View Single Post
  #34   Report Post  
Old January 20th 08, 05:13 AM posted to rec.radio.amateur.antenna
Richard Clark Richard Clark is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 2,951
Default Linear Loaded Antennas ??

On Sun, 20 Jan 2008 04:22:40 GMT, "Lee"
wrote:

I don't think this is what you mean, but what you describe is vague.


Probably.
Imagine a half wave dipole with each leg folded back on itself
effectively becoming half its original physical length but still
the original electrical length, each leg is like a long thin letter
`U` ..like a folded dipole that has been cut open circuit opposite
the feed point...I shouldn`t have mentioned a vertical because
it mis-lead you, it was meant just to describe the configuration
of the dipole legs.


Hi Len,

This is more tenable. A satisfactory dipole, no horrendous loss due
to counter winding feed. If you can hoist a beam, about 19 feet wide,
with two wires connected at the ends and returning below it about 4
inches coming back within 4 inches of the beam above; then you stand a
chance, provided you can match to about a 7 Ohm load.

I presume your description follows something like (in fixed font):

_____________________________0____________________ __________
| |
———————————————————————————— —————————————————————————————


73's
Richard Clark, KB7QHC