Two verticals, 1/4 wave spacing, 90 degrees out of phase.
Tor
N4OGW
>
> From: "Bill" <w7vp@comcast.net>
> Date: 2006/04/05 Wed PM 09:54:16 EDT
> To: <rt_clay@bellsouth.net>, <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Phased Verticals
>
> Which design are you referring to Tor?
>
> Bill
> W7VP
> ----- Original Message -----
> From: <rt_clay@bellsouth.net>
> To: <towertalk@contesting.com>
> Sent: Wednesday, April 05, 2006 11:30 AM
> Subject: Re: [TowerTalk] Phased Verticals
>
>
> >> Another source for phased vertical information is in a
> >> Telex-HyGain Engineering report entitled "Phased Multi-Band
> >> Verticals for Additional Gain and Low Angle Radiation." The
> >> report is undated but contains designs for 2 and 3 element
> >> phasing systems showing the patterns and switching
> >> configurations. In the report the 3 antenna system is shown
> >> with the antennas placed at the corners of an equilateral
> >> triangle with each side of the triangle being 1/4 wavelength.
> >> In this configuration the report states that for the three
> >> antenna configuration a 60 degree pattern can be switched in
> >> six selectable directions. Note that the cardioid pattern
> >> shown in the report for the two antenna system is not totally
> >> correct (it shows a point in the gain direction) and it does
> >> not show patterns for the three element array.
> >
> > Also note that the phasing for the cardioid array shown in that
> > report is incorrect. You can't just add a "delay" line of 1/4 wavelength
> > to get 90 degree phasing.
> >
> > Tor
> > N4OGW
> >
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