音频电压表 Voltage measurment range 10μV to 300V,unbalanced 10μV to35V balanced Frequency range 10Hzto 100kHz 22.4Hz and 300Hz highpass filters CCIR,CCITT Other filters contained in option UPA-B2 Test inputs floating Balanced two 3-contact female connectors switch able R/L channel,600Ω/20kΩ Unbalance rejection >110dBat 50Hz Unbalanced two BNC female connectors switch able R/L channel,1MΩ Crosstalk attenution R/L >80dB at 20kHz Detector RMS-responding rectifier quasi-peak responding rectifier Level indication 5digits in mV,V dBm mW or W relative indication in % or dB Accuracy RMS(sine wave) ±1%±1digit(30Hz to 20kHz) Inherent noise CCIR,weighted(QPK) <10μV(unbalanced,600Ω) <20μV(balanced,600 Ω)
失真测量 (with Generator Option UPA-B6) Signal frequencyrange 30Hz to 100kHz Display range 0 to 120dB Accuracy(S/N ≤60dB) ±1dB Inherent S/N ration ±85dB or <20μV DC voltage measurment 0 to ±300V Test inputs see AF level meter but unbalanced only Accuracy ±1%±1digit Frequency counter Frequency measuremnt range 8Hz to 250kHz Required input vltage >10mV (S/N ratio>20dB) Accuracy ±0.005%±1digit Phase measurement Display range 0 to 180° Resolution 0.1°
选件
发生器 option UPA-B6 (UPA3 标配) Frequency range 10Hz to 100(110) kHz Accuracy ±0.01% Outputs like test inputs of AF level meter Unbalance rejection >80dB at 1kHz (bal,Vout >1) Crosstalk attenuation L/R >80 dB at 20kHz Output impedance 30Ω/200Ω/600Ω select able Output voltage no load 0.1mV to 12.4V Load impedancemax.load >200Ω/54mA Output circuit short-circuit-proof switched off incase of external feeding Inherent distortion(Vout>300mV) <-80 dB(30Hz to 20kHz) Frequency response(fer.to 1kHz) ±0.5% (10Hz to 20kHz)
失真表 option UPA-B8 (UPA3 标配) Frequency range fundamental 10Hz to 100kHz Frequency adjustment automatic or by frequency preselection Display modes toal harmonic distortion THD,selective distortion d2 to d9 SINAD,level Display range -120 to 0dB(distortion) Accuracy THD or SINAD,20Hz to 20kHz ±1dB(harmonics up to 100kHz)
Wow and flutter meter(option UPA-B9) Measurement method IEC,NAB,JIS,2-sigma Measurement range 0.003 to 5% Accuracy ±10% Amplitued variation meter Frequency range 2 to 20kHz Variation Level 0to 20dB Frequency 0.1 to 300Hz Accuracy ±0.25dB (0 to 3dB)
Special filter(option UPA-B2) A-filter to DIN IEC 651 Bandstop filters pilot-tone trap with 15kHz lowpass filter line-frequency trap with 13kHz LP(both filters can be combined with A=filter) Band pass jilters standard frequencies 315Hz/1/3.15/6.3/10/12.5kHz additionally adjustable fixed center frequencies of 8/9/10/11/12/13/14/15/15.5/1/17/18/19/20/25kHz adjustable passband frequenciesfrom 23Hz to 25kHz tele phon band pass filter 320Hz to 3.4kHz band pass filter 2to 10kHz Lowpass filter 350Hz/1.04/3.5/7/10.4/15kHz
Remotecontrol IEC 625-1(IEEE 488 )control of all instrument functions
