DIY 10 Meter Dipole For Under $10 Dollars!
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- Опубликовано: 12 янв 2023
- How To Build A Dipole Antenna For 10 Meter Ham Radio. Quick, Cheap, And Easy!
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What a PERFECT time to illustrate how easy it is to make a 10 meter dipole. Any technician that has not been on 10 meters this sunspot cycle is in for a REAL TREAT these days!!
Thank you for making this excellent and enthusiastic video.
Cutting antennas old school - they way we used to do it. I remember building a 2 meter ground plane vertical using just a SO-239 and copper welding rods. Worked great.
That's the way I grew up, that's they way I'm gonna be!
I made mine out of scrap "Romex" 12-2 wire. Could roll it, fold it, or mold it to my needs for carrying. I put a small loop on top to hang it, and 4 radials soldered to the screw holes... those were the days!
"Copper welding rods"? Depending upon what you're talking about, it could be bronze *brazing* rods or copper-coated *steel* oxy-gas *welding* rods... Big difference in the processes (brazing vs welding)...
I made a 6m speaker wire dipole as my first antenna. I run QRP most of the time so I didn't even need coax. Speaker wire the whole way and terminated with a bonding post that has a BNC on the other end. It was really cheap and compact and it worked well.
It's hard to remember that you don't have to spend a fortune to get out there on the air.
Love the production quality of your videos and the fact that you take time to make sturdy antennas for the 10M band. And, of course, all you do for the ham Tech folks.
Thanks so much!
Excellent video on making antennas. When I got licensed, I didn't have an analyzer either and managed to build a 10m dipole and using less than 100watts, worked the whole world. Also like how you use ordinary objects for your projects, like speaker wire and a cheap cutting board. That's a big part of ham radio, improvising. Keep up the great work!
I made this antenna last week and put it up Friday at home for winter field day. Talked to Russia with no tuning on Friday on 10m. Started on Saturday field day with my G90 and had a ball. Maybe I can reach you on your livestream next time. 73. KD2UTJ.
Step 2. Do the same for 20m and make it into a fan di-pole! Step 3. rinse and repeat (40m, 80m etc). This is exactly what I did for my first antenna but I start with 20m, it worked really well, the separation between the different elements is not that critical as long as there is some.
When you thread the wire through the end insulators, don't pull in the slack. Leave three inches hanging out the end. It will make no difference to performance, and makes the final trim quick and easy.
That's a good idea. Why didn't you tell me that earlier lol!!
@@hamradiotube Hello Sir, My name Shankar; call Sign S21LD. Thanks for this nice vedio which is really helpful for the new HAM. BTW, would you pls clear about the wire length, actually from which point the wire length have to measure? I don't have any antenna analyzer, so I am worried about my transceiver. So, finally need to know the wire length start & end point. 73
Fantastic video and demonstration of the tuning process. I’ll be making this thing, thank you!
Great vid - enjoy all your projects and reviews. I've just bought the components to make this antenna! Thanks
Nailed it!!! That was fantastic! I’m going to go build one right away!!
Great video! I made a similair 10m antenna but I used PVC fittings. It works, but your is a lot easier I think and looks much lighter, Thanks!
This is awesome! I'm a brand new tech ham looking to build on a budget. This blew me away. Thanks so much!
Thank you for this!! Loving 10 meters right now!
I just saw this video a few days ago. I 3D printed the "cutting board" shapes and built one. On the G90, this antenna, and FT8 I made contact in Japan on one side and the UK on the other, of course, everything in between. Great video!
So simple yet so effective. Great video
Thanks for the video. I’m a new ham and recently got the Yaesu FT-710 and needed a quick and simple antenna to get on 10m. I made this with stuff I had around the house and is working great. Made contacts in Virginia, Canada and even Ireland.
