... - 1MHz, 5 ranges 2) Accurate rate: +/-5% 3) Output impedance: 600Ω 4) Output control: 0, -10, -20, -30, -40, -50dB 5) Sine wave ... ) Distortion rate: 500Hz-50kHz, less than 0.05%, 50Hz-500kHz, less than 0.5% c) Output flatness degree: 1kHz as reference +/-1.5dB ... 6) Output squarewave: a) Range: 10Hz-1MHz b) Output electricity flatness ...