ham-radio-news

From the trade magazines: Rotor teardown, SDR course, power transfer

January 06, 2019 Dan KB6NU

Here are three more trade magazine articles that amateur radio operators should find interesting and useful…..Dan

Ham Antenna Rotator: The Teardown

The Hy-Gain rotor is a very sturdy design that has passed the test of time. Paul Rako takes a look inside to see what makes it endure.

The What, Why, How, and When of Software Defined Radio

Software defined radio (SDR) has typically been confined to military or aerospace applications, but Moore’s Law and advanced RF conversion and signal-processing hardware have combined to move SDR downstream to private networks, commercial drones, industrial IoT, and first responders [and even ham radio!].

This 3-part course, from 3 of the world’s leading experts, will provide an introduction to the fundamentals of SDR, some of the latest enabling technologies, some practical design examples to show the state of the art of SDR design and implementation. It will finish with a moderated open panel to address attendee questions and the future of SDR.


Power transfer and phase basics

Our own Bob Witte, K0NR, explains why you need to match a load to a source to get the maximum power transfer. I never knew it was called Jacobi’s Law!

The post From the trade magazines: Rotor teardown, SDR course, power transfer appeared first on KB6NU's Ham Radio Blog.