This is a really cool comment. I love that new hams are learning the old skills and how we always used to do things. The main thing to learn is that when you measure SWR if it is lower at the bottom frequency then you cut it. If it is lower at the top frequency then you add some to it. Now because you are using a FT-710 and that can do 100W, I would suggest you look into blauns ( do a search for ugly balun ) or look up how to make a current choke balun. It will reduce the nasty RF on the outer of the coax. They are not hard to build at all. For a QRP radio like the one in the video, RF on the outer of the coax isn't really an issue. The other thing to note, this 10M dipole will outperform most commercial antennas that many hundreds of dollars because of a few factors. It is actually resonant on the frequency so it works perfectly, it has a ridiculously low SWR meaning no tuner needed, and you can get the whole antenna up 1/2 a wave length horizontally because it is so light and easy to put up about 16ft. And... drum roll... it has directional abilities too so if you want to work Europe for instance you just make sure it is broadside to Europe. Everyone should have one of these.
Thanks for the video...its good to know as an old beginner I need all the help I can get.
Love the 10 meters content lately. Really catering to us new techs. Thanks a lot!
Hey thanks so much!
i just made the solderless version of this. super simple. thanks for creating other ham nuts, 73
Good work Mike good idea to use the FT817 to tune it if its the rig you intend to use, those rigs soon let you know if its not happy with the antenna.
Mike, this is awesome! Thank you!
Great. I'm guessing this technique will work for any band. Pretty excited. thanks!!
You are officially my new hero! Thanks
Great video Mike!
Thanks!
I loved the video. Keep them coming.
Thank you! Will do!
Love those cutting boards...I keep several in stock. Add a heat-gun to the game and the possibilities almost endless. 🖖
Love the simple and effective antennas Mike. It's like Christmas all over again! 🤣 Fun stuff!! 👍📻⚡🎸🐓🤘Cheers! Tom - WA7FLY
That's it, the great Metric Mike! Way to go!
You got that right!
Just saying as a Canadian, and just built a dipole today .. I used inches. But I did use the RigExpert as make it long and then trim. Thanks Mike .. nice video.
What an excellent video.
M3 nuts and bolts? Who are you trying to impress ... Lord Callum? 😁😁🤣🤣
Lol! No. Well, maybe.
Better DX to EU if you measure in metric.
@@Aimsport-video I'm hoping so!
Bow to lord callum lmfao 🤣 😂 😭 😆
Looked like a 3d printed key. Any one with a 3d printer buys m3 nuts and bolts in bulk
Metric Mike.. Finally! :)
Dude I gave up on freedom units to make an antenna a while ago. Metric is so much better.
Thanks you for your help today
Not sure what I did but you're welcome.
@@hamradiotube ...for open our / my mind.
You are absolutely right - if there is no repeater - APRS is worthless. 😵
Until today I always thought APRS - a must have feature.
Buy a garmin inReach to my GPSMAP 66i and I´m on the safe side.
Hard words - but it's true.
Thanks for that.
73de from OE1 🙂
Great stuff. Good to see some getting back to basics. Now, if only we had worked out the wire lengths using pencil and paper.....:-)
Many thanks for sharing your video .
Wow! I'm studying for my General (test on Jan 20, 2024), not for the HF privileges but to prove that my 78 year old chemo brain can still do simple grammar school memorization. I didn't care about HF because I thought it would cost a bundle to buy a new radio AND some huge fancy schmancy HF antenna tower and array. But YOU have got me excited about moving up to HF now. I can afford stuff like this. THANK YOU! Now I really DO want to pass the exam.
@@shanemorgan12345 I did! I'm an official General now.
@@shanemorgan12345Yes I did. Damned happy about it too! 🙂
i just subscribed. Fantastic video!
Should consider investing in some sort of flux paste or a liquid flux pen especially for working on connectors, the stuff meant for PCB's rocks and makes your solder life _SO_ much easier! Adding more flux, when it turns liquid it transfers heat _WAY_ faster so you don't end up melting the dielectric/plastics on connectors, in your coax or roasting other tiny components if you start building kits! Plus the added flux cleans all the oxides off what you're trying to join, so you get a _much stronger_ bond that won't break easy down the road.
Sure... we use flux core solder so that's all we need right? Trust me, it's barely enough to get the job done. My buddy and his dad own an electronics business and he'd never even heard of using more flux before he asked me to do some soldering work for him, after I showed him I about had to peel his _jaw_ off the floor he was so surprised at the difference! 😅
Question: Isn’t a Balun/Unun 1:1 recommended? I want to do this but as a noob antenna builder I don’t want to wreck my radio.
I just ask because you may have this attached to the coax off camera.
