MaxxCasting: Fixing FM Radio's Coverage Problem

FM coverage maps look bold and confident, but the actual audience listens six feet off the ground, weaving between buildings and hills where signals get chewed up. That’s where audio turns fluttery and listeners quietly tune away. And the old “just add a booster” fix can make things worse in the overlap zone.

MaxxCasting, built by GeoBroadcast Solutions with GatesAir hardware, is cellular network thinking applied to FM: multiple low-power directional booster nodes on the same frequency, engineered with terrain data and time-aligned so the handoff in your car is seamless. The stakes go beyond sound quality. If the Nielsen PPM can’t decode your signal, your listening doesn’t count, your ratings slip, and advertisers never pay for the audience you actually have.

I also cover the question engineers always ask: how EAS fits into a synchronized booster network, what changes with zonecasting, and why the NAB still has concerns about scaling it in the real world.