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Introduction
Thank you for purchasing the RadioMaster TX12MKII 2.4g remote control system. The system is versatile and
can be used by beginners and professionals. In order to ensure the correct and safe use of this product,
please read this manual carefully before use. Due to constant improvements in software and hardware this
manual may change over time. The information contained in this manual is subject to change without notice.
Visit our website for the most up to date information.
TX12MKII remote control is suitable for all types of fixed-wing aircraft, gliders, helicopters, cars, boats,
robotics, multi-rotor aircraft and anything else you might create, if you can build it RadioMaster can control it.
The TX12MKII uses a powerful operating system called EdgeTX, for more information visit the links below.
-The RadioMaster team.
Safety Information
Many remote-control models are equipped with powerful motors and sharp propellers. When using or
maintaining models, proceed with caution. When performing assembly or maintenance, make sure to
disconnect the power to the model and remove the propellers.
Do not operate the TX12MKII remote control system under the following conditions:
• In severe weather or strong windy conditions, such as rain, hail, snow, storms or electromagnetic environ-
ments.
• In any situation where visibility is limited.
• In areas where people, property, high-voltage power lines, public roads, vehicles or animals may be present.
• If you feel tired or unwell, or under the influence of drugs or alcohol.
• If the remote control or model seems to be damaged or not working properly.
• In areas with high 2.4GHz interference or where 2.4GHz radio is prohibited.
• When the radios battery voltage is too low to be used.
• In areas where local regulations prohibit the use of aviation models.
Manual and firmware download
TX12MKII is pre-installed with factory approved EdgeTX firmware. To download the latest software manual,
please visit the RadioMaster website: https://www.radiomasterrc.com
To download the latest firmware for your TX12MKII remote control, please visit the EdgeTX website:
https://www.Edge-tx.org
Important！
ANTENNA: Install the provided antenna in the top of the radio BEFORE installing batteries and turning on the
radio. DO NOT operate the radio without the antenna installed and the internal RF module powered on. Doing
so will damage the internal RF module and will not be covered under warranty.
FIRMWARE: The TX12MKII is pre-installed with the most stable firmware at the factory at time of release.
please only attempt to update the firmware if you are confident in the process. Incorrect firmware updates
may cause the remote control to become inoperable.
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