At 11:41 AM 9/3/98 -0700, W2VJN wrote:
>Hi Chad,
>
>Half element lengths for CW, Mid, Phone:
>
>Ref, 21' 6.5", 21' 3.5 ", 21' 0.5 "
>
>DE, 21' 0.5", 20' 9.5", 20'6.5"
>
>The settings are for 7025, 7140, and 7220.
Thanks George.
The XM-240 book shows:
CW/Mid/PH
Ref: 262.5" (21' 10.5"), 258.5" (21' 6.5"), 255.5" (21' 3.5")
DE: 252.5" (21' 0.5"), 249.5" (20' 9.5"), 246.5" (20' 6.5")
So the driven is identical, but the reflector got 3-4" longer.
I copied two Cushcraft guys on my original post, hopefully they
can also respond to resonant frequencies and 2:1 SWR points
for their definition of CW/Mid/PH.
Thanks again George.
---
Chad Kurszewski, WE9V e-mail: WE9V@qth.com
The Official "Sultans of Shwing" Web Site: http://www.QTH.com/sos
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