Stay-at-home Ham Radio Project: Making a 2m dipole from scraps around the house 4/03/20
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- Опубликовано: 28 окт 2024
- Since Florida is now under a stay-at-home order effective today and I had the day off from work, I decided to stay around the house and do a little ham radio project. Using some scraps and things laying around the house, I put together a 2 meter dipole. Enjoy and stay safe, folks! 73. --Bob KK4DIV
/ bobplank
Music credits:
Autumn Sunset by Audionautix is licensed under a Creative Commons Attribution license (creativecommon...)
Artist: audionautix.com/
Acoustic Guitar 1 by Audionautix is licensed under a Creative Commons Attribution license (creativecommon...)
Artist: audionautix.com/
Camera equipment:
GoPro Hero 8 Black
Canon Vixia HF R800
Iconntechs 4K actioncam (similar to a gopro) for most video
Canon powershot elph 150is
Editing software:
Corel Videostudio X10 ultimate
My favorite radio equipment for outdoor portable ops or RaDAR:
Radio: Yaesu FT817nd
Tuner: LDG z817 auto tuner
Antennas: Chameleon F-Loop magnetic loop antenna (does not need a tuner)
End fed antenna with 9:1 unun (needs tuner)
MFJ 1899T telescoping whip antenna
Wolf River Coil Silver Bullet 1000 w/ buddipole long telescoping whip
Interface for Digital modes: SignaLink USB
Digital software: FLDigi and WSJT-x
Not only did you teach me a quick antenna project, but I learned that my garage looks like hell...
We all just watched Bob in his garage playing with his caulk! LOL! Cool project, Bob!
LOL!!
Just wanted to add that 2 meter FM is usually vertically polarized and SSB is usually horizontally polarized. Great project! 👍
Thank you I was wondering about the polarization.
Thank you I used your wire lengths and built a dipole and it worked! 🎉 my UAV 5R now listens to the local repeater very clearly.
Great video, I plan on making one to put in my spruce tree. HOA will never know.
OMG! Thank You For This Video, I Just Realised My HUGE Mistake In My Dipole Fishing Pole ANtenna In My Jard. Il Fix It Today Thanks To Your Video Mate !
Great project Bob. Thanks for posting it.
Home Brew Ham at it's best! Thanks Bob! 73
A good rule of thumb is to always trim in 1/8 " increments
Thank you Sir from Alsdorf /Germany JO30BV 13 CT609
Keep up the good work Bob ... I always get something from your videos ... 73 de n7ppf ☝
Wrap your feedline about 4-5 turns just below the connector on the antenna end. Tie it off with a couple of plastic cable ties or twine. Rescan. Bet the sweep is better.
Is there a way to make the antenna without the need for the coil? Does that have something to do with the shielding in the feed line still acting as part of the antenna versus the core which is blocked?
They put a little black diamond right on the tape measure for that.😁
Thanks a lot great job.
Nice job on the dipole!
Very nice, thanks
Good job Bob on using what is available in the "JUNK BOX" to create and working item to use =) Hang in there Bob and forgot about the Packet and APRS you have setup at home .... will have to set it up here at my new QTH =)
The pvc pipe will de tune the wires
Nice job using what you had around the house and turning it into something useful Bob. Let us know how it works out. 73!
Starting out with nothing, I really appreciated this! My understanding is that, being a balanced antenna, it has an impedance of 75 ohms, which ideally uses a 75 to 50 balun or something, but it will work ok as it is? Thanks!!!
Great info, learning a ton
Great video!
May I ask something sir? I am a completely newbie beginner...
Can we use tee BNC connector as center insulator?
You can use any type coax connector that you see fit 🙂
Welcome to the hobby!
From KB9HPM
No, as that would make both legs of the dipole connected to the center conductor of your coax.
Thanks!
You bet!
Bob, You need to account for the velocity factor of the PVC?
Explain that please...
Thanks for sharing. Hope to take technician's test next week at a local repeater club. And btw a 1" pvc pipe can be capped with 2liter lids
Glad you enjoyed it and good luck on your test!
@@BobPlank_KK4DIV thanks I feel confident on passing lol but nerves can always kick in. I've been studying for a month now and passed most practice tests.
Maybe alittle overkill lol
I have a portable SW radio (Tecsun PL660) which came with a plug in type external dipole antenna. QUESTION: Was the external antenna that came packaged with this receiver designed to receive every band that this radio can receive OR does this radio require separate dipole antennas with varying length wires in order to make use of the various radio transmission frequencies available? (Sorry... That was a mouthful)
Ok please excuse my lack of knowledge. I'm literally days into getting interested in ham radio. So I see so many different style of antennas all seeming to bring in different wave lengths etc. So what does one do to bring in all these frequency on one line coming into your transceiver. Do you put up multiple antennas and then run them all into a splitter of some sort. ?, Do you just keep switching feed lines etc.. please point me in the right direction
Bob all of your videos are just great. Really enjoy them all. N4URU
Thanks, David!
Hey my friend what sizes of wires ,, what gage , awg did you used for the proyect !!??🏍️
Doesn't it should to 300 and you divide your frequency by 300?
not 468? Or Its For Meters ?
300 is for meters not feet.
What size of tee are you using?
How high did you hang the dipole?
Bob, What are we doing with the pipe now?
I have made the 2 meter antenna with the so239 and 5 pieces of wire. I do like this style. I may just try it.
So, in your opinion: which would be the superior antenna 1/4 wave 2 meter ground plane ... OR ... the 2 meter dipole described in the video?
Depends on if the dipole is vertically or horizontally polarized. Vertical polarization would be close to the GP in performance but the GP would still be the better antenna. With the dipole horizontal the GP will out perform the dipole.
Great awesome info. Thanks. Km4vgo. 73. Hey u tubr Rangers, Hit the like button guys. It's more important than you think.
let us know how it works!
Did you make any contacts with it?
I use it regularly for local communication via simplex and through the repeaters. It works well.
Why not post a video of you test driving your antenna 🙂
Thanks for the video Bob. Did you re-sweep the antenna after putting it in the PVC? 73!
How’s the progress on the mustang?
Honestly, have not worked on it in a while. I go out and crank it every month or so just to keep the parts moving. One day, I'll get back on it.
What length PVC pipe did you cut, and did you consider the length of the PVC T when determining that length?
Nice work. Maybe have a go using Centimetres instead, it would be a lot easier!
how long should the lead line be ??
If you are talking about the coax feedline, I always try to have it as short as possible.
Yes the coax feed line, KC3-SPE
Why don't people care about feeding a balanced antenna with a balanced feed?
I was thinking the same thing. It should have a Balun I believe.
Great vid! Its nice to see a ham make stuff instead of pushing products with stupid faces as the click bate image.
6:10 we'll never know if his measurement was on the mark or not... :) PS: Wear safety goggles when drilling or soldering on projects.
3:57 well I want to work in metric system :(
So much easier to use meter. 142,5/Freq i MHz
all of that math just to tell us the length
God I feel sorry for Americans and their feet & inches!