Community Supported Radio Resources.
Overview In the world of emergency communications, redundancy is king. While we often rely on the robust Southwest Community Radio System (SWCRS) repeater network for voice communication, there is a powerful tool in our “comms toolbox” that often goes overlooked:… Read More »Digital Resilience in the Desert: The SWCRS Winlink Net
This year’s Winter Field Day on January 24–25 was a great experience for SWCRS Snipe Club; our contesting branch that’s slowly been gaining traction over the past couple years. For those who haven’t been involved before, Winter Field Day is… Read More »Winter Field Day with SWCRS Snipe Club
Summary We traveled to the Guthrie Peak site today, skirting the trailing edge of a winter storm, leaving Tucson at around 4:00am. The timing made for a memorable drive, with spectacular scenery on the way up – low clouds, fresh… Read More »Guthrie 600 Repeater: Winter Site Visit, Repairs, and Programming Updates
Operators Needed! March 27 – April 3, 2026Supporting a 300-Mile Foot Race from Globe to Patagonia The Arizona Monster 300 returns March 27 through April 3, 2026, challenging runners to complete a 300-mile continuous foot race in Arizona’s back-country from… Read More »Call for Radio Operators: Arizona Monster 300
[Initial Report, Outage 1/11/2026] The following repeaters are currently off network; to our knowledge they are operating normally in standalone mode Members are advised to use the Lemmon 650 or Heliograph 700 repeaters as alternatives. [Update, Partially Resolved 1/16/2026] Operation… Read More »Resolved: Tucson 600 & Guthrie 600 Network Issues
Dear Members, We want to alert you to a recent phishing attempt targeting the Southwest Community Radio System. Some of you may have received an email appearing to come from “Southwest Community Radio System” but sent from a random email… Read More »Security Notice – Phishing Email Alert
We are happy to announce the successful deployment of a new amateur radio repeater on Mt. Lemmon. The new repeater hardware was sponsored and installed by SWCRS, and is part of the TRASH Radio Network, where it is fully managed… Read More »TRASH Radio Online on Lemmon
We have a brand-new repeater located within the Tucson Mountains online with excellent coverage of most of the Tucson Metro area; please see information on the programming page – please note that this machine is in testing and is subject… Read More »Tucson 600 Online!
We’ve added a Yaesu 2-meter VHF repeater to the site on Mt. Lemmon; it is available on 146.680mhz with a negative offset. This one is in standalone digital mode to encourage local use; for more information on Yaesu Fusion see:… Read More »Yaesu C4FM Lemmon Repeater Online
Our Mission: To develop the capabilities of the General Mobile and Amateur Radio Services, and encourage a natural interest in radio communications with the communities we serve by providing infrastructure, educational opportunities, and community events.
Public Records: Public records for the Tucson GMRS Association (dba. “Southwest Community Radio System”) can be found here: Public Records & Documents