System that measures the VSWR and power level of transmitter signals in the HF bands (3.5 MHz to 30 MHz) with better than 5% accuracy for VSWRs below 3.0. For a detailed explanation of its operation, see its project page.
Gerbers were generated for manufacture by JLCPCB.
Credit: thanks to G3TXQ for sharing his SWR meter design and schematic diagram. Thanks to N7DDC for sharing the design of the ATU-100 antenna tuner. And to W2AEW for his excellent explanation of how a directional coupler works. IN3OTD has an online calculator for synthesizing arbitrary resistor values from standard value. All these were tremendously helpful as I designed this VSWR meter.
