Slim Jim Antenna Calculator - Design Your Antenna Online

By PD9JS

The Slim Jim Antenna Calculator is an online tool that helps hams design a Slim Jim antenna for any desired frequency. This extended version of the J-Pole antenna design does not require a ground plane and is perfect for mounting inside PVC piping. The calculator determines the dimensions of the antenna elements based on the input frequency. Suitable for both receiving and transmitting purposes, this antenna can be easily constructed using common household wiring. The tool provides metric and imperial measurements, along with visual representations of the antenna design for easy reference.

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Antennas/Slim Jim

The title of the main category is Slim Jim and it deals mainly with Find a comprehensive list of Slim Jim antenna projects for amateur radio enthusiasts. Learn how to build and optimize your own Slim Jim antenna for better performance.. The link to this resource has been on our site since Wednesday Jul 16 2025, and it has been followed 46 times. So far no one has rated it yet. Be the first to rate it!
Last updated: 2025-07-16

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