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On the suitability of the 433 MHz band for M2M low‐power wireless communications: propagation aspects - Tuset‐Peiró - 2014 - Transactions on Emerging Telecommunications Technologies - Wiley Online Library
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Renkforce Funksender 4-Kanal Frequenz 433 MHz 12 V Reichweite max. (im Freifeld) 40 m - Conrad Electronic Schweiz