[TowerTalk] Phased Verticals

[rt_clay at bellsouth.net]

Two verticals, 1/4 wave spacing, 90 degrees out of phase. 

Tor
N4OGW

> 
> From: "Bill" <w7vp at comcast.net>
> Date: 2006/04/05 Wed PM 09:54:16 EDT
> To: <rt_clay at bellsouth.net>,  <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Phased Verticals
> 
> Which design are you referring to Tor?
> 
> Bill
> W7VP
> ----- Original Message ----- 
> From: <rt_clay at bellsouth.net>
> To: <towertalk at 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
> >