RadioLink T12D 2.4GHz 12-Channel Transmitter with R12F Receiver (Mode 2) RLKT121011

Overview

The RadioLink T12D 2.4GHz 12-Channel Transmitter with R12F Receiver (Mode 2) represents a genuine leap forward in affordable, feature-rich RC radio systems for the UK market. Whether you're an experienced RC pilot looking to expand your fleet, a club flyer seeking a reliable workhorse transmitter, or someone discovering the world of RC control for the first time, the T12D delivers professional-grade performance without the professional-grade price tag. RadioLink has established itself over more than a decade as an innovative, forward-thinking and dependable radio brand, and the T12D exemplifies this commitment to quality and value.

This mid-range telemetry-capable transmitter has been specifically designed with a future-proof feature-set to suit everyone from traditional fixed-wing enthusiasts, to multirotor pilots, helicopter flyers, truck and track drivers and even bait boat fishermen. The T12D is an embellished version of the popular AT9S, bringing enhanced capabilities and refined ergonomics to a system that will genuinely become the only transmitter you'll ever need for your RC applications. With amazingly competitive receiver pricing and compatibility with multiple RadioLink receiver options, you'll realise that you can afford to conveniently grow or re-equip your entire RC fleet with confidence.

Now firmly established across the UK RC community, the T12D is a radio system that you'll not only love for its features and flexibility but one you'll grow to adore for its comfort, ease of use and solid reliability. The combination of intuitive programming, a vibrant colour LCD display, comprehensive telemetry features, wireless trainer link options and genuinely tidy good looks makes this an exceptionally capable mid-range RC transmitter system.

