I make a 4:1 transformer out of coax and feed the J-pole at a higher
impedance point, this also gives a better match across the whole band.


"Dr. Slick" wrote in message
om...
(Dr. Slick) wrote in message
. com...


Ok, folks. Went to the local ham radio outlet, and
the dude said that the polyethelene foam RG-8 isn't very good in terms of
breakdown voltage, which is about 600 RMS, i believe.

However, RG-213 is solid polyethelene, with a BV of 3700 volts RMS.

So i went with the RG-213, and reduced the total turns to 4
(originally 6).

Hopefully this will not melt again.


Slick


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.564 / Virus Database: 356 - Release Date: 19/01/2004