1,the output channel:Step can be changed with100KHz between80-108MHz Output Level:≥120dBµV 2,Output Level Range:0 -20dB 3,RF output impedance:75Ω 4,Band spurious suppression:>60dB 5,frequency accuracy:≤±10KHz 6,Loss of the RF output return:<±10dB 7,FM Depth:75KHz 8,Audio Distortion:≤2%(±60KHz) 9,S/N:≥50dB 10,power supply:AC220±10%/50Hz 11,power:≤20W 12,working temperature:5 40° 13,output connector:F