RadioLink AT9S PRO 2.4G 12CH DSSS FHSS RC Transmitter — Orange or Gray, R9DS Receiver Optional
$368.64$400.29
The RadioLink AT9S PRO is a 2.4GHz 12-channel RC transmitter supporting DSSS, FHSS, and CRSF protocols for broad receiver compatibility...
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The RadioLink AT9S PRO is a 2.4GHz 12-channel RC transmitter supporting DSSS, FHSS, and CRSF protocols for broad receiver compatibility and reliable link quality. It provides up to 4km air control range and features a 2.8-inch 16-bit true colour display for real-time data readout. Default Mode 2 (left-hand throttle); Mode 1 available on request. Available in orange or gray, as a transmitter-only unit or bundled with the R9DS receiver. Compatible with rotary-wing, fixed-wing, multicopter, car, boat, and robot platforms. Weight: 880g.
DSSS + FHSS + CRSF12 Channels4km Air Range2.8-inch Colour Display880gOrange or Gray
Variant Guide — Which Configuration?
Variant
Includes
Best For
TX Only — Orange
Transmitter only
Buyers who already own a compatible receiver; orange colourway
TX Only — Gray
Transmitter only
Buyers who already own a compatible receiver; gray colourway
TX + R9DS — Orange
Transmitter + R9DS receiver
Complete system; orange colourway; R9DS supports DSSS and FHSS
TX + R9DS — Gray
Transmitter + R9DS receiver
Complete system; gray colourway; R9DS supports DSSS and FHSS
The R9DS receiver supports DSSS and FHSS protocols and binds natively with the AT9S PRO. If you require CRSF protocol, a CRSF-compatible receiver must be sourced separately. ±5% tolerance on all stated specifications.
Not Best For: Operators who need Mode 1 out of the box — the AT9S PRO ships Mode 2 by default (Mode 1 requires a gimbal swap). Not suitable for pilots who need sub-100g transmitter weight for portable or backpack setups. Not compatible with non-RadioLink receivers unless using CRSF protocol with a compatible CRSF receiver.
Product Details
Model: RadioLink AT9S PRO
Frequency: 2.4GHz
Channels: 10/12CH
Protocols: DSSS, FHSS, CRSF
Control Range: Up to 4km (air, unobstructed)
Display: 2.8-inch 16-bit true colour LCD
Weight: 880g
Default Mode: Mode 2 (left-hand throttle); Mode 1 available via gimbal swap
Triple protocol support — DSSS, FHSS, CRSF: The AT9S PRO supports three RF protocols in a single transmitter. DSSS and FHSS cover the majority of RadioLink-compatible receivers; CRSF enables integration with ExpressLRS and other CRSF-compatible receivers for operators who need cross-platform flexibility without a separate radio.
4km air range: Extended control range supports larger fixed-wing and rotary platforms operating at greater distances, reducing the likelihood of link loss during long-distance or high-altitude flights.
2.8-inch 16-bit true colour display: A full-colour screen provides significantly more information density and readability than monochrome STN displays found on entry-level transmitters, supporting real-time telemetry data, model settings, and system status at a glance.
12-channel capacity: Supports complex aircraft requiring flaps, landing gear, camera gimbal, FPV pan/tilt, retractable undercarriage, and other auxiliary channel functions without compromise.
Platform versatility: A single transmitter profile system covers fixed-wing, helicopter, multicopter, ground vehicle, marine, and robot platforms — reducing the need to own multiple radios for different RC disciplines.
Mode 2 default with Mode 1 option: Ships in the most common global mode configuration; Mode 1 is available for pilots who require right-hand throttle operation.
Frequently Asked Questions
Q: What is the difference between DSSS, FHSS, and CRSF on the AT9S PRO? A: DSSS (Direct Sequence Spread Spectrum) and FHSS (Frequency Hopping Spread Spectrum) are RadioLink’s native 2.4GHz RF protocols used with RadioLink receivers including the R9DS. CRSF (Crossfire Serial Protocol) is a serial communication protocol that enables the AT9S PRO to connect to ExpressLRS and other CRSF-compatible receivers. Each protocol requires a compatible receiver — the bundled R9DS uses DSSS/FHSS.
Q: Does the AT9S PRO come in Mode 1? A: The AT9S PRO ships in Mode 2 (left-hand throttle) by default. Mode 1 (right-hand throttle) requires a gimbal swap and is available on request — contact us before ordering if you need Mode 1 configuration.
Q: What does the R9DS receiver support? A: The R9DS supports DSSS and FHSS protocols. It binds natively with the AT9S PRO and is suitable for fixed-wing, helicopter, and multicopter builds. It does not support CRSF — a separate CRSF-compatible receiver is required for CRSF operation.
Q: Can I use the AT9S PRO with my existing receivers? A: Yes, if your receiver supports DSSS, FHSS, or CRSF. The AT9S PRO is not compatible with receivers from other brands operating on proprietary protocols (e.g. Flysky AFHDS, Futaba S-FHSS, Spektrum DSM2/DSMX) without a protocol module.
Q: What platforms is the AT9S PRO compatible with? A: Fixed-wing aircraft, gliders, helicopters, multicopters (drones), RC cars, RC boats, and robots. Platform type is selected in the transmitter’s model setup menu.
Care & Storage
Battery: The AT9S PRO uses an internal rechargeable battery. Avoid deep discharge — charge before storage and do not store in a fully discharged state for extended periods.
Display: Clean the 2.8-inch colour display with a dry microfibre cloth. Avoid liquid cleaners and sharp objects near the screen surface.
Gimbals: Keep gimbal mechanisms free of dust and debris. Calibrate gimbals periodically to maintain stick centre accuracy and endpoint consistency.
R9DS receiver: Mount away from high-current wiring, ESCs, and motors. Secure antenna leads and avoid bending antenna wires sharply at the connector.
Storage: Store in a cool, dry location away from direct sunlight and humidity. The colour display and plastic housing are susceptible to prolonged UV degradation.
Firmware: Update transmitter and receiver firmware via the RadioLink official tools to maintain protocol compatibility and access improvements.
Shipping & Handling
The AT9S PRO transmitter and included R9DS receiver (TX+RX variants) 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 any component 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. DSSS, FHSS, and CRSF protocol support. Control range up to 4km (air, unobstructed). 2.8-inch 16-bit true colour display. Weight: 880g. Default Mode 2; Mode 1 available via gimbal swap. Available in orange and gray colourways. TX only or bundled with R9DS receiver (DSSS/FHSS). Compatible platforms: fixed-wing, rotary-wing, multicopter, car, boat, robot. Specifications sourced from supplier documentation; minor variances between production batches may occur. ±5% tolerance on all stated figures.
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In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
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