question on feeding a phased array

[Brian McGinness]

I have a question about feeding a phased array. I want to put
up a 2-el delta loop array, and feed it 90 degrees out of phase,
and maybe even 135 degrees at times.

ON4UN's book (in the phased vertical section) suggests that
a 73 degree delay line is the proper amount to achieve a 90 degree
delay at the feed points.

Does this carry true to a delta loop array? (I plan on using
90 degrees of RG-11 to match the loops to 50 ohms).

So should I use 90 or 73 degrees of delay line?

Next question: should the 50 ohm section (RG213) between the
50 ohm feedpoint and the switchbox be a particular length,
or is it just important that the two lines be equal?

Thanks for any help. I tried to get thru to ON4UN via email
but something chews up his address and eunet.be sends me a
nastygram saying user ID "john4un.eunet.be" does not exist,
even though I tried 3 times making sure I was using
john.devoldere at eunet.be, but something somewhere busts that
address up bad. Perhaps it is going through packetcluster, hi hi.

Please email any comments to wa3wjd at wirelessinc.com

73,
Brian


*****************************
* Brian McGinness WA3WJD    *
* Potomac Valley Radio Club *
* wa3wjd at wirelessinc.com    *
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