----------------------------------------
> how much variance in gain there is when changing
> the factory settings to user determined vswr settings.
>
> k7puc
None. As long as you just change just the driven element length.
The gain is quite broad (very little change clear across the 20 meter band.).
The f/b is much sharper with frequency.
I have the elements in a 4NEC2 model if you want to look at the patterns and
charts. I'd be happy to send them to you. The program is free to download.
I've made similar offers many times to others. No one has ever taken me up on
my offer, though. But antenna modeling is a fascinating topic that will show
you all kinds of things about your antenna (such as the effect of changing
height, what happens if you mount another antenna nearby, etc.)
Rick K2XT
_________________________________________________________________
Windows Live™: Keep your life in sync.
http://windowslive.com/explore?ocid=TXT_TAGLM_WL_BR_life_in_synch_062009
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|