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[TowerTalk] Hair Pin feed - ???

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Subject: [TowerTalk] Hair Pin feed - ???
From: w5robert@blkbox.com (Robert W5AJ)
Date: Sat, 4 Jul 1998 14:51:13 -0500

Have my new MFJ-259B in hand.
Have a 5 element six meter yagi with hair pin feed.
Have shortened both driven element and hair pin down from spec's and have:

1.2 at 50.400mhz & R=43
1.5 at 50.125mhz & R=35
1   at 48.550mhz & R=55

The R value takes a dip right where I want to operate.
How much of a hair pin movement vs. resonant point?   
I can calculate what 1/2" change in driven element length will move the
resonant point but have no data for hair pin.
comments?  info?

73  Robert W5AJ

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