Enthusiastic Steve: Frankenstein Collinear Antenna NOT A MAD SCIENTIST
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- Опубликовано: 11 окт 2024
- Enthusiastic Steve and the Frankenstein Antenna:
A big thank you for clicking on one of my videos and a massive thank you to all my subscribers, if looking at my videos for the first time, welcome.
In this video I take an experimental Super J Pole (SlimJim Family) Collinear 4m VHF antenna out to the hills and test it on air.
Afterwards I describe how these antennas work and show you the make up/design so you can make one yourself if you so wish.
Experiment, basic wire elements and a couple of hours in the shed can produce surprising result. This antenna is scalable to 6m, 2m, 70cm and other bands including 12,11 and 10m if you have a long enough pole.
Have a browse over my other videos on my channel (@Stephen Legg), something for everyone including making a SlimJim and tests of 4m antennas, poles, radio tests, CB Nostalgia and much much more.
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All the best and thank you from Enthusiastic Steve M6WVV, 26CT2064 and YF50
PS I am NOT a mad scientist, just Enthusiastic :)
Enjoyed the video very interesting, atb John
Interesting Video Steve
Cheers Steve, great video M7DBD aka YF11
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My 4m antenna is a vertical is a colionear
i've seen these w a 1/2 wave delay coil, but never a 1/4 wave - does this make a phased delay so that it adds to the other halfwave? please explain your thinking
It is a proven design, it basically works as a matching stub, but has no effect on impedance if you bend it at 90 degrees or keep it straight. Other antennas this would change its impedance. Where the coax joins can fine tune the vswr by small movements up or down ladder line. Regards Steve
Thank you for your quick response keep up the great work