Radio systems and receivers: choosing a reliable control link
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
DX3 Smart 3-Channel Transmitter with SR315 Receiver
Prices are intentionally not displayed on the site.
Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
DX3 Smart 3-Channel Transmitter with SR315 Receiver is a Spektrum product intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum transmitter and radio-control range.
- Intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics.
- Check compatibility with DSMR, Spektrum Smart equipment and the exact model requirements before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
- Spektrum Smart compatibility is highlighted where relevant for batteries, chargers, ESCs or telemetry-aware systems.
- Protocol information is surfaced so customers can match the product to their Spektrum radio system.
- Spektrum Smart ESC and Battery telemetry ready
- Connect your mobile device wirelessly via Bluetooth to your transmitter
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPM2340
- Product Family: Spektrum transmitter and radio-control range
- Application: Surface
- Compatibility Focus: Check compatibility with DSMR, Spektrum Smart equipment and the exact model requirements before ordering.
- Spektrum Category: Radios / Surface / Transmitters
- Channels: 3
- Band: 2.4GHz
- Modulation: DSMR
- Telemetry: Telemetry Compatible
- Receiver: Included
- Audio: No
- Bind Method: Bind Button
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
How to bind an RC transmitter and receiver
A practical binding guide for matching protocol, bind mode, receiver power, model memory, control checks and common binding mistakes.
How to set failsafe correctly on an RC aircraft
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
How to set Dual Rates and Expo on an RC transmitter
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
How to perform the first test flight of an RC aircraft
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPM2340 |
| Spektrum Category | Radios / Surface / Transmitters |
| Product Family | Spektrum transmitter and radio-control range |
| Application | Surface |
| Compatibility Focus | Check compatibility with DSMR, Spektrum Smart equipment and the exact model requirements before ordering. |
| Programmable | No |
| Technology | Smart |
| Part Type | Electronics |
| Transmitter (Tx) Battery Type | 4 AA (sold separately) |
| Band | 2.4GHz |
| Bind Method | Bind Button |
| Channels | 3 |
| Modulation | DSMR |
| Range | Full |
| Telemetry | Telemetry Compatible |
| Receiver | Included |
| Audio | No |
| Color Screen | No |
| Completion Level | Transmitter with Receiver |
| Frame Rate | 11ms, 16.5ms |
| Left / Right Hand Operation | No |
| Operating System | No |
| WiFi | No |
| Touchscreen | No |
| Gimbal Type | Not Applicable |
| Serial Port | No |
Tags: Spektrum, SPM2340, Spektrum transmitter and radio-control range, Spektrum Catalog, Spektrum Smart Technology, Spektrum Transmitters, Spektrum Surface Transmitters, Spektrum Surface Electronics, RC-MODEL