Key Features

• 12 Fully Proportional Channels — All 12 channels are completely programmable and fully proportional, meaning you have precise control over every aspect of your model with smooth, accurate servo response. This level of channel count provides the versatility needed for complex models including helicopters with multiple mixing requirements, fixed-wing aircraft with advanced flight control surfaces, and multirotor systems requiring sophisticated control inputs.
• 50 Model Memory Slots — Store up to 50 different model configurations with individual settings, trim values, and programming for each. This allows you to quickly switch between your entire RC fleet without manually reprogramming every time you change models, whether you're running an RC car UK collection, fixed-wing aircraft or helicopter systems.
• Colour LCD Display — The bright 2.8-inch colour LCD screen with 320×240 pixel resolution displays your telemetry data, model information and menu systems with excellent clarity and readability. This represents a significant upgrade over traditional black-and-white displays and makes menu navigation and parameter adjustment far more intuitive and user-friendly.
• FHSS 2.4GHz Frequency Hopping Protocol — RadioLink's FHSS (Frequency Hopping Spread Spectrum) technology utilises 67 channels of pseudo-random frequency hopping across the 2.4GHz ISM band (2400MHz–2483.5MHz). This approach delivers enhanced interference rejection and rock-solid full-range transmission, ensuring your signal remains stable and secure even in RF-crowded environments such as flying fields with multiple operators or urban areas with wireless networks.
• Receiver Battery and RSSI Telemetry Standard — Monitor your receiver battery voltage and received signal strength indicator (RSSI) in real-time during flight or operation. Low voltage alarms can be customised for receiver battery, transmitter battery, model battery and RSSI, providing peace of mind that you'll always know the status of your system before something goes wrong.
• Mode Change Capable (Mode 1/Mode 2) — The T12D supports both Mode 1 (European) and Mode 2 (American) stick configurations, allowing you to switch between throttle-on-right or throttle-on-left layouts. This package ships with Mode 2 configuration, but can be easily reconfigured if your preference changes.
• Wide Input Voltage Range (7.4V–18.0V) — Power your transmitter with 8 AA batteries, a 2S LiPo battery, a 3S LiPo battery, a 4S LiPo battery, or even an 18650 lithium battery cell. This exceptional flexibility means you can use whatever power source you have available, and the transmitter includes built-in reverse polarity protection to prevent damage from accidentally reversed batteries.
• 4096-Bit Channel Resolution — Each channel operates at 4096 levels of resolution with regular jitter of just 0.25 microseconds, providing extremely precise servo positioning and smooth, accurate control response. This high resolution ensures that even minute stick movements translate into proportional model responses without stepping or dead zones.
• Transmitter and Receiver Low Battery Warnings — Customisable low voltage alarms alert you if either the transmitter or receiver battery voltage drops below your set threshold. Optional telemetry modules provide additional motor battery voltage warnings, allowing you to monitor the battery voltage of your model's power system as well.
• GPS Telemetry Support — The T12D supports GPS telemetry data via compatible sensors and modules, allowing you to monitor your model's position, altitude, speed and other flight data in real-time during flight.
• Waypoint Mission Capable — With GPS telemetry support, the T12D can be configured for waypoint-based autonomous missions on compatible models such as fixed-wing aircraft and multirotor systems equipped with appropriate flight controllers.
• Long-Range Module Compatibility — The T12D fully supports ELRS (ExpressLRS), TBS Crossfire, and other mainstream long-range modules, allowing you to extend your control range far beyond the standard 4000-metre line-of-sight distance for specialist applications requiring extended range.
• Selectable Response Latency (3ms, 4ms, 14ms) — Choose between three response latency settings to optimise performance for different flying styles and model types. The lower latency options provide snappier control response for racing and aerobatic flying, whilst the higher latency option extends battery life when maximum responsiveness is not critical.
• Multiple Output Formats (PWM, S-Bus, PPM, CRSF) — The T12D and R12F receiver support multiple signal output formats including traditional PWM, S-Bus digital protocol, PPM pulse position modulation, and CRSF (Crossfire Serial Protocol). This ensures compatibility with essentially any modern flight controller, ESC or servo system on the market.
• Professional Switch and Control Configuration — The T12D features 1 two-position switch and 3 three-position switches, plus 2 proportional digital slider controls and 2 proportional rotary dials. This comprehensive control surface layout allows you to manage complex model functions and switching requirements for helicopter swashplate control, flight mode selection, dual-rate engagement and much more.
• Cable and Wireless Trainer Compatibility — Connect another T12D or compatible transmitter via cable or wireless trainer link to teach new pilots or practice without risking your models. The trainer function allows the instructor to retain full control whilst allowing the student to practise on secondary channels.
• Intuitive Programming System — Despite its professional feature set, the T12D has been designed with user-friendly programming that doesn't require a computer or external software. All configuration can be done directly on the transmitter using the colour LCD menu system.
• Sturdy Metal Carry Handle — A robust metal handle makes transporting and carrying your transmitter safe and comfortable, protecting your investment whilst making it easy to move between flying sites, club meetings or field pits.
• Digital Trims and Trim Step Control — Adjust servo trim values using digital controls with customisable trim step increments, providing precise fine-tuning of neutral positions for each channel without mechanical trim lever movement.
• Comprehensive Model Mixing Functions — The T12D includes pre-programmed mixers for common model types and fully programmable custom mixing for advanced applications. Supported mixing includes aileron differential, air brake, v-tail mixing, elevon mixing, throttle curves, servo speed control, and revolution mixing.
• Flight Conditions Programming — Set up different control parameters for different flight conditions or flight modes on models equipped with appropriate control systems, allowing you to optimise handling for various scenarios.
• Servo Monitor Function — Directly monitor servo positions and movement from the transmitter display, useful for checking servo centering, range of motion and identifying servo binding or mechanical issues without powering up your model.
• Throttle Cut and Fail-Safe Programming — Configure throttle cut functions to prevent unexpected motor operation, and set customisable fail-safe positions for all channels in case of signal loss or transmitter malfunction.
• Twin Timers and Throttle-Activated Timer — Track flight time with two independent timers, with one capable of being activated only when throttle is advanced. Useful for monitoring flight duration, practice session timing and engine run time on fuel-powered models.
• End Point Adjustment and Sub Trim — Independently adjust the maximum and minimum servo throw for each channel, plus apply offset trim values to move the entire channel's range without affecting trim position.
• Dual Rate and Exponential Adjustment — Reduce control sensitivity and response rate for smooth, precise flying or increase it for snappy, aggressive control. Exponential adjustment allows you to maintain linear response near centre stick whilst compressing response at the extremes.
• Simulator Mode with Open-Source Support — The T12D includes built-in PC game joystick communication via Type-C connection to support open-source simulators such as TRYP FPV, AeroFly, Uncrashed, Liftoff, FPV LOGIC, and Velocidrone. No external dongle is required, and the system works with both macOS and Windows computers, allowing you to practice flying without risking your models.
• Firmware Upgrade Capability — Connect the T12D to a computer via the Type-C port to download and install the latest firmware updates with new features and improvements. The R12F receiver can also be upgraded independently with the same Type-C connection system.
• Vibration Alarm — An optional vibration alarm function can alert you to important events during flight, such as low battery voltage or signal loss, without requiring you to look at the display screen.
• Ergonomic Design — The T12D has been refined with ergonomics at the forefront, featuring a comfortable grip designed to reduce hand fatigue during extended flying sessions. The control layout and button placement have been optimised for intuitive operation.
• Adaptive Model Support — The T12D is specifically designed to work with helicopters, fixed-wing aircraft, gliders, multicopters, RC cars, RC boats, and even robots, making it genuinely versatile across the entire spectrum of RC hobbies available in the UK.

