The QROP Meter: A More Accurate SWR/Wattmeter for QRO and QRP

by Jason Hsu, AA0II
copyright 2003, 2008

NOTE: I am currently seeking an electrical/embedded/firmware engineering job that has a heavy emphasis on working with microcontrollers.

Enlarged photographs (click on these thumbnails)

Introduction
Design Overview
RF Directional Coupler
Power Supply
Rectification
LED Display (includes the microcontroller)

C Source Code

Assembly Language Source Code (NOTE: based on an older design)

Diode Matching
Construction
Variations
Other Links