The RadioLink T12D is a versatile 12-channel computer transmitter designed for hobby model builders. It supports a wide range of models including aerobatic aircraft, gliders, multirotors, cars, boats, tracked vehicles, and robots. The transmitter features an internal FHSS RF module and also supports external ELRS and TBS Crossfire modules for extended range. Its ergonomic design ensures a comfortable grip and intuitive operation.
Controls:
The main controls are handled via precise gimbals with adjustable spring tension. The throttle axis can be ratcheted and positioned on either side, allowing flexible selection of modes 1–4. Digital trims provide acoustic feedback for steps and center position. Additional channels can be controlled using two front rotary knobs and two rear rotary controls with spring return. Four switches (three 3-position and one 2-position) can be assigned as channel switches or function toggles. Programming is done via buttons, a rotary encoder with push function, and a 2.8-inch color LCD with a resolution of 320 x 240 pixels. The system runs on freeRTOS.
Power Supply:
The T12D supports multiple power options including two 18650 Li-ion batteries (holder included), 8-cell NiMH AA battery packs, or 2S–4S LiPo/Li-ion packs. It can also be powered via a USB-C port, for example using a power bank.
Transmission System:
The transmitter uses FHSS frequency hopping technology to ensure high reliability, long range, and strong interference resistance. Three FHSS protocols with different transmission speeds are available: 14 ms for analog servos and 4 ms / 3 ms for digital servos. When used with telemetry receivers, data from both the receiver and connected RadioLink flight controllers can be transmitted. External RF modules support ELRS and CRSF V2 bidirectional protocols.
Programs and Functions:
The T12D offers programs for eight different model types and provides extensive customization options. Up to 50 models can be stored, copied, and renamed.
- Programs for airplanes, flying wings/delta, multirotors, helicopters, cars, boats, tracked vehicles/tanks, and robots
- Memory for up to 50 models with copy and rename function
- System settings for display brightness, contrast, backlight, and language
- Selectable stick modes 1–4
- Servo monitor
- Servo reverse
- Adjustable endpoints
- Adjustable servo speed
- Free channel assignment for channels 5–12
- 8 programmable mixers with linear, exponential, curve, or 9-point curve options
- Switchable control modes with up to 17 configurations
- 3 flight modes
- Dual rate and selectable response curves for channels 1, 2, and 4
- Throttle curve with up to 9 points
- Throttle hold (engine cut for aircraft, autorotation for helicopters)
- V-tail mixing
- Delta/flying wing mixing
- Gyro control mixing for compatible RadioLink receivers
- Collective pitch curve for helicopters
- Swashplate mixing for helicopters
- Mixing for tracked vehicles
- Fishing boat control with route planning up to 100 waypoints (requires R16F and compatible RadioLink controller with GPS)
- Auxiliary ID function for controlling multiple models without switching model memory
- 2 timers
- Custom switch assignments
- USB-C port for firmware updates and RC simulator control (from version V1.7.1)
- Trainer port for wired connection between two RadioLink transmitters
Compatible Receivers:
The RadioLink T12D is compatible with R12F, R16F, R8FM, R8SM, R8XM, R8FGH, R8FG, R7FG, R6FG, R6F, R6FGM, and R4F receivers. The included R12F receiver supports multiple output modes including 12 PWM outputs, 11 PWM + S.BUS, 9 PWM + S.BUS + CRSF RX/TX, and 10 PWM + CRSF RX/TX, allowing flexible connection of servos and control units.
Telemetry:
When using the internal FHSS system with RadioLink telemetry receivers, data such as receiver voltage and RSSI signal strength can be displayed. With the R16F receiver, it is also possible to measure and display the voltage of a drive battery up to 6S LiPo. Adjustable warning thresholds for low signal or low voltage are supported. When using a RadioLink control unit, telemetry data from the unit can also be displayed. With external RF modules using the CRSF protocol, telemetry from compatible receivers can be shown as well.
Package Includes:
- RadioLink T12D transmitter
- RadioLink R12F receiver (non-telemetry)
- USB-C cable
- Gimbal parts and spring set
- User manual
