Radiolink AT9S Pro 2.4G 12CH RC Transmitter with R9DS Receiver — DSSS/FHSS, SBUS/PPM/PWM, Mode 1 & 2
$454.47
Descripción
The Radiolink AT9S Pro is a professional-grade 2.4GHz 12-channel RC transmitter built for serious pilots and hobbyists operating fixed-wing aircraft, multi-rotor drones, helicopters, and RC cars. It ships bundled with the Radiolink R9DS receiver and supports DSSS, FHSS, and CRSF signal modulation for strong interference resistance across a control range of up to 4 kilometres. A 2.8-inch full-colour 240×320 display provides clear real-time telemetry and settings visibility. Available in Grey or Gold body, in Mode 1 (right-hand throttle) or Mode 2 (left-hand throttle) configurations.
Variant Guide — Colour & Mode
| Variant | Body Colour | Throttle Mode | Receiver |
|---|---|---|---|
| Grey M1 + R9DS | Grey | Mode 1 (right-hand throttle) | R9DS included |
| Grey M2 + R9DS | Grey | Mode 2 (left-hand throttle) | R9DS included |
| Gold M1 + R9DS | Gold | Mode 1 (right-hand throttle) | R9DS included |
| Gold M2 + R9DS | Gold | Mode 2 (left-hand throttle) | R9DS included |
Mode 1 vs Mode 2 refers to throttle stick position only — all other features are identical across variants. If you are accustomed to a specific mode from another transmitter, select accordingly. Mode 2 is the most common convention in North America and Europe.
Product Details
- Model: Radiolink AT9S Pro
- Frequency: 2.4GHz
- Channels: 12CH (switchable to 10CH)
- Signal Modulation: DSSS, FHSS, CRSF
- Control Range: Up to 4km (unobstructed)
- Display: 2.8-inch full-colour TFT, 240×320 pixels
- Receiver Output Protocols: SBUS, PPM, PWM
- Throttle Mode: Mode 1 or Mode 2 (variant-dependent)
- Compatible Receivers: R12DSM, R12DS, R9DS (R9DS included)
- Body Weight: 0.88kg
- Available Colours: Grey, Gold
- Supported Platforms: Fixed-wing aircraft, multi-rotor drones, helicopters, RC cars
- Box Contents: AT9S Pro transmitter, R9DS receiver, lanyard, mode-change parts, user manual
Why the AT9S Pro
- Triple modulation (DSSS + FHSS + CRSF): Most entry-level 2.4GHz transmitters offer a single modulation type. The AT9S Pro’s triple-mode signal stack means genuine frequency hopping and spread-spectrum interference resistance — critical in environments with dense 2.4GHz traffic such as flight fields and parks.
- 4km control range: In line-of-sight unobstructed conditions, the 4km range significantly exceeds typical hobbyist requirements, providing headroom for long-range fixed-wing flights and FPV operations within legal visual range limits.
- 12-channel capacity: 12 channels cover virtually every servo, ESC, gimbal, and auxiliary function requirement for complex fixed-wing and multi-rotor builds without channel-count compromises.
- 2.8” colour telemetry display: On-transmitter telemetry display eliminates the need for a separate ground station display for basic flight data monitoring — a meaningful convenience advantage over transmitters with monochrome or no onboard display.
- 0.88kg weight: Transmitters in this feature class often weigh significantly more. The AT9S Pro’s weight keeps extended flying sessions comfortable without sacrificing build quality.
- Broad receiver compatibility: R12DSM, R12DS, and R9DS compatibility means you can standardise on Radiolink receivers across multiple airframes without purchasing a new transmitter for each platform.
Frequently Asked Questions
Q: What is the difference between Mode 1 and Mode 2?
A: Mode 1 places the throttle on the right stick; Mode 2 places the throttle on the left stick. All other channel functions and features are identical. Mode 2 is the predominant convention in North America and most of Europe. If you learned on a specific mode, select accordingly — changing modes after learning is possible but requires a transition period.
Q: Does this transmitter work with non-Radiolink receivers?
A: The AT9S Pro uses Radiolink’s proprietary 2.4GHz protocol for its standard DSSS/FHSS operation. It is compatible with Radiolink receivers (R12DSM, R12DS, R9DS). CRSF support allows use with compatible ExpressLRS or Crossfire modules if CRSF connectivity is required. It is not natively compatible with Futaba FASST, Spektrum DSM2/DSMX, FrSky, or other proprietary protocols without an additional module.
Q: Can I change the mode after purchase?
A: Mode-change parts are included in the box. The physical mode conversion process involves adjusting the gimbal spring tension — it is a mechanical modification that can be done at home with care, but select the correct mode upfront if possible to avoid the conversion.
Q: What receiver is included?
A: All variants include the Radiolink R9DS receiver, which supports SBUS, PPM, and PWM output — covering the vast majority of flight controller and receiver-input configurations.
Q: Is this legal to fly in my country?
A: The AT9S Pro operates on the 2.4GHz ISM band, which is licence-exempt for RC use in most countries. However, regulations on maximum transmit power, airspace use, registration requirements, and visual line-of-sight rules vary by jurisdiction. Buyers are responsible for compliance with local RC aviation regulations (e.g., Transport Canada, FAA, CAA, EASA).
Care & Storage
- Batteries: The AT9S Pro requires AA batteries or an optional LiPo tray (not included). Always remove batteries during storage to prevent leakage damage to the transmitter internals.
- Gimbals: Avoid exposing the gimbals to sand, dust, or moisture. If grit enters the gimbal mechanism, use compressed air to clear — do not use liquid cleaners near the gimbal assembly.
- Antenna: Do not fly with the antenna pointed directly at the aircraft — signal strength is weakest at the antenna tip. Keep the antenna perpendicular to the flight path for best link quality.
- Storage: Store in a dry, temperature-stable environment. Avoid prolonged storage in direct sunlight or in high-humidity conditions, which can degrade the LCD display and internal electronics over time.
- Firmware: Radiolink releases firmware updates periodically. Check the Radiolink official website for the latest firmware to ensure compatibility with new receivers and access bug fixes.
Shipping & Handling
The AT9S Pro transmitter and R9DS receiver are packed securely for international shipping. Standard tracked international shipping is included. Delivery typically takes 7–21 business days from dispatch depending on destination.
Please inspect the package upon delivery. If the transmitter or receiver shows transit damage, contact us within 24 hours with photographs of the packaging and unit.
RC transmitters operating on the 2.4GHz band are subject to import and radio equipment regulations in some jurisdictions. Buyers are responsible for confirming local import compliance. VAT and customs duties beyond prepaid amounts are the responsibility of the customer.
Radiolink AT9S Pro 2.4GHz 12-channel RC transmitter with R9DS receiver. DSSS/FHSS/CRSF signal modulation. 4km control range (unobstructed). 2.8” 240×320 colour display. SBUS/PPM/PWM output. Mode 1 and Mode 2 variants. Compatible receivers: R12DSM, R12DS, R9DS. Body weight: 0.88kg. Specifications sourced from supplier documentation; minor variances between production batches may occur. ±5% tolerance on all stated figures.