Technical Performance

The RadioLink T12D transmitter represents modern RF engineering and user interface design working in harmony. Operating across the 2.4GHz ISM band with FHSS 67-channel frequency hopping, the system delivers a maximum control range of 4000 metres in the air under unobstructed line-of-sight conditions, utilising transmitter power of less than 100mW (20dBm) with adjacent channel rejection exceeding 36dB to reject interference from nearby wireless devices. The channel bandwidth of 400kHz with 1200kHz channel pacing and 38kbps transmission rate ensures a reliable, interference-resistant link. The 3ms, 4ms, and 14ms selectable response latency options allow optimisation for different flying styles, from competitive racing requiring minimum latency to endurance flying favouring battery conservation. The transmitter features a Type-C port capable of accepting 5V input at up to 500mA for charging or computer connection, with output voltage of 4.6–5.0V at maximum 1A output current. Operating current consumption is approximately 100mA at 8.4V with a tolerance of ±10mA, making battery life reasonable across the supported power input range of 7.4–18.0V. The compact transmitter measures 174.3 × 206.9 × 106.9mm (6.86 × 8.15 × 4.21 inches) and weighs 536g (18.9oz), with the antenna extending 90mm (3.54 inches) above the body. The battery case measures 114.4 × 35.4 × 32mm (4.5 × 1.39 × 1.26 inches), whilst the R12F receiver is considerably more compact at 35.6 × 25 × 13.6mm (1.4 × 0.98 × 0.54 inches) and weighs just 11.8g (0.42oz) with an antenna length of 205mm (8.07 inches). The receiver operates on 3–12V input with current consumption of 37±3mA at 5V, and both transmitter and receiver are rated for operating temperatures from ?30°C to +85°C, making them suitable for use in varying climate conditions.

The T12D transmitter features a 2.8-inch colour LCD screen with 320×240 pixel resolution displaying 16 colours, running on a freeRTOS operating system with LVGL graphical user interface for responsive, intuitive menu navigation. The system supports 50 independent model configurations with 16 subsidiary ID storage slots for complex multi-system setups, whilst the PWM output range of 875–2125 with 15ms per frame cycle provides compatibility with essentially every servo and ESC system in production. The 4096-bit channel resolution with 0.25-microsecond regular jitter ensures smooth, precise control without stepping or dead zones that would be perceptible to the user. The receiver's multiple output format support (PWM, S-Bus, PPM, CRSF) combined with support for compatible control boards including ArduPilot, Pixhawk, Arduino and Raspberry Pi makes the T12D suitable for everything from traditional RC aircraft and helicopters to autonomous systems and robotics applications. The system supports 270-degree servo operation when enabled through the receiver settings RF protocol menu, allowing use with specialised high-range servos for helicopter swashplate control or other demanding applications.

What's in the Box

• 1× RadioLink T12D 2.4GHz 12-channel transmitter with integrated colour LCD display and all control surfaces
• 1× R12F 12-channel S-Bus receiver with dual antenna and Type-C firmware upgrade port
• 1× Throttle stick spring retainer for secure throttle stick operation
• 1× USB Type-C cable for firmware updates, charging and simulator mode connectivity
• 1× Comprehensive instruction manual with setup and programming guidance

What You Need to Complete

• 8× AA batteries for the transmitter (alternatively, a 2S–4S LiPo battery or 18650 lithium battery can be used with appropriate connector)

