FS-SR8

Overview

The FlySky FS-SR8 is a professional-grade 8-channel 2.4GHz receiver designed for serious RC enthusiasts who demand reliability and versatility in their control systems. Whether you're piloting an RC car, truck, boat or aircraft, this compact receiver delivers robust performance with advanced features typically found in much larger units. The FS-SR8 operates on the ANT protocol, FlySky's proven 2.4GHz spread-spectrum technology that ensures secure, interference-free communication between your transmitter and model. With dual antennas providing redundant signal paths, exceptional in-air range exceeding 1000 metres, and multiple data output formats, this receiver is the perfect choice for RC hobbyists in the UK who want professional performance in a lightweight, space-saving package.

Measuring just 44.8 × 26.6 × 11.3 millimetres and weighing only 10 grams, the FS-SR8 is incredibly compact, making it ideal for installation in confined spaces where size matters. This receiver is recognised as a legitimate choice for competitive RC racing, casual bashers, and everything in between. The wide input voltage range of 3.5 to 8.4 volts means it will work with a variety of battery types and configurations, from single-cell LiPo batteries through to multi-cell packs commonly used in RC cars and trucks. With support for PWM, PPM, i.BUS and s.BUS data output protocols, the FS-SR8 integrates seamlessly with virtually any modern RC control setup you might already own or be planning to build.

RC model shop customers benefit from the FS-SR8's online update capability, ensuring your receiver always has the latest firmware enhancements and improvements. The BVD (Battery Voltage Detection) function with a range of 0 to 70 volts provides real-time monitoring of your power supply, helping you manage battery health and prevent over-discharge during extended flying or driving sessions. This is a receiver built for serious hobbyists who understand the value of quality components and want equipment that will perform reliably in competitive and recreational settings alike.

Key Features

• 8-Channel PWM Control — With 8 independent PWM channels, you have complete control over your RC model's functions including steering, throttle, and up to 6 additional auxiliary channels for switches, lights, or specialised control functions, giving you the flexibility needed for complex RC setups.
• 2.4GHz ANT Protocol — FlySky's proven ANT protocol operates on the crowded 2.4GHz frequency band with advanced spread-spectrum technology that automatically hops across available channels to avoid interference, ensuring rock-solid connection even at busy RC flying fields or racing events.
• Dual Antenna Design — Two separate antennas provide redundant signal reception and exceptional range stability; if one antenna experiences signal degradation, the receiver automatically maintains connection through the other, a critical safety feature for any RC pilot or driver.
• Exceeds 1000 Metres In-Air Range — The combination of dual antennas, 2.4GHz technology and the ANT protocol delivers outstanding range performance, meaning you can operate your RC model at distances that would have been impossible with older 72MHz systems commonly used in older RC car setups.
• Multiple Data Output Formats — Support for PWM, PPM, i.BUS and s.BUS protocols means the FS-SR8 will work with virtually any modern speed controller, servo, or flight controller currently available in the UK RC market, future-proofing your investment in this receiver.
• RSSI Signal Monitoring — RSSI (Received Signal Strength Indicator) support allows your transmitter and telemetry systems to report real-time signal quality, helping you identify RF interference problems or optimal flying positions and giving you confidence in your model's connectivity.
• Battery Voltage Detection (BVD) — The built-in BVD function monitors your receiver battery voltage continuously across a 0 to 70 volt range, allowing your transmitter to alert you when power levels drop, preventing loss of control due to dead batteries and extending your RC model's operational lifespan.
• Wide Input Voltage Range — The 3.5 to 8.4 volt input specification accommodates single-cell LiPo batteries, dual-cell LiPo packs, and traditional NiMH receiver packs, giving you complete flexibility in powering your RC setup regardless of which battery technology you prefer.
• Compact, Lightweight Design — At just 10 grams and measuring 44.8 × 26.6 × 11.3 millimetres, the FS-SR8 fits easily into confined spaces found in modern RC cars, boats and aircraft, freeing up valuable payload capacity without sacrificing any control functionality or performance.
• Online Update Capability — FlySky provides regular firmware updates that add new features and improve performance; the online update function ensures your receiver always has the latest enhancements, keeping your equipment current without needing replacement hardware.
• Professional Certification — CE and FCC certification (FCC ID: 2A2UNSR800) confirms this receiver meets all international regulatory standards for RF emissions and safety, giving you assurance that you're purchasing legitimate, tested equipment that won't cause interference with other wireless systems.
• Extreme Temperature and Humidity Tolerance — Operating reliably between -10°C and +60°C with humidity limits of 20% to 95%, the FS-SR8 performs in British winter conditions, hot summer days, moisture-laden environments, and everything in between that the UK climate can throw at your RC models.

