TECHNICAL Category

Content related to the activities of the RRRA Technical Committee and the equipment/systems they maintain, along with technical topics of general interest.

10 Coaxial Cable Myths Exposed

Are COAX cables really worth the hype? In this video, we’re going to debunk the myths and misconceptions surrounding COAX cables in just a few minutes! From their supposed “low loss” capabilities to their alleged “reliability”, we’re putting COAX cables to the test and separating fact from fiction. Whether you’re a new ham, an experienced operator or just someone who wants to know the truth about COAX cables, this video is for you! So, sit back, relax, and let’s get ready to debunk some COAX cable myths!

AST SpaceMobile Lays Claim to 430-440 MHz and 902-928 MHz...

for Commercial Satellite Communications in FCC Filing.

This may well be the most significant challenge to date to one of Amateur Radio’s most popular bands. It’s particularly significant for Amateur Radio space communications, as that usage directly competes with this company’s use case — satellite communications.

In DA 25-532, released 2025-06-20, the FCC Space Bureau has accepted a filing from AST SpaceMobile to conduct Telemetry, Tracking, and Command (TT&C) in both space-to-Earth and Earth-to-space communications modes in 430–440 MHz. In the document, AST SpaceMobile is referenced as AST & Science, LLC (AST).