Good video! Thanks.
Nice video! I’ve been making antennas with my grandson, and he’s getting hooked. What kind of coax are you using here, and for POTA in general? I’ve been using 8x, but I’d like something thinner and lighter.
Thank you for doing that!!!
Thanks for the video Mike! Making antennas seems so intimidating for a new ham like me. Looks like I got a project and an antenna to use for your technician ten meter. Just waiting on my 818 to come in
If you're interested in antenna physics or just generally learning how they work ARRL has a very good antenna book.
Simple. Cheap. Works great.
Hello! Great video. I've been thinking about getting my Tech license, and the 10 m content you and Ham Radio Crash Course are putting out right now is a big part of what has me so interested. I always tune into your Tech Tuesdays streams, even if I can't catch them live. :)
Unfortunately, I live in a 9th story high-rise apartment with no windows and no balcony, and can't drive, so actually getting on the air will be a challenge. I'm looking into options to remotely deploy an antenna.
(I bought an HF+ Discovery and a YouLoop to figure out how bad my reception would be through the walls of this 50+ year old building, and it's terrible. I can't hit (or even see) any of the FM 2 m repeaters from the clubs around me, and the only HF band I can reliably hear is 40 m--and I'm pretty sure I'm only picking up the strongest of that one. OTOH I apparently live in some sort of anti-RF fortress, so that must count for something.)
The lack of ventilation (and excess of carpet in every room) means learning to solder is also not really something I can safely do right now. I'd be interested in any homebrew designs that did not require a soldering iron. Maybe something with screw terminals?
On my cheap RTL SDR stick (£12) I could easily see the HF signal getting stronger with a ground. You could connect to a metal water or radiator pipe with a hose clip.
You could try the communal TV aerial socket for RX (or mains earth). Our house has an old UHF Yagi for TV on the roof like 5M high up...
It had better reception than my 20M long random wire across the garden, for listening to Radio Habana Cuba.
I could even tune and TX my Xiegu G90 on 40M using the TV aerial (using one part of the coax).
If there's a communal balcony out your front door maybe you could hide a wire under their carpet, false ceiling or skirting so it reaches outside.
Or even drill a hole in your wall and dangle an EFHW or Slim Jim outside. Pull it back in during the day if it's visible lol.
You can setup a squid pole in a park. Get a 7m one and the height will be perfect. Cheap and easy. 10m has been fun and active lately. Just got the parts for this and I’m excited to build it!
I am unable to tell from your video, but are the two wires 8’ 3” wires tuning horizontal or are they tied at a downward angel from the top of the pole. Hard to tell from the video. Thanks!
Thanks Joshua perfect Job 73
No problem Steve!
Jejejeje thanks 👍 Donald you The best
Hey Mike, well done. This looks much like an antenna I made a few decades ago. Mine was made from white plexiglass. I used the exact same strain relief technique. Even used Radio Shack speaker wire.
I'm not in the least surprised yours worked well. The dipole is such an easy to make antenna that you might be temped to think how could it work all that well. My friends, don't think that way. Basic as a dipole is, it is a very good performer. A note on construction: I like to wrap the wire around the center pin and solder it in place. This way the wire lays a little more flat against the center insulator instead of sticking up. Will that make any difference in the performance? I can't see how. It's just a matter of personal preference. I would recommend either brass or stainless steel for the screws. Ordinary steel rusts. Well, that's it for now. Keep up the good work. Cheers!
Mind blown!!! That looks awesome! I have two questions, if you don't mind. Does the speaker wire gauge influence performance? And, how well would you expect this type of dipole to perform in an attic? Sorry, one more, Do you think this can handle 100 watts? Great video, I'm pumped about building this! I look forward to your response. Thanks!
Some but not really, better than no antenna at all, and yes.
This I've gotta try and can't wait to make one. By the way, what's the proper length of coax should I use with this dipole, or any length will do? Thanks for sharing.
If the antenna is near 50 ohms, there's no magic coax length. A half-wave length of coax would be sure the impedance at the antenna is the same as what you see at the radio end, but that's not important with this antenna.
@@paulplack490 Thank you Paul and 73s....
Thanks!
Just made a new 10m dipole here in Canada. Cost $45. Most of it was the $20 for the 20 ft of coax.
