ZHCSJU4I November 2006 – September 2018 CC1020
PRODUCTION DATA.
International regulations and national laws regulate the use of radio receivers and transmitters. SRDs (Short Range Devices) for license free operation are allowed to operate in the 433 and 868 to 870 MHz bands in most European countries. In the United States, such devices operate in the 260 to 470 and 902 to 928 MHz bands.