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SR315 DSMR 3-Channel Sport Receiver

SR315 DSMR 3-Channel Sport Receiver

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MR3000 Marine 2.4GHz 3-Channel Receiver MR3000 Marine 2.4GHz 3-Channel Receiver MR3000 Marine 2.4GHz 3-Channel Receiver MR3000 Marine 2.4GHz 3-Channel Receiver MR3000 Marine 2.4GHz 3-Channel Receiver
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Key Features

  • 3-channel Marine-specific receiver
  • Dual outputs on steering and throttle
  • Water resistant enclosure
  • Dual switching feeder antennas
  • Preset Failsafe system
  • QuickConnect

Video Overview


Leave it to the folks who have pioneered more ways to use 2.4GHz RC than anyone else to develop the ideal solution for boat modelers. The result of years of research and testing, Spektrum’s 3-channel MR3000 Marine 2.4GHz receiver uses a unique signal protocol built into new DX3S transmitters that has been optimized specifically for marine use.

Features that can’t be found in any other receiver make Spektrum’s MR3000 the perfect choice for RC boating enthusiasts. Specifically designed for boating applications, it offers 3 channels – throttle, rudder and an auxiliary channel that can be utilized for a variety of applications, including mixture control on nitro boats and throttle kill on gas boats. The MR3000’s water-resistant case protects its circuitry from water and prevents corrosion, while its compact design allows for simple, clean installation in most applications.

The MR3000 is compatible with Spektrum surface transmitters featuring the marine logo. If your transmitter has the Marine logo (located on the back side of the transmitter), then it is compatible with the MR3000.  The MR3000 is also compatible with Spektrum and JR® DSM2™/DSMX aircraft radios.

Compatible Surface Transmitters: the new DX3S (SPM3140), DX2S (SPM2120), DX3E (SPM3160), the new DX2.0 (SPM20220), and the new DX3.0 (SPM20320).  Earlier versions of the DX3S, DX2.0, and DX3.0 are not compatible with this receiver.  Please look for the Marine logo on the back of your transmitter and check the transmitter part number for compatibility.

Telemetry: None

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, DSMX 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.

Compatible Products

Spektrum MR3000 Marine 2.4GHz 3-Channel Receiver SPMMR3000 is compatible with PRB3250BD
Antenna Length: 14 and 8 in
Band: 2.4GHz
Channels: 3
Modulation: Marine
Voltage Range: 3.5–9.6V



What is the difference between single and dual conversion receivers?

Single conversion receivers have a single local oscillator circuit for demodulation. Dual conversion revceivers have a second circuit for greater image and interference rejection.

What is BEC?

BEC stands for Battery Eliminator Circuit. It takes 7.2v-8.4v commonly used for electric RC and regulates it to 5.0v which allows the receiver to operate properly without the need for a separate battery pack.

Can I plug more than 1 battery into my receiver?

Yes, 2 or more battery packs of the same voltage can be used with the same receiver.

Do I need to plug the battery into the battery port?

No, the battery can be connected to any unused channel.

Why is my receiver glitching when I run my engine?

After hard landings or crashes the receivers ceramic filter or tuning coil(s) can become vibration sensitive. Other sources of interference can be RF noise generated by bad bearings in the engine, electronic ignition systems, loose screws, or other metal to metal contact in your R/C application.

Product Support Tips

Product Support

Technical questions about this Spektrum product should be directed to Horizon Hobby's Product Support Department:

Horizon Hobby, LLC.
ATTN: Product Support

2904 Research Road
Champaign, IL 61822

To place a Horizon Hobby Support Inquiry please visit our Inquiry Form Support Phone:(877) 504-0233
Fax:(217) 355-1552

Sales Support

If you would like to purchase this product, please go to the Store Locator or contact the Horizon Hobby Consumer Sales Department:

Horizon Hobby, LLC.
ATTN: Consumer Sales

2904 Research Road
Champaign, IL 61822
Email: Sales Phone:(800) 338-4639
Fax:(217) 355-1552