Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band.
65,618
Published 2020-12-08
Here is the link to the antenna calculator I used. Be sure to scroll down a bit to see the diagram of the 70 MHz Slim Jim constructed with 450 Ohm Balanced Feeder. The build is the same, we're just changing lengths to make it for 146 MHz. I also changed the velocity factor to .9 m0ukd.com/calculators/slim-jim-and-j-pole-calculat…
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All Comments (20)
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Give a man an antenna, he plays radio for a day. Teach him how to make his own stuff, he annoys a spouse for life.
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I made my first one just last night, from odds and ends of ladder line and coax cable I picked up at the local swap meet yesterday afternoon. Resonant at 146 MHz. Hung it from my living room ceiling and my wife and I used it to get on the repeater that is about 40 miles away from us. Works great!
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This looks like a very fun, easy build. Thanks for the great video!
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Great explanation, Mike. Been licensed right a 50 years and am always happy to learn new skills.
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If I ever get the urge to DIY again this is at the top of my list. I gave up the real diy when I got hurt so, poo. Still love watching someone else do it. I used to be an inspector so, I like to watch. 🙂 Great easy to understand video.
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I appreciate the soldering skills. Good stuff!
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just got some ladder line this past weekend just for a project like this, then seen your video. Made it much easier in my mind. I am going to do a class with our new hams in the community and get them to make their own antennas (we have tested around 15 new hams in our area in about 6 months). I bought enough crimp connectors and ladder line for 10 or so of these. Thanks for the video and tuning instructions!
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Sweet, another K8MRD premier! Now I know when to schedule a fresh pot of coffee to be ready! ;)
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I have made many over my 55 plus years on the air , ( mainly HF ) One memorable one was a directional wire antenna that was used on WWII battleships that was flip flopped to the opposite direction by hand .
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Outstanding video! I have been using the N9TAX for years, but building your own is always better!
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Good demo on how to make
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I was recommended to make this as a newbie an hour or so ago, so that's the plan for tomorrow! Thank you 😊
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I bought a very similar (new to ham and didn't know they are that easy to build) and it works very well. I really enjoy your presentation style! Instant sub.
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I made one of those back in the 90's when I had my first Tech license. Things work great! Simple yet effective, cann't beat it.
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Great video ! I made one of these with the 450 ohm ladderline a few months ago, but added a small RF choke at the bottom by winding several turns of coax and taping it all together. Works really well and SWR is flat on 145.00
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Why buy when you can make it yourself, you also learn something. Best instruction video I have seen on these to date thus far.
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Great video, I'm making one tomorrow to toss on my balcony on a fishing rod. Thanks Mike!
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Just subbed. This antenna is the reason I sit on the porch and can hit a repeater 32 miles away in Clarkston, MI from Brighton, MI on my HT! 73 KD8SGP
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This was the first antenna I built. Seven years later it is still in the air working.
