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The 9400A’s two identical input channels are equipped with a<br /><b><font color=#0000FF>I00 megasample/second (megasample/sec), </font></b>8-bit ADC and a 32 kiloword<br />acquisition memory (See Figure 2.1). This dual ADC architecture ensures<br />absolute amplitude and phase correlation, maximum ADC performance for<br />both single and dual channel acquisition modes, large record lengths<br />and high time resolution.<br />The 9400A’s two 32K acquisition memories simplify transient capture by<br />providing very long waveform records that capture waveform features<br />even when trigger timing is uncertain. In addition, very accurate time<br />measurement is made possible by a digitally controlled zoom providing<br />an expansion factor of up to I00 times the time base speed.<br />The 9400A oscilloscope is capable of acquiring and storing repetitive<br />signals at a Random Interleaved Sampling rate of 5 gigasamples/second<br />(gigasamples/sec). An exclusive high-precision time digitizing<br />technique enables measurement of repetitive signals to a <font color=#0000FF>bandwidth of 175 MHz</font> at an effective measuring interval of 200 psec.<br /><br />当然，上面也说了是重复信号，
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