Great video! I’m a tech and been working the birds for a while. Id like to try 10m. If I build this dipole and run the feed wire into my house- how do you ground? I’m very new if you haven’t noticed. Thanks!!’n
I was asking about the tuning on the opposite end from the SO-239. < . . .> Can I leave the wire, long out of the 3rd hole and trim it? Or is the length at the 1st hole? This will be an attic antenna so weather isn't a factor. I do appreciate your videos thanks. Jim KB8pet
Great video, can anyone explain why you don’t need a balun? Cheers
So it's an inverted V. Length for resonance will change a little with angle. Impedance will change with angle. A choke would be a good idea, your measurements becoming erratic may have been caused by CMC.
The measurements becoming erratic were due to a problem with the first coax I was using.
Where did you make the cuts ? Does the whole wire going through the 3 holes of the insulator count as part of length ?
built 3 of these, mailed 2 of them to friends in Utah and Florida. Mine is outside between the house and tree. 51 countries contacted so far. What do you think the power rating is?
Speaker wire, the duct tape of antenna building :)
Darn skippy!
In other 10m dipole explanations I’ve seen that a 1:1 balun is needed where the feed line connects. Is that not needed here? I’m trying to confirm before I build one myself.
I have a question. Say i place the connectior into a metal object. Like a steel pannel. The place the positive side into a small pvc pipe and seccure it to the pannel. I have a steel horse trailer i use as a ham shack. It is dry. Has 12volt. It is also solar powered. Yes, use it to move horses. Yes, i use it when camping. It is a goose neck. I have this huge space above the hitch where the radio lives with batteries, sadle, food, water, and a sleeping bag. I have a fold down table and chair on the front bulkhead. It is also a reloading station. I kinda want to turn the entire trailer into an antenna. Or just the ground plane.
You should watch www.youtube.com/@hamradioqrp-k0klb He turns all kinds of farm equipment into antennas.
Another great antenna build! Thanks for sharing. 73 NM5SP Alan
Which CW paddle is this? where can I buy one? Thank you
Might be nice to have links directly to the parts on Amazon. I found your storefront, but could not find the adapters there.
Great video. What is the Watt limit for SSB or is this antenna for QRP?
Oh gosh, I’m not really sure. I do know you can run 100 watts through it all day long.
Lil guy can't help that he's cute and proud of himself.
Oboy - a "Pride" thing...
Hello
Can I use 3.5mm Jack(TRS Plug) in dipole antenna instead of coax!? And how to attach both end to 3.5mm Jack? Please let me know..
I have to solder one end of dipole to left(tip) terminal of jack and another end of dipole to Right(ring) terminal of jack and separate another wire from grounding pole to ground (sleeve) terminal in jack !!?
Or
I have to solder one end of dipole to left(tip) terminal of jack and another end of dipole to ground(sleeve) terminal of jack!!??
I just made simple dipole antenna splitting speaker wire.. i just don't understanding how to attach both ends to 3.5mm jack..
And of course is there any lightening/electric threat?!! Please reply..
Thank you..
Is there any issue connecting an unbalanced coax to a balanced dipole?
I'm new to antenna making. Are you running that dipole in an inverted V setup instead of horizontal?
This looks simple to make. Is there any issue building a 20M/40M/15M in the same fashion with those BNC connectors?
I was thinking about a 705 since it doesn't have a tuner I could make one of these antennas for each band and work FT8 or would it be better to buy an end fed antenna?
That would be an inverted V, yes. You can use this same technique to make an antenna for whatever bands you want. You would want to get the antenna higher off the ground as frequency goes down for better results though. I think making antennas is an important thing to know how to do as a ham and would always encourage it. Look up linked dipoles. You can get all the bands you want by simply "plugging in" more wire to the end of the existing wire to lengthen it to the desired frequency. You don't need to make separate antennas for each band.
@@hamradiotube Thanks. Think I may have to give this a shot, well after I finally settle on which HF radio I want to start off with. Will also look into linked dipoles. Enjoyed watching you and Josh last night play with JS8Call
Great video! Thanks. We’re you at Huntsville State Park?
always
What kind of power can you put through that build? (And thanks for helping us Technicians getting into the hobby deeper than repeaters).
