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Old 7-Nov-2019, 8:01 PM   #25
Tower Guy
Senior Member
 
Join Date: Dec 2009
Location: Delmar, NY
Posts: 1,188
I did this 4 element design for channel 6 using EZ-NEC:

3/8" diameter elements.

Reflector length 71.6"
Driven length 72.4"
Director #1 61.2"
Director #2 57"

spacing

Ref-Driven 22.8"
Driven-D1 3.1"
D1-D2 20.1"

The feed is direct using 75 ohm coax; no balun.

If you want to play download this: https://www.eznec.com/demoinfo.htm
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