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DSMX® Technology

True Evolution

The Spektrum™ brand launched the 2.4GHz RC revolution. Since then millions of hobbyists the world over have come to embrace 2.4GHz technology as the way to race and fly. Spektrum leads the way yet again with DSMX technology—the world's first wideband, frequency-agile 2.4GHz signal protocol and the most advanced spread spectrum RC technology to date.

To find out if you qualify for the DSMX radio add-on program, click here.


A Solid Foundation: Wideband DSSS

The foundation DSMX is built on is the same foundation as DSM2™ - the superior on-channel interference resistance and coding gain of wideband DSSS. Compared to the wideband signal of a DSM2 or DSMX™ system, the narrow-band signal of other 2.4 transmitters is more likely to suffer crucial data loss in the event of on-channel interference. Think of wideband 2.4 as a river and narrow-band 2.4 as a stream. It takes much more interference to stop a river than it does to stop a stream.

The big reason wideband is so robust is coding gain. Essentially what this means is that the unique coding in a DSM2 or DSMX wideband signal allows it to be heard well above the noise of surrounding 2.4GHz signals without requiring any more power. In fact, a Spektrum wideband signal can achieve as much as 3X the range of its narrow-band competition using the same amount of power.

The 'X'-tra Benefit of Agility

What DSMX™ adds to the tried and true wideband technology of DSM2™ is the extra interference protection and faster reconnection times of frequency agility. But DSMX isn't just another frequency hopping system. It is wideband agile.

DSMX frequency shifts are coordinated using the most advanced FHSS algorithm ever seen in an RC application. Unlike other FHSS transmitters that all hop in the same fixed patterns, every DSMX transmitter has its own unique frequency shift pattern calculated using its GUID (Globally Unique Identifier). And each pattern uses just 23 channels in the 2.4GHz spectrum.

By adding the agility of unique frequency shifts to the superior interference resistance of a wideband signal, and limiting those shifts to a smaller portion of the 2.4 band, DSMX transmitters provide on-channel interference protection that is simply second to none. The result is quicker reconnection times and superb response in the noisiest 2.4GHz environment.


3D Spread Spectrum

In addition to its wideband DSSS foundation and smarter FHSS protocol, DSMX™ users will enjoy a third dimension of signal protection that DSM2™ users have always enjoyed. Only Spektrum full-range receivers offer the patented advantage of MultiLink™ dual-path redundancy. When combined with the superior wideband power and frequency agility of DSMX, MultiLink gives RC pilots the fastest, most reliable 2.4 RC technology available in any signal environment.

To learn more about the advantages of MultiLink, click here.


Frequently Asked Questions

Just How Good is DSMX?

In multiple tests, 100 DSMX™ systems were operated simultaneously for extended periods of time. During these tests not a single case of RF link loss, latency increase or control degradation was experienced or recorded.

IS DSM2 and DSMX equipment compatible?

Yes. DSM2 transmitters are forward compatible with DSMX receivers, and DSMX transmitters are backward compatible with DSM2 receivers. And because DSM2 and DSMX share the same wideband DSSS foundation, all Spektrum users will enjoy superior range, speed and precision whether they're using DSM2 equipment, DSMX equipment or a combination of both.

Are DSM2 transmitters eligible for a DSMX add-on?

Yes, but DSM2 users who rarely, if ever, fly in big events or other "noisy" 2.4GHz environments may find the DSM2 equipment they have now is all they will ever need. The difference DSMX makes is only apparent when hundreds of 2.4GHz systems are in use at once. To see if your transmitter is eligible for the DSMX add-on, please visit horizonhobby.com for more details.

Does DSMX have ModelMatch™ and SERVOSYNC™ TECHNOLOGY?

Yes. DSMX will provide users with these and the many other exclusive Spektrum advantages they already enjoy with DSM2.