Before revision: Wireless audio applications 863–865 MHz 864.8–865.0 SRD860 1795–1800 MHz 87.5–108.0 MHz FM SRD860 In Europe, 863 to 870 MHz band has been allocated for license-free operation using FHSS, DSSS , or analog modulation with either a transmission duty cycle of 0.1%DIF < , 1% or 10% depending on the band, or Listen Before Talk (LBT) with Adaptive Frequency Agility (AFA).CEPT/ERC REC 70-03 (22 August 2011)ETSI EN 300 220-1 v2.3.1 (2010-02).
After revision: Wireless audio applications 863–865 MHz 864.8–865.0 SRD860 1795–1800 MHz 87.5–108.0 MHz FM SRD860 In Europe, 863 to 870 MHz band has been allocated for license-free operation using FH SS, DS SS , or analog modulation with either a transmission duty cycle of 0.1%DIF < , 1% or 10% depending on the band, or Listen Before Talk (LBT) with Adaptive Frequency Agility (AFA).CEPT/ERC REC 70-03 (22 August 2011)ETSI EN 300 220-1 v2.3.1 (2010-02).