[TowerTalk] High VSWR

[dj7ww at t-online.de]

No, the wind aerea at the boom side with the element on is much larger then on the opposite side and turns the boom into the direction of the wind, always!

73
Peter




-----Original-Nachricht-----
Betreff: Re: [TowerTalk] High VSWR
Datum: 2019-09-03T14:21:19+0200
Von: "Steve Maki" <lists at oakcom.org>
An: "towertalk" <towertalk at contesting.com>

I can't wrap my head around this.

Yes, the element is "torque balanced" at it's own center, but at the 
boom center? I think not.

-Steve K8LX

On 09/02/19 12:41 PM, Jim Thomson wrote:

> ##  vane NOT  required if boom  mounted at  center.   Counterweight  IS  required....at  light end.
> ##  Longer  eles... and  number  of  eles  has  nothing to  do with with it.    Each  ele  is  symetrical...so  the  eles  are  already tq  balanced .    If  wind  hits the  eles  at  an angle......  and  viewed from  above...  left  side  of  eles  bends CW.....
> meanwhile right  side of  ele  bends  CCW...... they  cancel out......  or  vice versa.   The  eles  are  still  tq  balanced.
> 
> ##  I tried  this  experiment.   40  ft  boom.....  mounted   at  exact center  of  boom....to  mast.  Only  ONE  20m  ELE USED...THE REF.....  mounted   of course, at extreme  end of  boom.   no  counterweight used  for  this  test.   No  coax,  no  rotor.
> Does  not  rotate,  nor ....weathervane,  etc.   Stays  put,  regardless  of  windspeed,  or  where boom  was oriented by  hand.
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