On January 2, 2019, the National Broadcasting and Telecommunications Commission (NBTC) of Thailand issued two VHF/UHF Technical Standards:
NBTC TS 1024-2561 for Radiocommunication Equipment Used in Land Mobile Service in the VHF/UHF Frequency Band for Speech and/or Data Communications (Digital).
NBTC TS 1001-2561 for Radiocommunication Equipment Used in Land Mobile Service in VHF/UHF Bands for Speech Communications (Analog).
The new standards entered into force on April 3, 2019.
The main changes between previous and new standards include amendments to channel spacing, conducted spurious emissions, frequency deviation, maximum usable sensitivity, and electrical safety requirements.
These Standards specify the minimum technical characteristics of radiocommunications equipment for land mobile service in the VHF/UHF bands for data and/or digitised speech communications in the 30-960 MHz frequency band with channel spacing of 6.25 kHz and/or 12.5 kHz. This is mainly the radiocommunication equipment used for base stations, mobile stations, and hand portable stations.
The electrical safety requirements for radiocommunication equipment used in land mobile service in the VHF/UHF frequency bands for analogue speech communications shall comply with any of the following standards:
IEC 60950-1: Information Technology Equipment-Safety-Part 1: General Requirements
TIS 1561-2013: Information Technology Equipment-Safety: General Requirements
IEC 62368-1: Audio/video, Information and Communication Technology Equipment-Part 1: Safety Requirements
Type Approval Certificates based on the old standards will still be valid. However, local importers will not be permitted to import or sell VHF/UHF products using channel spacing 25kHz from January 1, 2021 due to migration of the permitted channel spacing from 25kHz to 12.5kHz.
Links to the official documents:
NBTC TS 1001-2561
NBTC TS 1024-2561
The information has been prepared by the GMA Consult Group team.
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