How to Build and Tune a Tri-Band Ground Plane Antenna
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- Опубликовано: 28 авг 2024
- ANTENNA NIGHT PLAYLIST • #MNHR 2020-11-02 Anten...
I have been wanting a versatile antenna that I can take with me on my SOTA expeditions that has better performance than a rubber duck, but that I can use with my BTECH UV-5X3 tri-band HT on all three bands - 144MHz, 220MHz, and 440MHz. I didn't want three separate antennas and this fits that requirement. In this video I walk through the process of building a tri-band ground plan antenna. From build to tuning to a couple of test QSOs, this video will help you build your own, start to finish. This versatile antenna design is not limited to just 2m, 1.25m and 23cm. You can modify the project to fit your circumstances.
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This is the best ground plane project I've seen. It's my next antenna project. Those solder joints will need a solder gun or torch to heat it up enough. Or get those connections tig brazed.
Great work. I'm new to the ham radio world and I am studying for the test to get my amateur license. This is the best antenna I have seen for what I'll be doing. Very helpful.
Hi Devin - great to hear you are studying for your license. I hope you pass and I catch you on the air with your newly constructed homebrew antenna 🤘
This video is an invaluable instruction into building a simple yet effective 1/4 wave antenna, well presented too. Thanks for your effort.
Hi Dave - thank you so much! I am pleased you got value out of it. 73
Charlie NJ7V
Everything old again is new again! as the saying goes. I built the exact same antenna back in 1972, the first year I was licensed. I scrounged all the parts. cost $ 0. And like yours Charlie it worked great, thanks for keeping an great idea alive and well. 72/73 gud dx de Ellis WA1RKS
Very true! It's a great design and I had no idea the exact same antenna was around in 72 but I'm not surprised. I'm actually relieved because somebody I know claims it's their invention and I was hoping they wouldn't challenge me and ask me to take the video down. This eases my mind. Sheesh some people huh? LOL
Let's appreciate the tickness of the cable on this guys lawn.
We all LOVE thicc cables, dont we
LOL are you talking about the garden hose in the back yard?
Likely the best videos I've seen on such a versatile design.
Wow, thanks for the compliment and I appreciate the support.
Great idea using the collapsible antennas Charlie. I have used 14 g. house wire with great success for vhf.
Thanks Malen, but I can't take credit for the idea. I copied the idea form others who have made it here around my parts. It is pretty cool though. It's my first ground plane.
Great video. A few suggestions... Liquid rosen flux is really helpful for preparing such metal surfaces for soldering. Use brass screws... they take solder well. Finally, use a soldering gun for heavy jobs such as connecting the whip to the socket.
I'm so glad you added these suggestions - ALL very good and valid. Thank you. I hope those who find this video take the time to pop down and read your comments.
Great video. Am I the only one that did not know about leaving a stub of solder on top of the center conductor connection is a Great Idea? My wife always tells me I take the long way to anywhere.
HAHA! I think it's just you and me in that camp. I only learned about trick right before this recording. Glad I was able to pass along a good idea! Thank you for visiting the channel.
I may make one of these for a my Go-Box. I like the fact you can collapse it all down, fairly small and compact, for travel, except the mast! But replace it with a sectional mast, and your in business!
Yes, this would be great for the go-box. I regret that solution for a mast now. At the time it seemed good, but there are better solutions. Good luck with the build!
@@RedSummitRF I was looking at upgrading the rig: Change the Vertical Beam to a BNC mounted version, with a BNC to PL-259 adapter. Change the base to a PL-259 female, to Female base plate. This way you could remove the vertical beam, then fold up the horizontal elements, to pack it all up in a stuff sack.
@@chrissewell1608 Brilliant!
Looks great. Would love to see the specs on the length of each band.
Well, I just use the West Mountain Radio online calculator to get each length www.westmountainradio.com/antenna_calculator.php
Then I added 6 inches to be sure, added the length to the antenna system, and cut to resonance using an antenna analyzer.
I honestly don't know what the actual lengths came out to, but less than the online calculation, because I tuned to the CW QRP calling frequencies.
Hi Again Charlie. Yep it worked so well on 2m,220,400, I scrounged up some old CB whips off some old talkies and made one for 6m and 10m also. and that worked great too!. de Ellis WA1RKS
Nice!
Thanks for the post 📯
Thanks for watching
Superbe realisation polyvalente et très ludique
73 de F4IWJ
Merci d'avoir visité la chaîne et j'espère vous voir revenir.
Thanks for sharing, it's a brilliant idea. DW1-QEW, Philippines.
Thank you. This wasn't my idea, but nobody was talking about it so I thought I would share it. Thank you for visiting the channel.
Do you still have this antenna? It would be interesting if you could make a video testing the SWR by adjusting only the main element, leaving the radials to a certain position during the entire test, lets say, leaving the radials all to minimum and adjusting the main element only, and see how it performs, maybe? Anyway, great video 🎉
I do still have this antenna. That is an interesting thought. I'm adding it to my video ideas. Thank you!
@@RedSummitRF Nice... keep up the great work!! Great channel 🙏🏽
Very well done! Thanks!! N9RAN
Glad you liked it! I appreciate your support.
Thumbs Up "Red"
Thanks JT 6188 . . . what's your name, or do you just go by JT or something?
@@RedSummitRF It's a secret. BUT, you do know me. I'm a "red" too.
Hi I really like your video. I'm not good at building antennas but I don't understand how you attach the central antenna. how do you stagnate hot poo thanks. excuse the English but I'm in Italy and I'm writing with the translator hello friend
Hi and thanks for your question - This phrase probably needs another attempt at translating "how do you stagnate hot poo". If I understand your question, the answer is I drill a hole in the bottom of the antenna, push the pin of the SO-239 into that hole, and then solder it. It has an electrical connection without soldering it so the solder is just to hold it in place. It is a lot of metal so you need a very hot, large iron to have success.
Nice !
Yes. It's a fun project and reliable antenna.
What is the ranges of antenna?
Well, I hate to give this answer because I doubt it's what you are looking for, but it depends on numerous factors. I don't think anybody could give you a definitive number.
What is maximum power transmission?
I have not tested it. I have put 75 watts through it no problem.
EXCELENTE ... 73" LU9DRC
Thank you
best my friend JZ10DMB
Thank you Willi!
well that isnt really a triband, this is ANY frequency within your antenna telescopic range.
Truth!
Are the telescoping antennas long enough to operate 6m?
Same question
Not the ones I was using. no. You'd need them all to be over 5 feet in length. I haven't searched for a 5 foot whip but I will say that I use a couple buddystick whips for a homebrew 6 meter dipole. I imagine those would work on a ground plane but it would be rather cost prohibitive.
answered in thread just now
@@RedSummitRF I have two Hamsticks per band from 6m to 80m that I have been using as a dipole. I have some ideas to make an adjustable ground plane for 6-80m GP using 102” Whip antennas... it might need to be put onto a larger mount to make it work... I need to get off my behind and start building it.
@@Gravel_Rat78 nice!