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Old January 20th 04, 12:01 AM
Cecil Moore
 
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J Koli wrote:
Hw can I construct 110 deg phasing line for 3.8mhz? 450 ohm window type
ladder line preferred.

This is for 2 dipoles each 121' long and 70' apart. Height above avg
ground 60'. I would like to feed 1 dipole 110 deg out of phase of the
other..


You need more than just a 110 degree phasing line if you want the
currents in each dipole to be equal, which is usually the case.
W7EL has information on such in the ARRL Antenna Compendium Vol. 2,
"The Simplest Phased Array Feed System...That Works" Roy might also
have some associated information on his web page at www.eznec.com

If you have EZNEC and use two sources, you will see that those two
feedpoint impedances are widely different so it is no simple matter
to balance the two currents using one feed system.
--
73, Cecil http://www.qsl.net/w5dxp



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