Sonifex AVN-GMC series are AES67, RAVENNA and AES-R16 compatible grandmaster clocks that have been designed for use with AoIP (audio over IP) applications. They use a combination of internal GPS receiver and PLL (phase lock loop) to synchronise other nodes within a given network by distributing time packets accurately via AES67, a subset of RAVENNA.
AVN series grandmaster clocks can slave to a separate clock input as an alternative reference source to the internal 50 channel GPS receiver that operates on 1575.42MHz (L1 band). Clock outputs, driven from the physical transceiver, can be used to provide media clocks for external equipment local to the AVN-GMC when it is in both 'master' and 'slave' states. The wordclock can operate at 32/44.1/48/96/176.4/192kHz.