RadioMaster TX16S MK3 Max Radio Controller (ELRS Dual-Band)

The RadioMaster TX16S MK3 Max is a full-size ExpressLRS radio transmitter built on the established TX16S layout, running dual-band Gemini ExpressLRS with two LR1121 transceivers so a single radio covers both 2.4GHz and 900MHz sub-GHz receiver links. It suits pilots who want the familiar TX16S control layout with premium materials and Hall-effect gimbals.

Key features

• Dual-band Gemini ExpressLRS (2 x LR1121) switches between 2.4GHz and 868/915MHz sub-GHz links from one radio, covering different builds and regional band plans.

• AG02 CNC-aluminium quad-bearing Hall sensor gimbals give contactless stick sensing with a premium, low-wear feel.

• 5-inch, 800 x 480 IPS touchscreen with an STM32H7 processor runs EdgeTX (3.0 or newer) for fast menu navigation and model set-up.

• Runs on two 18650 Li-ion cells, a 21700 5000mAh cell, or a 2S 7.4V LiPo pack (batteries not included), with a JR-compatible module bay for external RF modules.

• Built-in motion sensor, digital audio, a microSD card slot and internal flash storage support advanced model programming and telemetry callouts.

• Available in Silver, Red, Gold and Blue gimbal-trim finishes.

Specifications

• Radio firmware: EdgeTX 3.0 or higher

• RF module: Built-in ExpressLRS, 2 x LR1121

• Frequency: 2.4GHz and 868/915MHz sub-GHz

• Channels: Up to 16

• Gimbals: AG02 CNC Hall sensor

• Display: 5in IPS touchscreen, 800 x 480

• Operating voltage: 6.6-8.4 V DC

• Working current: 1.1 A at maximum RF output

• Storage: 4 GB onboard flash plus microSD slot (card not included)

• Module bay: JR-compatible

• Dimensions: 200 x 178 x 88mm

• Weight: 864g without battery

Use the 2.4GHz link for most builds, or switch to 868/915MHz where local rules or receiver hardware call for it; the module bay also accepts other JR-format RF modules if you need a different protocol later.