View Single Post
  #9   Report Post  
Old May 27th 10, 11:22 PM posted to rec.radio.amateur.antenna
K1TTT K1TTT is offline
external usenet poster
 
First recorded activity by RadioBanter: Apr 2010
Posts: 484
Default Gamma fed or folded dipoles?

On May 27, 8:13*pm, JIMMIE wrote:
On May 27, 3:54*pm, jure wrote:



On 21 svi, 07:22, "VK2KC" wrote:


I am going to build an array of 4 stacked dipoles for operation on 2 metres.
I would like to know whether the gamma fed dipole has any advantage over the
folded dipole, apart from the folded dipole being a tad more difficult to
make.


I have heard that the gamma fed dipole has a skewed radiation pattern in
comparison to the folded one.


Any thoughts and advice?
Many thanks
John
VK2KC


*The folded dipole with 1:4 baloon is best *solution for maching
yagis .


Over the last few years a I have started preferring using the folded
dipole for the *driven element also. I dont understand your need for
4:1 BALUN though.

Jimmie


another robust one is the T match as used in old telrex yagis. it is
dc grounded and needs no capacitor, but it does use a 1/2 wave 'balun'
or phasing line between the halves of the T.