This paper, ased on the results of experimental studies of the influence of forest vegetation on the transmission of digital signals in a radio channel for ZigBee technology, testifies that there is a zone (with a radius of about 50 m), within which the influence of forest on the loss of packet information does not occur, is suggested: 1) an empirical calculation model for the linear attenuation coefficient, at this its numerical value for the frequency 2.4 GHz is estimated as to amF = 0.5215 dB/m, which is practically close to the value amF = 0.5 dB/m. as per Recommendations ITU-R P.833.6., 2) empirical expression determining the dependence of the working attenuation of a radio signal in forest vegetation as the function of the operating frequency and the distance between the transmitting and receiving stations.