Product overview
The RadioLink AT9S Pro is a programmable radio-control transmitter for helicopters, fixed-wing aircraft, gliders and multicopters, with additional car, boat and robot modes. Its interface combines two VR knobs, two sliders, five toggle switches and a trainer switch with a 2.8-inch, 16-bit color display. All twelve channels can be programmed, including airbrake and control-surface mixes. An STM32F103VET6 processor and TI CC2533 wireless chip underpin its DSSS/FHSS radio architecture, which uses 16-channel pseudo-random frequency hopping and QPSK modulation. USB connectivity supports firmware upgrades and data copying.
Receiver selection determines channel configuration, signal outputs and control distance. Under DSSS&FHSS, SBUS, PPM and PWM can operate simultaneously; CRSF integration requires TBS Crossfire bound to a BLACKSHEEP receiver. The listed supplied receiver is the 9/10-channel R9DS with SBUS and PWM outputs, although actual package contents depend on the purchased configuration. The Crossfire connection cable is excluded. PRM-01 provides model-voltage display with R9DS or R12DS, while PRM-03 supports expanded telemetry through specified receiver and flight-controller combinations. Receiver-specific airborne distances range from 500m to 4000m under optimal flight conditions, with environmental factors affecting actual range.
The listed control-equipment package contains one transmitter, receiver, lanyard, hook and spring, manual and box, subject to the purchased configuration. Power options include eight AA batteries, 2S–4S LiPo or a 18650 lithium battery; the 18650 option requires a JST connector and a 116 × 36 × 32mm battery case. Connecting TBS Crossfire limits LiPo use to a maximum of 3S. Operating current is as low as 90mA, with 12 hours of continuous use specified for a 3S 1800mAh Li-ion battery. Reverse-polarity protection and configurable sound, message and vibration alarms support operation.
Specifications
| Specification | Value & conditions |
|---|---|
| Product configuration | RadioLink AT9S Pro radio-control transmitter; 10/12 channels; DSSS&FHSS and CRSF protocol options. |
| Supported model types | Helicopter, fixed-wing, glider, multicopter, car, boat and robot modes, with automatic layout switching. |
| Radio architecture | DSSS/FHSS hybrid spread spectrum, 16-channel pseudo-random frequency hopping and QPSK modulation. |
| Processor and wireless chip | STM32F103VET6 MCU: 32-bit ARM, 72MH basic frequency, 512K flash capacity and 12-bit ADC; TI CC2533 wireless chip. |
| Response and servo precision | 3ms response; 4096-section precision; maximum servo output jitter of 1.84us and typical jitter of 0.25us. |
| Ground and airborne control distances | Ground/airborne: R9DS 900m/3400m; R12DS 2000m/4000m; R12DSE 2000m/4000m; R12DSM 1100m/4000m; R6DS 300m/600m; R6DSM 300m/500m.Receiver-specific distances under optimal flight conditions; actual range may vary with environmental factors. |
| Control-distance limitation | Operational-distance figures apply to optimal flight conditions; actual control range may vary.Optimal flight conditions; environmental factors affect actual control range. |
| Signal and protocol integration | Simultaneous SBUS, PPM and PWM operation under DSSS&FHSS; CRSF support through TBS Crossfire.DSSS&FHSS operation; CRSF operation requires TBS Crossfire bound to a BLACKSHEEP receiver. |
| Listed supplied receiver | R9DS receiver with 9/10 channels and SBUS and PWM outputs.Actual package contents depend on the purchased sales configuration. |
| Compatible receivers and pairing capacity | Compatible receivers: R12DS, R12DSE, R12DSM, R9DS, R6DS and R6DSM; up to 30 receivers paired simultaneously. |
| R12DSE receiver | 12 channels; SBUS or CRSF output; suggested for racing drones or multicopters. |
| R12DS receiver | 12 channels; SBUS and PWM outputs; suggested for helicopters, fixed-wing aircraft, multicopters, cars, boats or robots. |
| R6DS receiver | 6/10 channels; SBUS, PPM and PWM outputs; suggested for helicopters, fixed-wing aircraft, multicopters, racing drones, gliders, cars, boats or robots. |
| R6DSM receiver | 10 channels; SBUS or PPM output; suggested for racing drones or multicopters. |
| Concurrent-pilot capability | Anti-interference capability for 100 pilots competing simultaneously in the same field.100 pilots competing simultaneously in the same field. |
| Wireless trainer distance | Instructor movement within 600 meters without signal disruption.Wireless trainer operation. |
| Simulator support | Simulator functions support indoor practice. |
| Programmable mixing | All twelve channels programmable; pre-programmed airbrake mixes; aileron/elevator and flap/aileron mixing for fixed-wing or V-tail models. |
| Battery compatibility | JST battery connection; eight AA batteries, 2S-4S LiPo or a 18650 lithium battery.A 18650 lithium battery requires a JST connector and a 116*36*32mm battery case; with TBS Crossfire connected, maximum 3S LiPo or a 18650 lithium battery is supported. |
| Input voltage | 7.4-15V input. |
| Operating current and endurance | Operating current as low as 90mA; 12 hours of continuous use.12 hours of continuous use with a 3S 1800mAh Li-ion battery. |
| Battery-case dimensions | 116*36*32mm, L*W*H; 4.57*1.42*1.26 inches.When powering the transmitter with a 18650 lithium battery, a JST connector and the specified battery-case dimensions are required. |
| Model-voltage telemetry | PRM-01 enables model-voltage display; the accompanying receiver restriction specifies R12DS and R9DS only.PRM-01 paired with an R9DS or R12DS receiver. |
| Expanded telemetry integration | Flight controllers: PIX6, PIXHAWK, CrossFlight-CE, CrossFlight, CrossRace Pro, CrossRace, Mini Pix and TURBO PiX. Telemetry: model voltage, speed, climb, throttle, longitude, latitude, altitude, GPS, RSSI, flight mode, yaw, roll, pitch and distance.PRM-03 with R12DS, R12DSE or R9DS and a listed flight controller. |
| Controls and display | Two VR knobs, two sliders, three three-position toggle switches, two two-position toggle switches, one trainer switch and a Noble potentiometer; 2.8-inch 16-bit true-color display; USB upgrades and data copying. |
| Reverse-polarity protection | Reverse-polarity connection protection for transmitter and receiver. |
| Configurable alarms | Sound, message and vibration alarms for low RSSI, model voltage, receiver voltage or transmitter voltage. |
| Firmware feature updates | Firmware upgrades add features; new versions are released without separate notifications. |
| Package contents | Transmitter ×1, receiver ×1, lanyard ×1, hook and spring ×1, user manual ×1 and packing box ×1. TBS Crossfire connection cable not included.Actual contents depend on the purchased sales configuration; TBS Crossfire connection cable is excluded. |
| Receiver and telemetry accessories | Receivers: R12DS, R12DSE, R9DS, R6DS and R6DSM. Voltage telemetry module: PRM-01. OSD telemetry module: PRM-03.Listed as selectable accessories. |
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