I do 60w on 10m FT8 all day long on my speaker wire dipole and no issues.
I wouldn't be afraid to put 100 watts through it.
The limiting factor will be the breakdown voltage of the three cutting-board insulators. 100 watts is well within its margins.
Does the wire gauge make a difference
Might you point me to your "10m mod" for the DX-Commander Nebula ?
very cool
For POTA will three be any concerns using bnc instead of pl 239?
Nope! Just make sure the coax is strain-relieved with a zip-tie to the antenna's center insulator, so the weight of the coax doesn't pull the BNC connection apart. And that BNC connector is fine for 100 watts, too.
Hi Mike, what app do you use to calculate the size of dipole antennas?
Strong 73 PY4RP
There are plenty of calculators online. Personally, I would go with the basic theory. Around 300/f for metres. Divide by 4 for each leg length. Then shorten a little for 'end effect', and a little more for the insulated wire. You're probably looking at around 7% shorter. However, this is an inverted V. There are Inverted V calculators, as the angle changes the resonance a little. See, simple. By the way, inverted Vs are useful because they are close to resonance at 50 ohms, as opposed to a horizontal dipole.
is it safe to assume a dipole made with 2 hamsticks would be the same about 16 feet off the ground
what is the best wire to make dipole?
I don't see any point in using a connector at the antenna. I pigtail my coax and seal it up. Pigtails go to stainless steel screws which also connect to the antenna leads.
I have a bulk supply of SS 10-32 X 1" screws, nuts, and washers from McMaster Carr which proved to be both very handy and economical in the long run.
How well would this work oriented vertically?
How do you check SWR? I thought you need a special device for that, can you do it with SDR and SDR software, like HackRF for example?
Most HF radios have an SWR meter built in. His for example was the small bar graph looking meter that popped up when he keyed. It started at about 3 then tuned down nearly nothing.
How does this same tune work down into the 11 meter band?
Will this work for lower bands by only making the wires longer?
Yes it will
For a half wave dipole antenna, dividing the frequency in MHz into 468 will give the overall length in feet. Then to find the half wave, divide that number by two. This will give you the length of each leg of the antenna. Mike's antenna= 468/28.400(MHz)=16.47 feet divided by 2= 8.24 feet per side. substitute another frequency for different bands... give a little extra length for tuning..
KN6ZHW / Dude, Bro, Hammie, Station+, ...
I have been a HAM for seven months without a single HF contact using the long wire antenna HRO sold me. I made MY FIRST ANTENNA...YOUR 10 meter Dipole using 10 gauge wire and a small switch box for center connections (It was still very inexpensive and really looks great and is weather resilient) then...using my FT710 checked the SWR @ approx. 1.0, 1.1, 1.2 @28.300, 28.400, 28.495. Then I went to the 10 meter band and made MY FIRST HF contact at 28.390 with a station 2000 miles away in Wabasha, Minnesota.
Thank you so very much.
KN6ZHW
How do you ground it? I plan on trying to make this antenna but how do you ground it? I didnt see you mention or add a grounding component to ground the antenna.
Don’t need too.
@@hamradiotube Why?
Very nice video Mike !. greetings PA0KGB
My EFHW 80 doesn't like 10m. I really need to make a simple dipole.
where is the length of measurement for antenna leg? at the end of the insulator or at the 3rd hole?
Technically it would be where it is soldered to the SO-239.
Send this in the chat. But LDG 1:1 1:4 1:9 1:49 are solderless. But cost and weight are involved.
I live in a townhouse with an HOA, any chance something like this would work inside?
Im sure it would work to some degree. Certainly better than no antenna, but make sure to lower your expectations.
Super!😀
would you please go over checking for a short? I think that's how I messed up something.
Would this work for cb radio or gmrs. Since I can't get a ham license I been on cb for a while now and it be nice to make my.own antenna.
Yes I made one of these for cb, it works well
awesome
Is this a new "QRP Geek" product for sale?🤔
Does it need a choke?
can we get a 40 & 80 meter NVIS diopole video
Does that work just on ten meters
If I don't have a set meter is there another way to check the swr
Other than an antenna analyzer, swr meter on your radio, or a NanoVNA, I don't think so.
how many watts is this good for?