2 Meter Coffee Can Antenna




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g0fvt: It is a good demonstration of what can be done, incidentally IMHO the can is a bit small for 2m, ideally from the hole to the edge should be a quarter of a wavelength, I suspect this is why the whip ended up at 22" when I would normally guess at about 19". Nevertheless thank you for making a well presented video.

Patrick Murphy: Great videos as always but the audio in the could use some leveling... your quit voice vs the loud coffee can.

smallenginedude71: milo are still in metal cans and are quite large

jacky Parker: Done similar myself and it works a treat 

Kd8OUR: Sleeve antennas work well and are easy to make. paint cans work good too. You can even get away with using nothing but the coax if you have mad hatter coax hacking skills. Stick the whole thing in a fiberglass or PVC tube and seal. I work at an airport. VHF/UHF sleeve antennas, ground planes and discones. If you have an old mag mount the element can work well with a coffee or pain can. 

Shawn Rullens: you could a coffee can for 70cm too. 73 n3tee

Bill McGraw: Is that 5/8 of a half wave? I scribbled a long time, confused.

Robert Fern: impressive! I have to try this one but with a paint can since those coffee cans are collector's items nowadays. thanks for sharing. 73's

Jonathan Warner: Is it just the metal bottom of the can that is providing the ground plane? If so this should work with one of the cardboard sided coffee cans with the metal bottom. I wonder if extra radials would make a better ground plane for it?

26CT1520: Excellent videos, thanks. 73's

Ade Larsen: You don't have any paint cans ?? It's time for you to paint the house !! Make your wife happy !

Anthony W Stanton: Way cool video of a home-brew antenna! I gotta find a coffee can now and try it! Oh, a pizza pan works great as a ground plane as well! 73 de AC6GM

Mauricio Riqueelme: anto DB ???? uno ???? angulo de radiacion ?????

ad5kl: Great idea for an attic NOAA or VHF scanner antenna.

Fred Romano: Does it matter if the coffee is regular or decaf?

Mark Ruhland: This is a very cool design for a 2 meter antenna!!!

Jopa Liz: Может лучше с пивной банки?)

Bill Bijnsdorp: Hi Dave For the vertical element you could use an antenna from the back of a tv or portable radio. No need to cut wire, just extend as needed. The ground plane could be the metal screen from a fan' Bill ve3srh

Bill Bijnsdorp: What about a telescoping antenna from an old tv set Bill ve3srh

hi li: like the adult version of plastic cups and a string. all you need now is a coffee can emitter. 

Mark Ruhland: Very cool!!!

Andrew Polezhay: I wonder how to change the SWR if Bank of coffee will be slightly smaller:? 73! de UT1ZZ

721NorthernAlberta: Amazes me on how you whip an antenna. Good going Dave.

WD7N: I've made several "cantennas" over the years, The easiest way to solder the center conductor on a SO-239 is to tap it out of the connector then solder the wire in place. Once done just tap it back into place in the connector. That way you don't melt any of the insulating material around connector and have a better solder connection as well.

Camp Cossack: ROFL!! Love it! Thanks Dave, I'm stocking up on connectors, paint cans and copper wire.

Electronoob: Geeking Out: brilliant :D

Bryan Miller: Bob Heil had it right in one of his books he said "every thing that exists is because someone tried it"

wulff707: Yo the people that keep talking about Dave putting lead in his mouth, electrical solder now days are LEAD-FREE! Just like paints. Also. someone said a large can wasn't the best for 2 meter, he is simply using the can as a ground plane (artificial ground!) you could use a 55 gallon drum if you wanted, he isn't using the can as a reflector by putting the element inside the can. Please people read before posting.

Vasile Pop: Very neat! 73 de VA6POP

Matthew Curry: This is a very cool design for a 2 meter antenna!!!

TREE HUGGAH: now that is pretty cool.i put that one in my favorites list.great work sir. watch for a coffee can antenna in all the catalogs for the holidays,ya better get your patent together!!!! 73,KB3YJO

Jonathan Sawyer: I wouldn't hold leaded solder in my mouth. Who hasn't got that secret stash of "proper" solder?

N0rthwestRadio: This would be a great way to introduce the concept to others and what a great platform to do it with. After the experiment you have the delay lines to use to build a Quad or Yagi type design using the same principle. The next step would be set the cans in a three point triangle each having its own delay line to a control point. Using a switch setup to excite certain feed to change the patter without moving the cans. Am I being to hard on ya? Grin... Phasing is fun experimentation. Apply to HF!

Tianyi Xie: Dave you are wasting this coffee can. It can be made into a 2.4 GHZ cantenna.

purplemutantas: I just built this antenna today. It works better than my Ed Fong J pole! It's pretty amazing what a coffee can and coat hanger can do! We are going to be doing some simplex practice on our local new operator/tech net. I may have to stick my coffee can up on my mast and see how that works out. Thanks for the video Dave. 73

Adam Dickson: you could always just solder the wire into a pl259 no need for a coffee can then easier for handheld use

Brian Shriver: Very cool project. I have to get an analyzer like that.

Spankbucket here to stay: cool idea....I'm going to give it a try!

purplemutantas: Simple. It's just a quarter wavelength element. So just calculate the wavelength at your chosen frequency and divide by 4. It's pretty simple stuff. Stuff you really aught to know before you start building antennas. Dave has a great video on dipoles. Check that out. It will give you some antenna fundamentals.

humaxf1: Nice project. Try a metal dustbin next. A tip to prevent breakout on the other side of a hole, get a scrap piece of timber on the opposite side and press against the force of the drill. You'll have a burr free finish.

TREE HUGGAH: BRAVO!!!! what a great project,you should patent that idea. 73,KB3AUM

Celso Lina Da Silva: Please could send me by e mail all measures of antenna metal pot. even that was not clear to me the measure. Email: Matrixtwo@msn.com

slamdvw: A safety tip: put a wire nut in the end of the radiator to eliminate the sharp point... and make it easier to see.

FannyAckin: does it work better with decaff

Joel Tan: For instances, if i am using a 4 copper wire as a base support for the 4 holes in the SO239 socket, what is the differences of using a 4 copper wire or a coffee can as a base support? Does the base height matters if i am constructing a 433MHz antenna. I was about to ask about the same question as the comment below.

OneStudPuppy: Awesome. This project is one of the reasons I became a ham. I like to try off the walk ideas and share the try and see idea. 73

MarvinMcGill: What kind of bit did you call that gold 1? Will it work for making a hole in the top of the van roof for a MNO mount?

Bass Assassin: Would you email me what I need to make this I want to build one fdny3forty3@gmail.com

Nolan Rollo: I didn't see anyone comment on this about the filing but the first day I used a metal file in front of an electrician I got yelled at because I pulled the file back against the metal. If you push (cut) and lift up (instead of sliding back up on the edge of the metal) you won't flatten down the teeth on the file. :)

purplemutantas: I just had another thought about cans. Coffee cans are number 10 cans. Other things come in number 10 cans. Tomatoes for example.
Rating:
2 Meter Coffee Can Antenna 4.7 out of 5

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2 Meter Coffee Can Antenna