MicroMPX SFN

Single Frequency Networks (SFNs) are multiple transmitters broadcasting on the same frequency, all perfectly timed so your listeners never hear a dropout or ugly interference.

Sounds brilliant, doesn’t it? It is. But traditionally, running an SFN for FM has been a bit of a nightmare. You’d need lots of expensive hardware to keep everything locked in step. Even then, aligning audio, pilot tones, and RDS across different sites was a tricky game.

This is exactly where MicroMPX SFN steps in to make it easy.

So, what is MicroMPX SFN?

MicroMPX SFN is a clever technology that sends the entire FM composite signal (the MPX signal) — that’s your stereo, RDS, pilot tones, the works — over standard IP networks. Not just the audio, but all the critical timing and phase data that make sure your transmitters stay perfectly in sync.

It also handles the crucial bit for SFNs: GPS precise delay control with NMEA Data. This means you can tweak each site to millisecond accuracy, making sure all transmitters work together as one giant, smooth network on the same frequency.

Aqua Broadcast leads with MicroMPX SFN in the Cobalt range and is the first manufacturer to implement this as an option in the Cobalt Transmitter range.

At Aqua Broadcast, we believe technology should make your life simpler, not give you more headaches. That’s why our Cobalt FM transmitters come with MicroMPX SFN functionality built right in.

With Cobalt, you can:

• Feed a MicroMPX SFN stream directly over IP into the transmitter.
• Get automatic alignment of pilot, RDS, and stereo, keeping all your transmitters locked together.
• Adjust timing delays easily in the transmitter’s interface, to get perfect overlap zones.
• Save rack space, cut costs, and massively reduce the risk of sync issues
• This isn’t just clever. It’s the future of FM, happening right now.

Because your listeners deserve to travel from town to town without hearing your signal stutter or clash with itself. Because you shouldn’t have to fork out for piles of gear just to keep your FM SFN on track. And honestly — because your engineers have better things to do than chase microseconds all day.

With MicroMPX SFN inside the Aqua Broadcast Cobalt, you’re ready to roll out solid SFNs, easily, affordably, and with total confidence.