" <rodman@buffalo.edu>
Date: Tue, 16 Nov 2004 21:19:00 -0500 (EST)
I have a measured different resonance curves and corresponding VSWR for my 80m dipole array depending on which antennas I select. For example, the antennas are oriented NE, SE, SW, and NW. I have two
/archives//html/Towertalk/2004-11/msg00444.html (9,692 bytes)

2. Re: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Wed, 17 Nov 2004 05:31:24 -0500
using an Autek VSWR with the amplifier. I had antennas with measure the VSWR The power of the device has nothing at all to do with the SWR and mutual coupling. You must have other antennas or object
/archives//html/Towertalk/2004-11/msg00455.html (8,349 bytes)

3. RE: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Paul Playford" <w8aef@worldnet.att.net>
Date: Wed, 17 Nov 2004 19:52:56 -0000
The destructions that came with my Comtek phasing box(s) suggest that each element be cut about 5% long, the array erected and then observe the frequency that the minimum amount of power is dumped in
/archives//html/Towertalk/2004-11/msg00470.html (13,893 bytes)

4. RE: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 17 Nov 2004 15:57:57 -0500
Except the 0 degree port and the 180 degree port are actually connected in parallel (the 180 degree port is connected to the zero degree port through a phase reversal transformer/un-un). Thus, you h
/archives//html/Towertalk/2004-11/msg00474.html (9,029 bytes)

5. Re: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Wed, 17 Nov 2004 22:03:57 -0500
frequency (0 ohms Why not Paul? Anything that changes the common mode impedance of the system can change the resonant frequency of an antenna system. As a matter of fact if the feedline is not match
/archives//html/Towertalk/2004-11/msg00482.html (12,542 bytes)

6. Re: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Yo3ctk" <yo3ctk@alltrom.ro>
Date: Thu, 18 Nov 2004 12:15:57 +0200
Tom, I read from your comments that the Comtek box doesn't work and cannot work. Is my reading correct? sheesh, I just bought one, based on favorable comments read on the net.... 73 de Mike, YO3CTK -
/archives//html/Towertalk/2004-11/msg00483.html (16,811 bytes)

7. Re: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Thu, 18 Nov 2004 08:08:48 -0500
and cannot work. No, I never said that. It's obviously a good system, many people use it and have been using it for years. My only point is people look at these systems and assume they can take the
/archives//html/Towertalk/2004-11/msg00486.html (10,979 bytes)

8. Re: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Jim Lux" <jimlux@earthlink.net>
Date: Thu, 18 Nov 2004 06:47:24 -0800
Bringing up a question in the back of my mind... This is a pretty easy theoretical analysis. Does anyone have the component values in the Comtek box? (especially a rough idea of the parasitics and Q
/archives//html/Towertalk/2004-11/msg00493.html (9,483 bytes)


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