Technical Performance

The FS-SR8 represents modern receiver engineering at its finest, combining proven 2.4GHz technology with robust hardware design that prioritises reliability and ease of integration. The dual-antenna configuration employs sophisticated signal processing that automatically selects the strongest signal path, a feature that eliminates the dead zones and signal dropout issues that plagued earlier single-antenna receiver designs. The ANT protocol spreads your control signal across the entire 2.4GHz band using frequency-hopping techniques, meaning even in environments with heavy WiFi traffic or other wireless interference, your RC model maintains responsive control. The exceptional in-air range exceeding 1000 metres is achievable because the receiver combines dual antennas with low-noise amplification and optimised RF filtering, delivering performance that rivals receivers costing significantly more. The multiple data output options (PWM, PPM, i.BUS and s.BUS) are handled through high-speed microcontroller interfaces that ensure zero latency between signal reception and output transmission, critical for competitive RC racing where millisecond delays can cost races. The BVD function continuously monitors your receiver's power supply with precision voltage measurement, reporting status through telemetry channels so you always know your equipment's health status. The wide 3.5 to 8.4 volt input specification is achieved through regulated power conditioning that maintains stable operation even as battery voltage drops during use. The compact dimensions and 10-gram weight are possible thanks to surface-mount component assembly and optimised PCB layout that minimises size without compromising signal integrity or cooling performance. This is professional-grade receiver design that prioritises reliability, range, and real-world performance over marketing hype.

What's in the Box

• 1 × FlySky FS-SR8 8-Channel 2.4GHz Receiver

Frequently Asked Questions

• Is the FlySky FS-SR8 receiver compatible with my existing FlySky transmitter? — Yes, the FS-SR8 is fully compatible with all FlySky AFHDS3 transmitters and earlier AFHDS 2A models through firmware binding protocols. The receiver's online update capability ensures compatibility with the latest transmitter firmware, and binding is straightforward using standard FlySky procedures documented in the included manual.
• What is the actual operating range of the FS-SR8 in real-world conditions? — FlySky specifies greater than 1000 metres in-air range, achieved through the dual-antenna design and ANT protocol. Actual range depends on factors including antenna orientation, environmental interference, and transmitter power output, but users consistently report reliable control at several hundred metres in typical RC flying and driving conditions across the UK.
• Can I use the FS-SR8 with different brands of speed controllers and servos? — Absolutely. The FS-SR8's support for PWM, PPM, i.BUS and s.BUS output protocols means it will work with virtually any modern ESC, servo, or flight controller available in the UK market. Whether you're using Hobbywing electronics, Spektrum servos, or any other major brand, the FS-SR8 will integrate seamlessly through one of its supported protocols.
• What voltage battery should I use to power the FS-SR8? — The receiver accepts input voltages between 3.5 and 8.4 volts, which covers single-cell LiPo batteries (nominal 3.7V), dual-cell LiPo packs (nominal 7.4V), and traditional four-cell NiMH receiver packs (nominal 4.8V nominal). The built-in BVD function will monitor voltage and alert your transmitter when battery levels drop below safe operating thresholds.
• Is the FS-SR8 suitable for beginners setting up their first RC car or aircraft? — Yes, the FS-SR8 is an excellent choice for beginners because it offers professional reliability and features without requiring complex setup procedures. The receiver binds easily to any FlySky transmitter, supports the most common output protocols, and the online manual provides clear installation guidance. The compact size makes it easy to install in first-generation RC models.
• How does the RSSI feature benefit my RC flying or driving? — RSSI (Received Signal Strength Indicator) continuously measures the strength of the signal from your transmitter to the receiver; this data can be displayed on your transmitter's screen or logged by a telemetry system, allowing you to identify areas of weak signal coverage, troubleshoot interference problems, and maintain awareness of connection quality throughout your session.
• What does the BVD function do and why does it matter? — BVD (Battery Voltage Detection) continuously monitors your receiver's power supply voltage across a 0 to 70 volt range and reports this information to your transmitter through the telemetry system. This alerts you when battery voltage drops below safe operating levels, preventing sudden loss of control due to dead batteries and helping you develop proper battery management habits that extend model lifespan.
• Can I update the FS-SR8 firmware myself? — Yes, the online update capability allows you to download the latest firmware from FlySky's servers and upload it to your receiver through your transmitter and a compatible interface. Regular updates add new features, improve performance, and ensure compatibility with the latest transmitter firmware, keeping your receiver current without requiring hardware replacement.
• Is the FS-SR8 waterproof for use in RC boats and rain? — The FS-SR8 is not specified as fully waterproof; however, the compact design and lack of exposed connectors (when properly installed) provide good splash resistance for casual use in wet conditions. For RC boat use, recommend protecting the receiver in a sealed enclosure or waterproof box. The specified humidity tolerance of 20-95% confirms the electronics can handle moisture, but submersion is not recommended.
• What are the size and weight specifications? — The FS-SR8 measures 44.8 × 26.6 × 11.3 millimetres and weighs just 10 grams, making it one of the most compact 8-channel receivers available in the UK market. These dimensions fit easily into modern RC car frames, aircraft fuselages, and boat hulls where space is at a premium, without sacrificing control functionality.

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 FLYSKY FS-SR8 8CH 2.4GHZ RECEIVER FS-SR8 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.