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Power and SWR Meter


This update replaces the teensy ++ 2.0 microcontroller with the much more powerful teensy 3.2 32 bit arm cortex-m4 running at 96 mhz
post 07 Feb 2024
Power and SWR Meter

Swr Meter Links

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USB/Serial SWR Meter
This project is mainly about software. For computing hardware, I will start with the Arduino UNO R3, and much of the work will be done in its firmware

Tuning Your Antenna
This handy device can give you a lot of information about an antenna. It can tell you if it's too long or too short. It can tell you an antenna's resonant frequency

The Resistive SWR Bridge
The resistive SWR bridge is highly recommended for both beginners and experienced constructors


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

Build a Three-Way Antenna Switch and Display

Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube