Ed Fong gives a discussion on the construction of VHF/UHF Collinear Antennas
Жүктеу.....
Пікірлер: 21
@barrykelly27222 жыл бұрын
Mr Fong is such a brain when it comes to this stuff.
@luish19779 Жыл бұрын
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.
@Bond20252 ай бұрын
excellent explanation.
@W6IWN_Radio6 ай бұрын
Thanks for all of the great information 👍
@doesstuffoutside3 жыл бұрын
Thanks for putting this up. Helpful primer on collinear antennas.
@j.kevinhunt1472 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
@zoozolplexOne Жыл бұрын
hi mate, thanks for sharing !!!
@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.
@Bond2025
2 ай бұрын
I have always found a Slim Jim to be the best performing antenna. Colinears are not that useful.
@stelvio54872 жыл бұрын
coil delay how to calculate inductance 2.4 ghz antenna? thanks
@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.
@galipan6213 Жыл бұрын
Great video….thanks++++++++++
@hardwareful Жыл бұрын
Presentation starts 1:54
@MeOnTech2 жыл бұрын
Still use your antennas!
@noelmangion21572 жыл бұрын
I make a colinear super j pole whit 4 phases,,, incredible
@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 .
@Last_day_events10 күн бұрын
At 32 min, the very important part, he is cut short. Come on. Very frustrating.
Пікірлер: 21
Mr Fong is such a brain when it comes to this stuff.
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.
excellent explanation.
Thanks for all of the great information 👍
Thanks for putting this up. Helpful primer on collinear antennas.
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
hi mate, thanks for sharing !!!
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.
@Bond2025
2 ай бұрын
I have always found a Slim Jim to be the best performing antenna. Colinears are not that useful.
coil delay how to calculate inductance 2.4 ghz antenna? thanks
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.
Great video….thanks++++++++++
Presentation starts 1:54
Still use your antennas!
I make a colinear super j pole whit 4 phases,,, incredible
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 .
At 32 min, the very important part, he is cut short. Come on. Very frustrating.
2:31 😂 This didn’t age well 💉