A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas.
Easy Slim Jim/J-Pole Dual Band Antenna Build for 2m/70cm.
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Thanks to Mike (M0MSN) for this "Slim Jim"/"J-Pole" antenna idea.
This dual band (2m/70cm) antenna is easy to build and will give you a bit more gain than a 1/4 vertical whip.
This variant of the popular "Slim Jim"/"J-Pole" antenna is suitable for both home and field use.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cid6yycOfqA.
Here are some comments from Mike (M0MSN):
HAM RADIO: Easy SlimJim / J-Pole Dual band Antenna Build for 2m/70cm, Thanks to a book I purchased many moons ago, I have found the perfect way to pass a rainy day. make a 2M / 70cm Slim Jim or J-Pole. Not just the standard J-Pole but one that uses a decoupling stub so that you get the maximum power on both bands..........
You need:
1.5M of 300 Ohm ladder line
15cm /6 inches of RG176 or RG316 coax
and that's it, Bobs your uncle.
Many thanks
Mike - M0MSN
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Aloha es 73 de Russ (KH6JRM).