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The Radiolink AT9S Pro is a 2.4 GHz, 12-channel transmitter for drones, airplanes, helicopters, cars and boats. It uses advanced QPSK modulation with a 5.0 MHz bandwidth and combines DSSS and FHSS spread spectrum for a stable link, with a control range of up to 3.4 km (2.1 miles) in the air.
Signal output can be PWM, SBUS, PPM or CRSF, which gives you a choice of connections for different receivers and flight controllers.
The radio has an LCD for configuration, programmable mixing and failsafe functions, audible alerts and vibration feedback, and it supports telemetry when used with the PRM-03 module. It also connects to a simulator and offers a wireless trainer mode, which is handy for teaching a new pilot or for practising at home.
Its operating voltage is 3.0 to 10 V with a current draw of 30 to 45 mA at 5 V. The transmitter weighs 647 g and the receiver weighs 14 g. Because this is a large, weighty radio, use the strap and handle it with care.
Hobbyists who want a capable 12-channel radio for planes, cars and boats, and pilots who want a telemetry-ready system without moving to a high-end brand.
Spend time on the mixing and failsafe pages before your first flight, name your models clearly and set alarms for low transmitter voltage. The wireless trainer mode lets an instructor take over control from a student, and the simulator connection lets you practise without risking a model.
Twelve.
Up to 3.4 km in the air.
PWM, SBUS, PPM and CRSF.
Yes, with the PRM-03 module.
The transmitter weighs 647 g and the receiver 14 g.
| Brand | Radiolink |
|---|---|
| Channels | 12.000000 |
| Frequency | 2.4 GHz |
| Operating Range | 3.4 km |
| Weight | 647.000000 g |
| Selling unit | PCS |
