DX3.0 DSM 3-Channel Radio with SR300 - no Servo



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Spektrum's no-pins, no-interference, no-glitch DSM 2.4GHz technology ignited a revolution among high-end racers. Starting with RF modules, we made it possible to adapt existing pro-style transmitters to this breakthrough technology for dramatically improved performance.

With the Spektrum DX3.0, you'll have a 3-channel system loaded with great programming features combined with built-in, ultra-fast DSM modulation. It couldn't be easier.

You'll never have to select - or wait for - a channel again. Plus, glitching from motors and metal-to-metal "noise" will be a thing of the past.

In addition to DSM surface receivers, the DX3.0 is now compatible with the Spektrum marine receiver (MR3000) for use in boating applications and DSM2 surface receivers.  If you're unsure of the compatibility of your radio, look for the marine and DSM2 logo on the back of your transmitter.

Always purchase products from a Horizon Hobby, Inc. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM2 or Spektrum.

Attention: Horizon Hobby has confirmed that all Spektrum Products being sold by KoKo Technology are counterfeit.  We consider it a danger to use these products, waive all liability and will not support any warranty or service in regards to them.


  • Now compatible with the MR3000 3-channel marine receiver and DSM2 surface receivers, in addition to DSM surface receivers.
  • Built-in 2.4GHz DSM technology
  • 3-channel DSM receiver (1)
  • Easy-to-read LCD graphics display
  • Now features ModelMatch model recognition technology.
  • 4-model memory
  • 3-Character Model Naming
  • Electronic digital trim levers for throttle and steering
  • Throttle deadband
  • Normal and Fast modes
  • Servo endpoint adjustments
  • Sub Trims
  • Servo Reversing
  • Steering Dual Rate
  • Lap Timer
  • ModelMatch Model Recognition


# of Channels:
DSM (Compatible with Marine and DSM2 surface receivers too)
SR300 3-channel DSM sport surface receiver
Model Memory:
Transmitter (Tx) Battery Type:
8 AA Alkaline (not included)

Parts & Accessories

Included   (See All)

  • SR300 3-Channel DSM Sport Surface Receiver

Parts Listing   (See All)

  • Transmitter Dry Cell Battery Holder: XR2/XR3/XS3

  • Replacement Antenna: DX2.0/DX3.0

  • Battery Door: DX2.0 and DX3.0

Optional Accessories   (See All)

  • SR3001 DSM 3-Channel Pro Series Receiver: Surface

  • SR3500 DSM 3-Ch Micro Racing Receiver: Surface

  • On-Board Module Only

  • Telemetry Lap Timing Trigger

Used In...   (See All)

The "DX3.0 DSM 3-Channel Radio with SR300 - no Servo" is used in the following:





Technical Notes

The DX3.0 is compatible with the Spektrum telemetry system. An SR3300T receiver (SPMSR3300T) or an SR3001 receiver (SPM1205) and telemetry module (SPM1325), plus the hand held unit (SPM1320) and the appropriate sensors are required. Please see the optional accessories for a complete listing of telemetry components.