Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old May 28th 09, 07:57 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jun 2008
Posts: 133
Default What's the Dealio with the J-pole?


"Bob D." wrote in message
...
I decided to install a 2m FM rig in my garage to stay in touch with the
local repeaters while working on the car. I want a quick and dirty homebrew
antenna at the roof line. I know the J-pole is a popular 2m antenna, but
why??? The J-pole is basically a half wave antenna fed at the end, right?
At 2m you are only 19 inches away from the 50 ohm feed point (a classic
dipole), so why not just loop the coax into the middle and forget the
matching stub? Am I missing something?

If I do this, would a clip on ferrite at the feed point make a good
choke-balun?

--
Bob D. ND9B



Ho Bib

I have used the ferrite clip-on beads for 2 meter antennas. They work
well for me. You will be able to test them by assembling your simple
antenna and see how warm they get after transmitting.
Keep the coax perpendicular to the dipole, dont "loop" it back parallel to
the dipole.

Jerry KD6JDJ



Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
J-pole 144/432 Radio Vintage Antenna 4 August 14th 07 04:22 AM
J Pole Amerigo Vespucci Antenna 4 September 9th 06 07:24 AM
J Pole [email protected] Antenna 4 July 16th 05 01:25 PM
J Pole for 40 Richard Antenna 2 September 20th 04 09:12 PM
6m J pole Barry Antenna 4 July 14th 03 08:04 AM


All times are GMT +1. The time now is 12:24 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017