Dongguan Jie Tong Electronic Instrument Co., Ltd. 
 Contact: Mr. Zhou 
 Tel: 13760331089 
 QQ: 1511158498 
 T: 0769-82086182 
 F: 0769-82086182 
 Zip Code: 523710 
 Address: Hung Lai Yuen Road, Zhenjiang Tangxia Garden 3 6F 

 Product Name: Audio Analyzer HP8903B 
 Brand: HP 
 Model: 8903B 
 Product Index: 20Hz to 100KHz 
 Product information: 8903B Audio Analyzer 
 8903B audio analyzer provides unparalleled versatility and provides 20Hz to 100KHz audio tests. 8903B concentrated in one enclosure features low distortion audio source, high-performance distortion analyzer function, frequency counter function, the function of AC voltmeter, DC voltmeter and SINAD meter function. With microprocessor-controlled signal source and analyzer, 8903B can be no additional equipment to automatically run the stimulus response tests, such as: noise ratio and swept distortion. 
 8903B easy to use, just press run many tests one or two buttons. It automatically tune and adjust the maximum accuracy and resolution. Quickly identify input signal analyzer mode in all measures of AC input frequency is calculated and displayed. 

 Low-frequency applications 
 8903B has many features to make more difficult the audio test easier. These include flexible data display, selectable balanced or unbalanced input, insert the filter and automatic notch filter tuning. With the ratio of key, you can use% or dB and direct the establishment of a reference run and the 3dB bandwidth of frequency response testing. A fully balanced input analyzer allows testing of many radio and car stereo power amplifier and the bridge balanced professional audio equipment. 
 There are two slots, and 6 into the filter optional filters to choose from, we are required by international standards Filter and simplify audio measurements. 8903B RMS detector using real mode (the peak factor of all signals 3) accurate measurement of synthetic waveforms and noise. Also average and quasi-peak detector. Accurate distortion measurement typically less than the minimum can be achieved-90dB (0.003%), 20Hz to 20KHz in range. 
 For receiver testing, 8903B and the SINAD a tunable notch filter. Filter automatically tuned to the signal source frequency. 
 System performance 
 Distortion 
 Residual distortion and noise (higher) 
 80KHzBW:-80dB (0.01%) to 17μV, 20Hz to 20KHz 
 500KHz BW:-70dB (0.032%) or 50μV, 20Hz to 50KHz;-65dB (0.056%) or 50μV, 50KHz to 100KHz 
 SNR 
 Frequency range: 50Hz to 100KHz 
 Display Range: 0 to 99.99dB 
 Accuracy: ± 1dB 
 Input voltage range: 50mV to 300V 
 Residual noise (high):-85dB or 17μV, 80KHzBW;-70dB or 50μV, 500KHzBW 

 Source performance 
 Frequency 
 Range: 20Hz to 100KHz 
 Resolution: 0.3% 
 Accuracy: 0.3% of set value