For wireless data exchange worldwide, available so-called unlicensed (ISM - Industrial, Scientific, Medical) radio-frequency bands are used. In the RF, on the basis of Decision No. 08-24-01-001 of the State Commission for Radio Frequencies (SCRF) dated 28.04.2008 and Decision No. 07-20-03-001 dated 07.05 2007, the frequency ranges 433.075 - 434.750 MHz and 868,7-869,2 MHz are allocated for these purposes, among others,. These frequencies may be operated without obtaining a special SCRF authorization and entirely free of charge