... it can be connected to optical transmission network (SDH,PDH),digital microwave transmission network, satellite transmission network, etc..High security: ... also has optional AES/EBU digital interface, it can be connected to audio digital equipment at the sampling frequency of 32KHz,44 ... 3%, whole band test0.6%(1KHz,+20 dBm test) <1%( whole band test)Not weighted Signal/noise ratio without >70dB> ...