The Half Square Antenna - End Fed
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- Опубліковано 3 гру 2022
- Experimenting with the half square antenna and feeding from the end versus the traditional corner feed point. #HamRadioAntenna #amateurradio #hamradio
Tim G5TM Half Square video:
• Ham Radio: Make Your E...
Callum’s DX Commander video:
• Unlocking the Secrets ...
Waters & Stanton Half Square video:
• ULTIMATE SMALL GARDEN ...
Paul OM0ET UA-cam channel:
/ @om0et
Well here is yet another neat antenna to build. Late this afternoon I was reading about EFHW antennas and, voila, up pops your video. I’ll try it tomorrow. Tnx.
Thanks for watching! Have fun!
Awesome qsos on this one
You have definitely figured out a way to turn the work trip into a vacation Nice job!
Thank you sir!!!
Thanks Walt! Great job and well done on showing how well this antenna does on air.
Thanks so much Tim, seems every time I research an antenna one of your great videos pop up. As I stated in the video, thanks so much for your knowledge and content. It’s amazing.
Back in the day, I put up an 80m half-square corner fed across the open end of Ohio Stadium. Flat top was probably 130' above the ground. This was after football season and in the dead of winter so nobody at OSU complained or even noticed and this was before the rework of the stadium when the ham club had to move. Best 80m antenna I've ever used. Working northern EU from Ohio at our sunrise, YB long path with 100 watts pileup buster. Amazingly simple wire antenna.
Outstanding results. I keep coming back to this antenna in my design searches but never come across folks actually showing results. Thanks for sharing.
Thanks Jeremy!
Walt if you read Les Moxons book 'HF antenna for all locations' he shows you this antenna in this configuration, if you can find a copy it well worth reading, i was given mine in 1982 by my friend who taught me CW when i was just licensed at 16 years old !!
Great video as always, best 73 from France.
Thanks! Wow I have a copy of this book at home back in the states, I’ll go back and check that out. Thanks for sharing that! Best 73 from Poland
Glad to see you try this. I knew you would have great results
Thanks! I’m really looking forward to getting that N9SAB corner fed up on the beach.
That has to be my antenna when I move to a house with backyard :) seems like a great find!
It’s a great antenna for the backyard. Thanks so much for watching!
Mahalo (thanks) from Hawaii for the vid and the links.
Mahalo! Thanks for watching!
I love that ur doing this shit in other countries while traveling for work. Walt keep on walking and talking ur beautiful hamness!
Thank you! I absolutely will
Wow, I need some time to experiment with this with my own efhw. Really great use of fellow youtubers to pass on the great work too. Awesome Walt, well done
Thank you Gary!
I have a few of Tims antennas and they are high quality and he is great with customer service. I got them off eBay.
Great video. I"m going to have to try this.😁😁
Thanks! Go for it!!
Your handwriting is ridiculously neat. :)
Haha I’m old and was a drafter way back before Computer Aided Drafting. I still like to sketch up my ideas the old school way. Thanks for watching!
ur antenna ideas are great & I really enjoy seeing how u do it; keep up the great work & Happy Holidays from TN! 73 de WA4ELW 🇺🇸 dit dit 😃
Thank you so much! And dit dit I’m currently learning code so there will be videos of me stumbling with CW portable soon. 73, Walt SP/K4OGO
Another cool antenna, Thanks Walt.
Thanks Adam!
Great antenna information Walt! Thanks for the demos. That half-square is something else! I might try experimenting and modifying my existing rain gutter antenna setup to emulate this design. It currently resembles an inverted-L, about 10-ish feet vertical and 40 feet horizontal. Also, great to see you on the livestream this week with the group! 👍📻⚡️Cheers & 73, Tom - WA7FLY
Thanks so much Tom, the rain gutter idea sounds awesome, good luck! All the best my friend!
great video - enjoying the channel. Tim N9SAB builds some great stuff, I own 2 of his OCF dipoles, one for 10-40 and one 10-80. I own a 10-40 end fed from Tim. All great I also have a QRP Carolina windom and one of the QRP end fed, just great stuff. Thanks.
