Content in the TECHNICAL category

Content (e.g. blog posts, information pages, and files/links) about the activities of the RRRA Technical Committee and the equipment/systems they maintain, along with technical topics of general interest.

Sabin 10m Beacon Callsign Change

The 10M Propagation Beacon; located in Sabin, MN, and operating at 28.2865 Mhz with the call-sign of W0ILO; was deactivated on April 7, 2018.

A new 10M Propagation Beacon using the call-sign WB0BIN, operating on the same frequency and from the same location in Sabin, was activated on April 9, 2018, at 14:00 UTC.

Please send beacon reception reports to .

10M Beacon

About the Beacon Beacon Message Reception Reports About the Beacon Call-sign: W0ILO Operating frequency: 28286.5 KHz This beacon was deactivated on April 7, 2018.

Chasing Satellites

Ever wonder about amateur radio in space? Learn all about it here with this great presentation by Doug Tabor - N6UA explaining all about chasing satellites at the 2018 Winter Hamfest hosted by Northern Colorado Amateur Radio Club. 1

Introduction to Digital Signal Processing

Digital Signal Processing is central to the software-defined radios (SDR) and digital modes which are an increasingly important part of Amateur Radio.

Radio operators interested in beginning to learn about the mathematical underpinnings of the digital side of their hobby are encouraged to take advantage of the Introduction to Digital Signal Processing maintained by Tom O’Haver, Professor Emeritus, Department of Chemistry and Biochemistry University of Maryland at College Park, as a retirement project and an international community service.