Built around frequency-agile DSMR technology, the SR515 receiver delivers superb range and response, especially in noisy RF environments where a solid 2.4GHz link is crucial. Not only is the 2.4ghz link solid, this model also implements our lightning fast 5.5ms frame rate, providing a quicker , low-latency connection for the pro-level enthusiast.
The SR515 also features a new, modern case design that is small, streamlined, and ready for nearly any RC application. The case also features added antenna support and an integrated antenna tube slot for seamlessly easy installation.
No more bind plugs! Instead, an easy-to-use bind button is used to enter the bind mode. Plus, while binding, you have the choice of SmartSafeT as well as preset 'Gas' failsafe options. All combined, Spektrum gives drivers more features in an affordable receiver, so you can drive with confidence..
Features
- Streamlined design in a compact and lightweight hard-case
- Bind-button eliminates the need for a bind plug
- SmartSafeT Failsafe and Preset "Gas Mode" Failsafe options
- Outstanding range and 5.5ms capable DSMR technology
- Ideal for nearly any surface RC model
Compact Design
The SR515 is capable of being placed in very small and tight builds. We eliminated un-needed angles to streamline the receiver casing and to make installation easier than ever before. The case also features added antenna support and an integrated antenna tube slot for those custom models that do not provide a route for the antenna installation..
Bind Button
New technology eliminates the need for the old bind plug. With The SR515 a top-located button makes binding more convenient than ever while two bind-sequence options make the process simpler by allowing you to bind while powering up or after receiver power is connected.
Gas Mode Failsafe
lt into The SR515 is our newest failsafe mode for surface applications, Gas Mode Failsafe. Easyily selectable during binding, Gas Mode allows users to preset the failsafe position of all available channels. Additionally drivers can utilize SmartSafe T failsafe which drops throttle to the lowest point and holds the last known command on the rest of the available channels.
- Model Number: P-SPMSR515
- Product Type: Surface Receiver
- Channels: 5
- Radio Protocol: Spektrum DSMR/DSM2 2.4GHz and SLT FHSS 2.4GHz (Dual Protocol)
- Frequency Band: 2.4GHz
- Modulation: DSMR (Frequency-Agile)
- Frame Rate: 5.5ms capable
- Bind Method: Bind Button
- Input Voltage: 3.5-9.6V
- Antenna Length: 9 inches (229mm)
- Product Length: 1.28 inches (32.7mm)
- Product Width: 0.84 inches (21.4mm)
- Product Height: 0.53 inches (13.6mm)
- Product Weight: 0.21 ounces (6.0g)
- Receiver Ports: 0
- Data Port: No
- Serial Out: None
- Failsafe Options: SmartSafe Failsafe and Preset Gas Mode Failsafe
- Telemetry: Smart Technology Ready (supports Spektrum Smart batteries and ESCs)
- Integrated Variometer: No
- Water-Resistant: No
- Case Design: Compact, lightweight hard-case with streamlined design
- Antenna Support: Integrated antenna support with antenna tube slot
- Programming: Forward Programming - No; Programmable - No
- Range: Full
Overview
The Spektrum SR515 DSMR 5-Channel Sport Receiver represents a significant advancement in RC surface receiver technology, designed specifically for drivers who demand reliability, range, and responsive control in competitive and recreational settings alike. Built around cutting-edge frequency-agile DSMR technology, this receiver delivers exceptional performance in noisy RF environments where a solid 2.4GHz link is absolutely critical for maintaining control of your RC car, truck, or buggy. Whether you're a seasoned RC enthusiast in the UK looking for a premium receiver upgrade or a serious competitor seeking professional-grade electronics for your vehicle, the SR515 provides the features and performance you need to drive with complete confidence.
The SR515 is engineered to offer superb range and response characteristics that make it ideal for nearly any surface RC model, from high-speed buggies to precision crawlers. This receiver stands out in the crowded market of RC electronics by combining modern engineering with practical, user-friendly features that eliminate common frustrations associated with older receiver technology. The streamlined, compact case design makes installation straightforward even in tight builds, whilst the integrated antenna support and antenna tube slot provide seamless integration into custom models. Unlike older receivers that required fiddly bind plugs, the SR515 uses an intuitive bind button that makes the binding process faster and more convenient than ever before.