Yes I love his antenna, so well built. Thanks so much for watching and commenting!
Thank you! I have been looking for a visual for this layout and wondering if you needed a counterpoise!
Thanks for watching, I'm glad this video helped!
Came across your channel by accident, love the content m0udb
Thank you so much Dave!
Well, well now I watched it. I‘m glad you like it as well. 73 de HB3XBL 👍🇨🇭
Thank you! 73 de K4OGO
Hi Walt, very interesting video mate. I tried one once on 40m, it worked great, quieter than my vertical on rx, but on tx the vertical with radials was better and only required one pole. Maybe horses for course's.
Well presented Walt.
I hear lots of polish sigs on 20m about 1 hour before dark here, but not found you yet, and i spent lots of time looking for you over the weekend, another day maybe.
Take care mate.
Thanks Brian, I tried hard getting over to ZL but with my low power calling CQ just doesn’t work. I have to patiently listen and respond to a call to get through. All the best my friend!
Also known as a "Pi" or "inverted U" antenna.
Nice going
Thanks!
N9SAB is an Indiana, USA call sign. I like knowing some of the regions involving amateur radio.
Ciao Walt, tnx for qso !! 73s de IU3BTY
Thanks!!! 73 de K4OGO
Another option, you could flip the antenna upside down, so that the horizontal portion is suspended just above the ground, and two verticals are held up by trees or poles - then you could get the 50 ohm connection at the ground level instead of up high
Very interesting video, Walt!
73, Walt NE4TN (TennTennas)
Thank you Walt, your unun made it through a hard snowy frozen week here in Poland working perfectly!
Hey, Walt! I know this video is old AND that you're very busy with stuff right now, but I came back to it remembering the way you were supporting the mast here: what is that thing you've got screwed into the lawn called?! I've had trouble getting the right keywords to google it!
No worries my friend. They are beach umbrella anchors. Here’s an Amazon link to the ones I have:
a.co/d/00lPLreD
@@COASTALWAVESWIRES THANK YOU. I remembered it wasn't "really" an antenna anchor, but I could not for the life of me remember what it was intended to be!
I hope things are going well, or at least have a path to getting there!
@@unclemikeyplays thanks! We are getting there.
I am planning to feed a half wave through one leg to the traditional feed point. I have that same green pole too.
Awesome! Good luck, I hope you have great success with it.
I have to make one off those one day…👍🏼
Pretty easy to do, thanks for watching!
Good content is always a pleasure to watch, still hope to catch you on the bands some day…👍🏼
Instead of using a coax spiral as shokes, directly behind the transformer you better let 2-4m coax laying on the ground, an then doing the spiral shoke. Never less, better use a ferrite shoke with 2-4m coax laying on the ground between transformer and shoke. In fact, the radiator geometry makes a very big difference on the radiation pattern. And that's no secret and not new. Inverted V geometry is really not recommended. Inverted L is perfect for all around performance 40-20-15-10m. Inverted U shape make it more a DX performer on 15-10m. All over all the EFHW is a simple and good performer, probably the best for portable outdoor operations. Your SWR should be lower. A well tuned EFHW give a SWR of max 1.5 and lower on all appropriate EFHW bands. 73 👍👍
Thanks for watching
nice experiment and results.. that's a keeper for future adventures.. thx for sharing.. k0klb
Thanks Kevin! I’m thinking a 10 meter half square over corn stalks out in the middle of the field
@@COASTALWAVESWIRES LOL... That's what I like about you.. Always the THINKER ! ! ... LOL... k0klb
@@hamradioqrp-k0klb I think we’re very like minded my friend
great video nice ideas 73 from kb2uew
Thanks! 73 de K4OGO
How did you attach it to the tips of your poles?
