[TowerTalk] Circular Polarization antenna connection

AUGUSTO YIPMANTIN lito@rpp.com.pe
Wed, 29 Apr 1998 09:51:10 -0500

To any who knows the way to make calculations to make a connection cable between 2 cross driven element ( one vertical and the other horizontal in same boom ), like this aprox.

                                ||  ||   Vertical element with gamma match
                                ||  ||
                                ||  _     
                   ====|    ||          Horizontal element with gamma match

When I connect the coax cable terminal to the horizontal element and with a "T" connector and a cable extension the vertical element a rigth hand circular polarization will result.

The question is how to calculate the length of the coax extension to link each elements ?

I plan to use a four bay array mounted in a 30 mts. tower with a RG-11 power divisor.

Pse any comments and suggestions.

TKS de Augusto, OA4CVT

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