Copper J-Pole

[chadlpnemt]

I don't quite understand the "inner of the coax and outer of the coax". Does that mean the copper braiding surrounding the plastic (or foam or whatever) inner core is the outer? And the skinny middlemost wire in the very middle the inner? Thanks.

[Cabocodera1]

EXCELENTE VIDEO FELICITACIONES.

[w3mq]

That was excellent information and instruction!

[scarp690]

You attach the coax a few inches above the 2 joints, and may need to move up and down for proper tuning..

73's

[mgolden2]

Could you please do a followup showing how and exactly where to attach the coax? Thanks

[PetersonSulib]

thank you man

[PetersonSulib]

@PetersonSulib may i ask how to tune for lowest SWR?

[popefelix]

@PetersonSulib Adjust the position of the coax up and down on the j-pole. You'll need an SWR meter or antenna analyzer. Make sure that the center conductor and braid remain at the same height.

[chucumitero]

Excelent. Mark.

73

[kb9vbr]

Great video. J-pole are a good performing, inexpensive antenna. I love J-Pole antennas. Click on my callsign to the left of this post for more J-pole related videos.

[carterproductions]

Just built a dual band 2m/70cm J-pole today :) Works great, and was done in less than an hour!

[Djorder]

hi

Is this antenna works in cb radio mod?

73´s

[iz8esx]

@Djorder

the antenna's dimension are bigger for lower frequencies...

a cb j-pole will have bigger dimensions.

[Djorder]

@iz8esx

Thanks

[ryanperry90]

thanks i just made one i found some old coper pip and fittings i do not have a antenna tester but it works ok

[TonkoJursky]

I also make this antenna and work UFB .

Easy to make , cheap , grounding .. I think

the best antenna for start make QSO . . .

73 9A7PJT

[N0rthwestRadio]

If you search KI7ZD + Jpole you will find plans to build a collinear J-pole antenna that works even better! And its dual band. Great Video!

[TonkoJursky]

@N0rthwestRadio Where is that site for dual band J pole ?

[WILLIAMWOMBAT2007]

built a copper jpole today for 2m just for listening on a yaesu vr120d works like a dream knocks spots of any discone ive used . I could even pick up the marine band on it 156-157 mghz

[Tornerox]

Muy bueno !

Good video !

[chillywit]

Why stop there? Make a collinear antenna having more gain stacking another 1/2 wave length of copper pipe with a 2" space on top of the radiator with a hardwood dowell. Electrically connect the two elements with a 1/4 wave length of heavy copper wire bent into a U shape, and solder into place.

[tubesman7]

I guess he made the mistake of assuming that a ham can figure out things on his own. But it can also be said that since this is a how to video then it should say something about using hose clamps to connect the coax.

[nelroshennie]

With a good solder job, hose clamps aren't a necessity. Also, metal hose clams would interfere with normal operation. One could also use what I call the "Duh Factor" otherwise known as common sense.

This design is considerably smaller than mine, but I just finished one tonight. Perfect working order and no reflected power.

~kc9lfd at kc9lfd dot org

[PatCarolton]

This is more of a plumbing demonstration. Sweating the pipe is relatively minor--mounting, wiring, and tuning--that's what a ham needs to know. Simply saying, "connect the coax" isn't enough to make this an interesting demonstration.

[Resdon111]

Agreed, I just built one last night, but he says nothing about how to connect the coax, or tune the antenna.

[PatCarolton]

Looks like a lot of work--only to have the audio out of sync. Anyway, good video. Apparently for the absolute beginner.