Tight wrap of electrical tape
Nice video Walt ! Would you have a 4:1 balun around? If so, I’d ask you to try building a delta loop. Everyone says these are great and quiet antenna
73
I do have a 4:1 and wanted to build one but these poles I have are like rubber, I’m bringing a better pole next trip to do a Delta Loop
@@COASTALWAVESWIRES they can be in triangle shape as well. So in theory, one fishing should be able to hold the wire. The balun would be placed in one of the corners on the ground, or close to it.
@@ve2zdx yes, I had plans for a 20 meter Delta Loop, to make it vertical and lower takeoff angle I planned to place the 4:1 a quarter wavelength below the apex on one side.
@@COASTALWAVESWIRES yes, that’s more or less where I place it too. If you could place the wire with plastic rings it would make your life easier. I found out that this distance between the apex and the balun works like a gamma match. If you have a nanovna it’s easy to see in real time what happens to the swr when you move the balun closer or further from the apex
Hi Walt, Pete from the England /Scotland border here. With directional antennas, does the signal follow great circle routes? I'm asking before setting up an antenna at home. M7DXE
Yes absolutely great circle routes. Check out this website, it’s an awesome resource: ns6t.net/azimuth/
Hi great video really appreciated. I have a question regarding the two greens poles. Are they metal poles or which material is it? Thanks and 73 DL1JH
Thanks! They are fiberglass fishing poles: Goture//Telescopic Tenkara Fishing Rod//Ultralight Travel Fishing Rod,Portable Collapsible Bass Crappie Rod,1 Piece Carbon Fiber Inshore Stream Trout Pole 10 12 15 18 21 24 Free Tip Set(Top 3 Segment) a.co/d/8GriK7A
@@COASTALWAVESWIRES Thanks let me check the german market for the pole. have a nice day. 73 DL1JH
@@DL1JH If you have a Decathlon Sport store near you they sell similar ones there, I actually bought one in Poland.
@@COASTALWAVESWIRES Yes Decathlon has it. I ordered now from Amazon 8m fiberpole. Just for information i tried already your presented endfed halfwave with a metal flagpole and fiber pole. But two fiber pole would be better. but anyway what i would say it works amazing. It was something difficult to do the SWR regarding the one side metal pole but after successful done the inverted U as the ENDFED work with my 10 W QRP with 59 in albania. Same station for 3 weeks ago similar propogation only 57. That makes fun with HAM RADIO and QRP. 73
73!
Good job! I have used half squares on 80 meters. Excellent antenna if you can not get a dipole up a half wave. That’s hard to do on 80! In fact even getting a quarter wave is sometimes not easy. Did you see my half square video?
@dandypoint. Where might I watch your video on 80 mtr half square antenna? Tnx.
Thanks! I haven’t seen your video but I will definitely go take a look
@@lawrencethompson465 This is the link to the Half Square. I also have about 30 videos on antennas you should be able to get to the Antenna playlist from this one. ua-cam.com/video/2SBGdPMnH-E/v-deo.html
@@dandypoint Thank you for this and the links. Appreciate it.
@@dandypoint
I wish my license would allow me to transmit on 20m
If you can get on 10 meters it’s becoming just as good for DX
@@COASTALWAVESWIRES 10m is my go-to band. I'm allowed there, also 12m, 80m, and CW portions of 40m and 15m. Although I cannot copy Morse, the CW portion of 15m is also great for FT8
Upgrade incentive.
@@axandio in my country the upgrade requires me to do a Morse test. I tried 5 times already, but I don't have either time or patience to practice and fail miserably.
In my 4th attempt I was 2 letters close to pass
@@rafaelgcpp Practice practice practice!!! You can do it! If you were that close, just keep trying as long as they let you!
i feel bad for folks who trust reports. hahhaha everyone is 59 59 plus hahha
Me too, that’s why I was glad I could hear and see my actual signal on Paul’s radio.
Walt, What do you usually use for your feed line to your radio?
RG8X coax