Diy Slim Jim Antenna. I looked around on the web for plans, many of which included the unuseful comment adjust feed point to minimize swr. Here are the plan i use for constructing and experimenting with slim jim antenna on 2 meter vhf amateur band.
Hanging the antenna from a tree presented several constraints such as a Wind the coil around a 4mm rod or the shank of a twist drill. Resources listed under slim jim antenna category belongs to antennas main collection, and get reviewed and rated by amateur radio operators.
(The Same Type Used For Tv Antenna Installations.) It Is Very Easy To Build And Does Not Take Days To Construct.
70mhz slim jim half wave vertical, built with 450ω feeder. It does not require any ground plane radials because it is an end fed half wave. How to support a roll up dual band slim jim antenna on a metal mast.
2M Copper Slim Jim Made From 1/2 Copper Pipe.
Find this pin and more on antenna 1 by kobus jonker. I started out with some fresh venison tallow and rendered it down and pulled the solid fried fat out leaving the rendered fat. Performs very well and can be used for rx and tx purposes.
The Calculator Will Get You Close (Or Spot On If You’re Lucky), But There Are So Many Variables.
It just works when i need it to. 2 meter slim jim antenna using 300 ohm twin lead this design is based on the standard slim jim antenna this 2 meter 300 ohm slim jim antenna is constructed from regular 300 ohm twinlead. You can use an antenna analyser to easily find if you are too long or short.
Wind The Coil Around A 4Mm Rod Or The Shank Of A Twist Drill.
Building the slim jim antenna out of copper tubing for vhf 2m fm. Here are the plan i use for constructing and experimenting with slim jim antenna on 2 meter vhf amateur band. I hung it from a ceiling hook in the corner of the room, and i've just left it there since.
>One Section 57 1/2 Inches.
The aerial element and the coil are made from a single piece of 1.5mm welding (brazing) rod, and the dimensions are given in figure. Build a roll up portable 2m (144mhz) slim jim antenna the slim jim antenna has a number of advantages over a helical or quarter wave: The slim jim is probably one of the cheapest and easiest antennas to make, and it’s a very handy one too.
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