At 06:15 PM 9/7/97 -0400, you wrote:
>
>Towertalk readers, if you have researched this revision, and know the
>motivation please share it with the reflector....it does not appear to have
>influenced element lengths then vs now so I guess it isn't a matching
>thang.....but, if it means I couple more watts into the driven element with
>the new version, and might be louder - heah, I wanna know!!! I am rebulding
>the antenna now, and it is a perfect time to do this....
>
As near as I can tell, the reason for the new beta is to allow adjustment
for the "174CA Option," a set dimensions for operation of the antenna on
17 Meters. According to my (new) 204BA manual, the "174BA" has the
following characteristics:
Gain .......................... 8.35 dBi
Front-to-back ................. 24.4 dBi
VSWR ............................ 1.06:1
boom length (active) ............... 21'
longest element ............... 18' 6.5"
turning radius ..................... 18'
I seriously doubt the gain or efficiency is any better with the new beta.
73,
... Joe Subich, W8IK ex-AD8I
<w8ik@ibm.net>
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