RadioBanter - View Single Post

ml · December 30th 08, 03:17 AM posted to rec.radio.amateur.antenna

In article
,
wrote:

ML,
Any/every thing around an antenna is going to affect it's radiation
pattern to some extent, including feed lines. How much affect those
things have is the practical aspect of that. The 'classical'
radiation patterns, typically shown, are just that 'classical', best
case possibilities. The more 'mundane'(?) patterns are usually never
going to be the same, and in most cases, not really all that
important, sort of. It would be nice to be able to predict things by
using the 'classical' patterns, but just not a very practical thing to
count on. Depends a lot on which bands you're talking about too.
'Directional' is typically more important for the higher bands than
the lower ones, propagation and all that 'stuff'. Which isn't to say
that you shouldn't worry about it, just only to a 'practical' extent.
The easiest/hardest solution is to just move the thing till it's
'right' for you.
Yeah, I know, sort of a totally useless post, right? Oh well...
- 'Doc

nah i get the point, that was really what i was wondering, in
a way what the practically of it all is, meaning if i have to for
certain reason hve the feed wire very close and sorta parrallel to a
leg how much 'worse' the dipole overall will be

vs say does it pay to switch to another type of design say ocf
and or even end feed it would be a 'easy' question to answer if i
really knew the effeciencies of each compared, in my particular
situation

the freq i typically use are 160-10 and sometimes 6m

do appreciate the reply