Hi. I live in NYC. Everyone knows we have a lot of buildings here. I buy the Ed Fong GMRS J-Pole Antenna. My communication are way much better that before and I have 100 ft of cable, that not good, but this Antenna Work Prefect.
@adamivanecky39072 жыл бұрын
you can make a home base uhf collinear 3dbi or 6dbi or 8dbi or 10dbi or 12bdi or dbd. short one,s are more use in hilly terrain the longer the antenna are used for flat terrain.
@Last_day_events2 ай бұрын
At 32 min, the very important part, he is cut short. Come on. Very frustrating.
@galipan6213 Жыл бұрын
Great video….thanks++++++++++
@stelvio54872 жыл бұрын
coil delay how to calculate inductance 2.4 ghz antenna? thanks
@barrykelly27223 жыл бұрын
Mr Fong is such a brain when it comes to this stuff.
@j.kevinhunt1473 жыл бұрын
The delay section of the super-J does not have to be made of twin lead and does not have to be a flat extension! It can be curved around the radiator. It will work fine. It can be made of stiff copper rod curved around the radiator using a steel can cut in half longitudinally, as a form to shape the phasing section. Also, I've always reversed the center conductor and shield connections rather than leaving the shield interrupted, in the coaxial colinears. I'm surprised it works with the shield. Interrupted - Kevin WA7VTD
@full_metal24524 ай бұрын
2:31 😂 This didn’t age well 💉
@noelmangion21572 жыл бұрын
I make a colinear super j pole whit 4 phases,,, incredible
@MeOnTech2 жыл бұрын
Still use your antennas!
@hardwareful Жыл бұрын
Presentation starts 1:54
@doesstuffoutside3 жыл бұрын
Thanks for putting this up. Helpful primer on collinear antennas.
@W6IWN_Radio8 ай бұрын
Thanks for all of the great information 👍
@AlienRelics Жыл бұрын
You've convinced me to make a "Slim Jim" rather than a colinear. I have some 300 ohm twinlead left from my days repairing TVs and installing TV antennas. Under 50W, I'm thinking this should work.
@Bond20254 ай бұрын
I have always found a Slim Jim to be the best performing antenna. Colinears are not that useful.
@zoozolplexOne Жыл бұрын
hi mate, thanks for sharing !!!
@adamivanecky39072 жыл бұрын
are you guys trying to make a 477mhz uhf cb antenna
@AlienRelics Жыл бұрын
CB is 27MHz. Did you mean GMRS?
@TheHsan22 Жыл бұрын
477MHz is Australian UHF CB. They also have conventional 27Meg CB .