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Old January 28th 04, 12:17 AM
Stephen Cowell
 
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"Jimmy" wrote in message
. com...
In the plan I have for one it calls for a piece of fiberglass rod, others
bakelite. to keep the two sections of the J at the right sepration.


Are we talking regular J, or Super J here? The
antenna you're describing is a Super, a colinear
array with the middle phasing section. In a normal
J-pole, there is no insulator needed.

Here's a confusing point from the original post...


I recently built a two meter j-pole.In the plan,I saw no mention of pvc
use.Yet,I had to place a piece of pvc between the two uprights to get
the swr to fall.Is there something I missed?
/

Is the pipe used in an insulator fashion, or
is it used to spread the Q-section? I believe
it's the latter... if so, the newbie can just bend
or re-solder the pole so the spacing's correct.

And if the newbie is describing a 300ohm
twinlead J-pole, then I give up.

Somtimes
mechanical rigidity is enough, for one like the latter search for "copper
cactus".


A thing of beauty... I've got a nice copper
J for six that I'm considering converting to
the saguaro configuration.
__
Steve
KI5YG
..



 
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