Frequently Asked Questions

• Is the RadioLink T12D suitable for beginners in the UK RC hobby? — Yes, absolutely. Whilst the T12D offers professional-grade features that will satisfy experienced pilots, the intuitive programming system, clear colour LCD display and comprehensive instruction manual make it very accessible to newcomers. The menu system can be navigated without requiring a computer, and the transmitter ships in a sensible default configuration. However, the T12D is truly a system that grows with you, offering advanced features like programmable mixers, flight conditions, and wireless trainer compatibility that you'll appreciate as your skills develop.
• What battery options are available for the T12D transmitter? — The T12D offers exceptional flexibility, accepting power input from 7.4V to 18.0V. This means you can use 8 standard AA batteries, a 2S LiPo battery (7.4V nominal), a 3S LiPo battery (11.1V nominal), a 4S LiPo battery (14.8V nominal), or even an 18650 lithium battery cell. The transmitter includes built-in reverse polarity protection, so you won't damage it if you accidentally insert batteries backwards. The Type-C port also allows charging via a mobile power bank or computer, which is convenient when travelling to flying sites or competitions.
• How far will the T12D control my model? — Under ideal conditions in an unobstructed area free from interference, the T12D achieves a maximum control range of 4000 metres in the air using its standard FHSS link. In typical club flying conditions, you'll achieve full-range control well beyond any practical need. If you require even greater range for specialist long-range applications, the T12D supports compatible long-range modules including ExpressLRS (ELRS) and TBS Crossfire systems, though range with these systems depends on the specific module specifications.
• Which models can I use the T12D with? — The T12D is specifically designed to work with helicopters, fixed-wing aircraft, gliders, multicopters, RC cars, RC boats, and robots. Whether you fly traditional fixed-wing aircraft, race multicopters, fly acrobatic helicopters, run RC cars and trucks on UK racing circuits, or operate bait boats on fishing waters, the T12D's flexible feature set can be configured for your application. The included R12F receiver is compatible with the T12D, and additionally compatible with T16D, T8FB, T8S, RC8X, RC6GS V3, RC4GS V3, RC6GS V2, RC4GS V2, RC6GS and RC4GS transmitters should you expand your system in the future.
• What receivers can I use with the T12D besides the included R12F? — The T12D is compatible with a comprehensive range of RadioLink receivers, including the R16F, R16SM, R8EF, R8FM, R8SM, R8XM, R8FGH, R8FG, R7FG, R6FG, R6F, R4FGM and R4F. This means you can equip multiple models or expand your system with receivers offering different features, channel counts or size factors to suit specific applications.
• Can I upgrade the firmware on my T12D and receiver? — Yes, both the T12D transmitter and R12F receiver can be updated with the latest firmware. Using the included USB Type-C cable, connect the transmitter or receiver to a computer to download and install firmware updates, which add new features and performance improvements. No external devices or dongles are required for the upgrade process.
• Does the T12D work with flight simulators? — Yes, the T12D includes built-in simulator support. With a firmware upgrade to V1.7.1, connect your transmitter to a computer via the USB Type-C cable and the system acts as a game joystick for supported open-source simulators including TRYP FPV, AeroFly, Uncrashed, Liftoff, FPV LOGIC and Velocidrone. The R12F receiver also includes a built-in PC game joystick communication program (requiring firmware upgrade to V1.7) and can be used directly for simulator support. Both systems work on macOS and Windows computers with no additional hardware required.
• Can I use the T12D for training other pilots? — Yes, the T12D supports both cable and wireless trainer functionality. Connect a secondary transmitter (or another T12D) to function as a trainer system, allowing an instructor to demonstrate manoeuvres or take control if necessary whilst a student practises flying. This is invaluable for teaching new pilots and building confidence in controlled conditions.
• What telemetry data can the T12D display? — Standard telemetry includes receiver battery voltage and received signal strength indicator (RSSI), both displayed in real-time on the colour LCD. With optional telemetry modules such as the PRM-01, you can add motor battery voltage monitoring. The T12D also supports GPS telemetry for models equipped with compatible GPS sensors, allowing you to monitor position, altitude, speed and other flight data during operation.
• How does the FHSS frequency hopping system benefit me? — FHSS (Frequency Hopping Spread Spectrum) technology automatically switches across 67 different channels within the 2.4GHz band in a pseudo-random pattern. This approach provides two key benefits: first, it dramatically reduces interference from other wireless devices such as WiFi networks, bluetooth equipment and other radio systems that might be operating near your flying field; second, it ensures signal security by making the link extremely difficult to intercept or jam. You benefit from rock-solid, reliable control even in RF-crowded environments.
• Is the T12D good value for money compared to other RC transmitters? — The T12D represents exceptional value. Combining 12 fully proportional channels, comprehensive telemetry capabilities, 50 model memory slots, a colour LCD display, wireless trainer support and compatibility with multiple long-range modules, the T12D offers features and capability that would cost significantly more from competing brands. Additionally, RadioLink's receiver pricing is remarkably competitive, making it affordable to equip multiple models with compatible receivers.

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 RadioLink, 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 RadioLink T12D 2.4GHz 12-Channel Transmitter with R12F Receiver (Mode 2) RLKT121011 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.