Which design are you referring to Tor?
----- Original Message -----
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.
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