How to assemble an ARF RC aircraft step by step
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
MT12 Surface Radio Controller
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
MT12 Surface Radio Controller is a RadioMaster product intended for pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
Key Advantages
- Organized for pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models.
- Part of the MT12 surface radio platform.
- RF/protocol context: ExpressLRS / ELRS, 2.4GHz, 4-in-1 Multi-Protocol, EdgeTX.
- Compatibility note: Compatible with RadioMaster MT12 platform where applicable.
- Multiple variants are documented for easier matching to the required setup.
- Includes local product imagery and structured specifications for customer comparison.
Core Specifications
- Product Code: HP0157.0067
- Product Family: MT12 surface radio platform
- Protocol / RF: ExpressLRS / ELRS, 2.4GHz, 4-in-1 Multi-Protocol, EdgeTX
- Channels: 32 channels, 3 channels, 5 channels
- Compatibility: Compatible with RadioMaster MT12 platform where applicable
- Available Variants: ELRS / FCC; ELRS / LBT; 4IN1 / FCC; 4IN1 / LBT
- Battery: 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included)
- Dimensions: 26.1*18.5*13.0 mm; 31.0*18.5*13.0 mm
- Weight: 480 grams; 4.2 grams; 5.7 grams
- Item: MT12 Surface Radio; ER3C-i 2.4GHz ELRS PWM Receiver; R85C Receiver
- Physical dimensions: 177.8*118.4*207.8mm
- Operating frequency: 2.400GHz-2.480GHz
- Internal RF Options: 4-in-1 multi-protocol / ELRS 2.4GHz
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Servo selection: torque, speed, gears and voltage
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
How to balance an RC aircraft and find the correct CG
One of the most important setup guides: find the CG, install the flight battery, balance the aircraft and avoid nose-heavy or tail-heavy surprises.
Mandatory pre-flight checks for safer RC flying
A repeatable inspection routine for control direction, radio range, failsafe, battery, fasteners, propeller, CG and field readiness.
How to perform the first test flight of an RC aircraft
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.0067 |
| All Variant SKUs | HP0157.0067, HP0157.0067-LBT, HP0157.0068, HP0157.0068-LBT |
| Available Variants | ELRS / FCC; ELRS / LBT; 4IN1 / FCC; 4IN1 / LBT |
| Product Type | MT12 Radio |
| Product Family | MT12 surface radio platform |
| Application | pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models |
| Item | MT12 Surface Radio; ER3C-i 2.4GHz ELRS PWM Receiver; R85C Receiver |
| Weight | 480 grams; 4.2 grams; 5.7 grams |
| Dimensions | 26.1*18.5*13.0 mm; 31.0*18.5*13.0 mm |
| Compatibility | Compatible with RadioMaster MT12 platform where applicable |
| Protocol / RF | ExpressLRS / ELRS, 2.4GHz, 4-in-1 Multi-Protocol, EdgeTX |
| Channels | 32 channels, 3 channels, 5 channels |
| Display | 128*64 Monochrome LCD |
| Charging | Built in USB-C Charging |
| Battery | 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included) |
| Firmware | Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER3C-i |
| Frequency range | 2400-2483.5Mhz |
| Power supply | DC 4.5 - 8.4V |
| Antenna type | Built-in high-sensitivity ceramic antenna; high-sensitivity 2.4G antenna |
| Output channel | 3CH PWM; 5CH PWM |
| Internal RF Options | 4-in-1 multi-protocol / ELRS 2.4GHz |
| Supported protocols | Module dependent |
| Operational voltage | DC 6.6-8.4V |
| Operational current | 160mA for 4in1 / 320mA for ELRS |
| Operating system | EdgeTX |
| Control channels | 16 as standard, ability for expansion 32 Channels (4in1 only) |
| Wireless protocol | ExpressLRS 3.3.0 pre-installed |
| Telemetry power | 10mW; 100mw / 20dbm |
| Battery voltage detection range | DC 4.0 - 35V |
| Physical dimensions | 177.8*118.4*207.8mm |
| Operating frequency | 2.400GHz-2.480GHz |
| Module bay | Nano size (RadioMaster Ranger Nano Module / RadioMaster RM 4in1 module / TBS Crossfire Nano module) |
| Firmware Upgrade method | Via USB or SD card |
| Wheel and Trigger sensor | Hall-effect |
| Support protocol | D8/D16/SFHSS |
Tags: RadioMaster, HP0157.0067, MT12 Radio, RC radio