Optimize Your Air Chain
28 Writer
Julien Libeau Business Development Manager, U.S. & Canada, WorldCast Group
Optimizing the FM air chain through end-to-end visibility The individual links in the chain aren’t separate projects, they constitute one system
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he FM broadcast chain is rarely a single product or a single decision. It’s a sequence of connected systems that runs from the studio output through program transport, FM transmission, off-air monitoring and the supervision layer that ties everything together. Each link has its own performance characteristics, its own failure modes and its own way of generating data that can either help or confuse the engineering team. Optimizing this chain isn’t only about audio quality. It’s about reducing complexity, limiting points of failure, validating what is actually broadcast and giving both
radioworld.com | May 2026
engineers and management a clear view of how the network is performing. Strong FM chains usually share four practical qualities: reliable transport, simplified transmitter sites, real off-air validation and centralized supervision. Start with reliable program transport — A solid FM chain starts with this between the studio and the transmitter site. It is where many continuity and quality issues appear, and where good engineering decisions pay off the most. Most broadcasters today rely on audio over IP or MPX over IP for studio-to-transmitter links. Both approaches