my radio is here

[Captain Kilowatt]

I am going to make this one for my next 2 meter antenna....but they can be figured for almost any band if you can get enough copper pipe

Super J-Pole

and here is a regular jpole

J POLE ANTENNA DESIGN CALCULATOR by K4ABT

I built the Super J-Pole several years ago and it worked quite well. Then I replaced it with the 11 element yagi and never looked back.

I used 3/4 inch copper pipe for the bottom section and 1/2 inch for the top section. I used a piece of 1 inch diameter plexiglass rod for the insulator turned down to fit the 3/4 pipe on BOTH ends. I used a 3/4-1/2 inch adapter at the top to mate with the 1/2 inch pipe. I felt that with the larger size it would be stronger and it was going to be at the top of the 40 foot tower. For the phasing stub I used 3/16 copper tubing that I found somewhere around the house left from another project.

 

[Lazybones1222]

J-pole antennas it looks like the coax would just short out. both the center and the sheild of the coax one on small arm other on long arm. with both arms connected.

Yep - you nailed it. The oldest new guy trick in the book. Won't work. Don't waste your time. (snicker)

 

[kc9owm]

I've made em from copper and from tv twin lead, and the last one from latter line, and put it inside 1" pvc.They all worked well. I even once built a 2 meter tape measure beam that worked very well. The hams of old would laugh their butts off at the current generations love for buying everything premade. lol

 

[KD8NKK]

i am going to try to get the copper pipe and fittings i need. thanks for the help.i will let you know how it turns out. 73's

 

[KB9NHA]

my ft-2900r is finaly here. . seems to rx great. cant wait to talk on it.

Congrats Countryboy, I hope you get your Tech license soon & get on the air. I got my new rigs yesterday too but can't figure out how to install my antenna yet.

 

[KD8NKK]

good luck with getting your antennas up. thanks for all the help.

i got pricing all the supplys i would need for the j pole antenna and it was not that much more to just go to r&l and buy a diomond

CP22E $46.95
Buy CP22E
2m 5/8 WAVE 6.5dB 9'
The CP22E is a high-gain monoband antenna made from heavy-duty aluminum
construction, at a price your pocket book will like! Rated at 6.5dB gain, the CP22E is an excellent performer, easy to install and would be your best value in an aluminum 2 meter antenna.


Special Features:
Heavy-duty aluminum antenna sections
Encapsulated matching network for weather protection
Stainless steel mounting hardware and radials
Factory tuned, no adjustments required

Specifications:

Frequency: 144-148 MHz
Gain: 6.5dB
Power: 200 watts
Connector: UHF
Length: 8.9'
Wind Rating: 70 mph
Element Phasing: 2-5/8l
seems to rx fine cant wait to talk on it....:laugh:

 

[W5LZ]

countryboy,
Sometimes you're right, it's just as frugal to buy as to build, if you don't have what's required at hand. It's never as satisfying though. But, hey, for that first antenna who cares, right?
- 'Doc

 

[KD8NKK]

 

[148 Alaska]

I have been looking at the Diamond F23h
and I have the arrow osj 146/440 on the way should be here today, it will be the one to drag with me camping and such, if I ever have time to ....

 

[packrat]

You won't learn anything by buying your antennas.:bored:

PR