What truly separates the SR515 from other receivers on the market is its lightning-fast 5.5ms frame rate capability, which provides quicker, low-latency connection for the pro-level enthusiast who refuses to compromise on responsiveness. Combined with Spektrum's renowned reliability and customer support, plus cutting-edge failsafe options and Smart Technology readiness, the SR515 is the intelligent choice for drivers serious about their RC experience. At RC Model Shop, we're proud to stock this exceptional receiver as part of our comprehensive range of authorised Spektrum products for the UK RC community.
Key Features
- 5.5ms Frame Rate Capability — This lightning-fast response time delivers quicker, low-latency connection compared to standard receivers, providing pro-level enthusiasts with the immediate control response needed for competitive driving and precision manoeuvres.
- Frequency-Agile DSMR Technology — Built on advanced DSMR protocol technology, the SR515 delivers superb range and outstanding signal stability, especially in noisy RF environments where maintaining a solid 2.4GHz connection is absolutely crucial for reliable control.
- Bind Button Design — The new bind button eliminates the need for traditional bind plugs, making binding more convenient than ever with two simple bind-sequence options that allow you to bind whilst powering up or after receiver power is connected.
- SmartSafe™ Failsafe System — This intelligent failsafe technology automatically drops throttle to the lowest point and holds the last known command on remaining channels, ensuring your vehicle comes to a safe stop if signal is lost during operation.
- Gas Mode Failsafe Option — An innovative preset failsafe mode specifically designed for surface applications, allowing users to configure the failsafe position of all available channels individually during the binding process for maximum control customisation.
- Compact and Streamlined Case Design — The modern hard-case features a streamlined, lightweight construction that eliminates unnecessary angles, making installation easier than ever whilst enabling use in very small and tight builds where space is at a premium.
- Integrated Antenna Support — The receiver includes added antenna support and an integrated antenna tube slot, providing seamless installation even in custom models that don't offer dedicated antenna routing.
- Smart Technology Ready — The SR515 comes pre-configured to support Spektrum Smart batteries and Smart ESCs, ensuring all your vehicle electronics work together seamlessly for maximum efficiency, responsiveness, and system awareness.
- 5 Channels of Control — With five channels available, the SR515 provides ample control capacity for complex surface models including throttle, steering, and up to three additional functions such as auxiliary channels for switches, variable speed controllers, or specialised equipment.
- Dual Protocol Support — The SR515 supports both the Spektrum DSMR/DSM2 2.4GHz protocol and SLT FHSS 2.4GHz protocol, providing flexibility and compatibility with a wide range of Spektrum transmitters.
Technical Performance
The Spektrum SR515 is engineered to the highest standards of RC electronics manufacturing, delivering consistent, reliable performance in demanding conditions where your control system must never let you down. The receiver operates across the full 2.4GHz frequency band, utilising frequency-agile DSMR technology that actively avoids interference and maintains lock even in electrically noisy environments where other receivers might struggle. With an exceptionally fast 5.5ms frame rate, the SR515 provides responsiveness that separates competitive drivers from recreational enthusiasts, translating your input commands to your vehicle's servos and ESC with minimal latency. This is particularly important when driving high-speed RC buggies, precision-engineered crawlers, or competition-spec race vehicles where even milliseconds of delay can impact your performance on track or course. The receiver's compact physical dimensions (1.28 inches in length, 0.84 inches in width, and 0.53 inches in height) combined with its featherweight 6.0-gram construction make it suitable for installation in space-constrained chassis designs without adding unnecessary mass to your vehicle. The robust hard-case construction protects the sensitive internal electronics from impact and vibration whilst the integrated antenna tube slot allows for clean, protected antenna routing. Operating voltage tolerance of 3.5-9.6V means the receiver works reliably with standard 2-cell LiPo batteries (7.4V nominal) through to higher-capacity packs used in larger models, with the voltage regulation system maintaining stable performance across the entire operating range. The receiver's outstanding range capability, combined with the bind button interface and dual failsafe options, represents a quantum leap forward in surface receiver technology, whilst the Smart Technology integration ensures your entire vehicle system remains coordinated and responsive throughout your driving session.
