https://www.gzsa.com/standard-study/singapore-imda-srd-technical-specification.html
Singapore – IMDA Published Updated Short Range Device (SRD) Technical Specification-Guangzhou...
Singapore Infocomm Media Development Authority (IMDA) recently published an updated Short Range Devices (SRD) Technical Specification - IMDA TS SRD Issue 1...
short range devicetechnical specificationsingaporeimdapublished