What would be a starting point for stacking 2 6M7JHV 6 meter yagi's? Thanks...Rich _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wirele
Half wavelength is standard for optimum coupling, or about 10 feet for 6 meters ((6*39.4)/(12/2)). Keith What would be a starting point for stacking 2 6M7JHV 6 meter yagi's? Thanks...Rich ___________
At 08:38 AM 7/12/2004, Keith Dutson wrote: Half wavelength is standard for optimum coupling, or about 10 feet for 6 meters ((6*39.4)/(12/2)). Isn't maximum gain somewhere in the 5/8 - 3/4 wavelength
May be, but I have always heard 1/2. Anybody out there with experience? How does spacing affect take-off angle? Keith Isn't maximum gain somewhere in the 5/8 - 3/4 wavelength range? 73, Pete N4ZR The
Max stacking gain for dipoles is 5/8 wavelength. Max stacking gain for yagis varies with boom length. For the 6m7JHV with a 30ft 8in boom length, stacking distance will be in the 25 to 26ft range. As
To see how spacing affects take-off angle, install and run the YT (Yagi/Terrain) software that comes on the CD-ROM with your ARRL Antenna Book. Basically, stacking couples two or more yagis such that
At 11:08 AM 7/12/2004 -0400, TexasRF@aol.com wrote: Max stacking gain for dipoles is 5/8 wavelength. Max stacking gain for yagis varies with boom length. For the 6m7JHV with a 30ft 8in boom length, s
At 09:30 AM 7/12/2004 -0600, Bill VanAlstyne wrote: To see how spacing affects take-off angle, install and run the YT (Yagi/Terrain) software that comes on the CD-ROM with your ARRL Antenna Book. Bas
I use 30 feet for 2 6el yagis on 24 foot booms... Works great! Chuck W5PR Half wavelength is standard for optimum coupling, or about 10 feet for 6 meters ((6*39.4)/(12/2)). What would be a starting p
Spacing does not really affect takeoff angle. Takeoff angle is totally dependent upon height above ground. If you have optimum spacing, the takeoff angle will be the same as an antenna mounted 1/2 wa
Check out this article on stacking 6M beams: http://www.uksmg.org/stack.htm I would also ask M2 for the spec on stacking this antenna. Their website says 25' max, they also talk about a 4 bay stack o
On Mon, 12 Jul 2004 15:02:34 -0500 "Chuck Dietz" <w5pr@swbell.net> writes: You can download the free program YTAD, which helps to answer questions such as these at: http://www.arrl.org/qexfiles/ The
You can download the free program YTAD, which helps to answer questions such as these at: http://www.arrl.org/qexfiles/ The latest version of this program, apparently much improved, is called HFTA. I
It's not the average of the two antennas.. Using HFTA I just ran a pair of 3element antennas for 20m over flat ground The main lobe for 30ft is about 30 deg for 60ft it's about 16 deg for the pair it
In the Help file for YT v2.0 (probably not the very latest version, but anyway...), N6BV states, "YT's default values are a ground conductivity of 5 mS/m and a dielectric constant of 13, typical of a
K5GW is right on the money. A quick glance at the M2 webpage places the stacking for the 6M7JHV at: Stacking Distance, Max: 27' Wide, 25' High As someone else also pointed out, call M2 and speak with
IMO, there is a wealth of good thinking behind this email. You have given me some great ideas. Thanks, Bill. Jim K9YC _______________________________________________ See: http://www.mscomputer.com fo
Jim has articulated a very interesting approach to the question of covering the range of elevation angles for 6M. I like the idea of retaining the enlarged aperture of two yagis for the higher take-o
Its pretty simple to do in EZNEC, Bill. All you need to do is to model two yagis at the appropriate heights above ground, and then drive each one with a 1 amp current source. EZNEC lets you specify t
W5WVO wrote:>But how to model the effect of various phase shifts on take-off angle? Does anyone have a handle on that? I don't know of any software that is set up to do the math involved in this scen