What's in the Box
- Spektrum SR515 DSMR 5-Channel Receiver
- 9-inch antenna
- Instruction manual
What You Need to Complete
- Spektrum DSMR or SLT-compatible 2.4GHz transmitter or radio system
- Receiver battery (compatible with 3.5-9.6V input voltage)
- Servo(s) appropriate for your specific RC model application
- Electronic Speed Controller (ESC) compatible with your motor and battery configuration
- Motor appropriate for your RC vehicle type and driving style
Frequently Asked Questions
- Is the Spektrum SR515 suitable for beginners in UK RC hobby? — Yes, the SR515 is an excellent choice for both beginners and experienced drivers. The bind button interface is simpler and more intuitive than older plug-based binding systems, the SmartSafe failsafe provides peace of mind for new drivers, and the responsive 5.5ms frame rate actually helps newer drivers improve their control skills by providing immediate feedback to their inputs. If you're purchasing your first RC car in the UK or upgrading from older receiver technology, the SR515 represents outstanding value and ease of use.
- What voltage battery does the SR515 need and which types are compatible? — The Spektrum SR515 accepts input voltages from 3.5V to 9.6V, making it compatible with standard 2-cell LiPo receiver batteries (7.4V nominal), 2-cell LiFe batteries, and other conventional RC battery types used in surface models throughout the UK. Most drivers use dedicated 2S LiPo receiver packs (typically 1000-2200mAh) which provide excellent runtime and recharging reliability. Always ensure your receiver battery matches your specific vehicle's power requirements.
- How does the SR515 compare to other Spektrum surface receivers like the SR315 and SR215? — The SR515 is the premium model in Spektrum's surface receiver lineup, offering five channels compared to the SR315's three channels, providing additional control capability for complex models requiring multiple auxiliary functions. Whilst all three models share the same modern bind button design, SmartSafe failsafe technology, and frequency-agile DSMR performance, the SR515's extra two channels make it ideal for more sophisticated RC applications where you need control over multiple systems simultaneously. The SR315 remains an excellent choice for simpler models requiring only basic steering and throttle control, whilst the SR515 suits drivers who demand maximum capability and control flexibility.
- What does DSMR technology actually mean for my RC car's performance? — DSMR stands for Spektrum's proprietary Digital Spectrum Modulation Remote protocol, which uses frequency-agile transmission across the full 2.4GHz frequency band. This means the receiver constantly monitors RF conditions and automatically shifts frequencies to avoid interference, ensuring a rock-solid connection even when other wireless devices (WiFi, mobile networks, etc.) are operating nearby. The technology delivers superior range compared to older 72MHz receivers and provides the fast 5.5ms response rate that competitive drivers demand.
- Can I use the SR515 with different Spektrum transmitters? — The SR515 supports both DSMR and SLT FHSS 2.4GHz protocols, meaning it's compatible with a wide range of Spektrum surface radio transmitters including modern DX systems and surface-specific radios. During binding, you select which protocol to use based on your transmitter. Check your specific transmitter model to confirm DSMR or SLT compatibility before purchasing.
- What's the difference between SmartSafe and Gas Mode failsafe options? — SmartSafe failsafe automatically reduces throttle to minimum and holds all other channels at their last known position, providing a safe, predictable stop if signal is lost. Gas Mode failsafe, designed specifically for surface vehicles, allows you to preset custom failsafe positions for all five channels during binding, giving you precise control over exactly where each control input goes in an emergency. Gas Mode is typically preferred by experienced drivers who want complete customisation, whilst SmartSafe suits drivers who prefer simplicity.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Spektrum SR515 DSMR 5 Ch Sport Receiver today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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