Specifications
Measurement scope	Voltage: 1mV to 300V with 12 ranges               1mV, 3mV, 10mV, 30mV, 100mV, 300mV dB:    -80 to +50dB dBm: -80 to +52dBm           (0dBm=1mV, 600Ω)
Measurement mode
Error	Measurement below 1KHz: within 3% of full scale
Frequency response	5Hz to 1MHz: +/-10% 10Hz to 500KHz: +/-5% 20Hz to 200KHz: +/-3% 30Hz to 100KHz: +/-2% with 1KHz readout as reference point
Input impedance	10MΩ+/-5%, shunt capacitance less than 45pF
Maximum input voltage	500V (DC+AC peak value): LV to 300V range 100V (DC+AC peak value): LmV to 300mV range
Stability	Influence resulted from change of 10% power supply voltage is +/-5% of full scale.
Survival voltage	In 1mV range, less than 200uV when the input end is short-circuited.
Cross talk	Independent: ≤80dB when one end is connected with a 600Ω load. Harmonic: ≤50dB when one end is connected with a 600Ω load.
Gain	60dB
Output voltage	1Vrms +/-20% when in full scale
Output resistance distortion	600Ω +/-20% at 1KHz less than 1% for full scale
Signal to noise ratio	Over 30dB in 0.3mV range
Frequency response	5Hz to 500KHz: within +/-3%
Nominal operation temperature/humidity	10ºC to 35ºC/within 85%RH
Power supply	220V/110V +/-10%; 50Hz/60Hz
Dimensions	128(W) x 190(H) x 239(D) mm