User manual

issued by the Chinese Ministry of Industry and Information Technology (MIIT) on
requirements for NFC:
1. The product complies with the specic clauses and application scenarios specied in the
Technical Requirements for Micropower (Short Distance) Radio Equipment, including the
antenna types and performance, and usage of control, adjustment, and switches.
2. It is forbidden to change the application scenarios or conditions, expand the transmit
frequency range, increase the transmit power (including installing additional RF power
ampliers), or change the transmit antenna without permission.
3. The product shall not cause harmful interference to other legal radio stations, and requests
for protection against harmful interference shall not be proposed.
4. The product shall withstand interference from industrial, scientic, and medical (ISM)
devices that radiate radio frequency energy or other legal radio stations.
5. If the product causes harmful interference to other legal radio stations, stop using it
immediately and take measures to eliminate the interference before continuing to use it.
6. The use of civil and military radio stations such as radio astronomy stations,
meteorological radar stations, and satellite earth stations (including measurement and
control stations, ranging stations, reception stations, and navigation stations) inside aircraft
and in accordance with laws and regulations, relevant national regulations, and standards, as
well as the use of micropower equipment in the electromagnetic environment protection
areas such as airports, shall comply with the regulations of the electromagnetic environment
protection and relevant industry administrative departments.
7. It is forbidden to use model remote controls in an area with a radius of 5,000 meters
centered on the center of the airport runway.
8. Environmental conditions for the temperature and voltage of the micro-power device being
used have been specied.
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