Yeckel] recently put the finishing touches on an ambitious implementation of a simple D-STAR (Digital Smart Technologies for Amateur Radio) transceiver using some very accessible and affordable ...

A battery-powered radio is great to have on hand in the event of a power outage or other emergency, but an even better option is an emergency weather radio. This one uses a solar panel, hand crank, ...

Did the Bluetti Pioneer Na keep working in the freezing cold when most batteries would give up? I tested it to find out.

Abstract: In this letter, we propose multi-antenna based spectrum sensing methods for cognitive radios (CRs) using the generalized likelihood ratio test (GLRT) paradigm. The proposed methods utilize ...

Abstract: Reconfigurable antennas (RAs) have been a pivotal technology due to their ability to dynamically adjust parameters. This paper underscores the critical need for the radio channel ...