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tektronix tds784d 1ghz 数字示波器|4通道|采样率4gs/s|二手示波器
购买此款示波器可享有赠送 500mhz 的探头两条，电源线一条，说明书（电子档），以及半年免费保修，终身技术支持等优惠-
tds784d技术参数：
带宽：1ghz 采样速率：4gs/s 通道数：四通道
tektronix tds784d oscilloscope, digital: 1ghz, 4gsa/s, 4 channel (stand alone)
the tektronix tds784d oscilloscope is a graph-displaying device – it draws a graph of an electrical signal. in most applications, the graph shows how signals change over time: the vertical (y) axis represents voltage and the horizontal (x) axis represents time. the intensity or brightness of the display is sometimes called the z axis.
the tektronix tds784d oscilloscope''s simple graph can tell you many things about a signal, such as: the time and voltage values of a signal, the frequency of an oscillating signal, the “moving parts” of a circuit represented by the signal, the frequency with which a particular portion of the signal is occurring relative to, other portions, whether or not a malfunctioning component is distorting the signal, how much of a signal is direct current (dc) or alternating current (ac) and how much of the signal is noise and whether the noise is changing with time.
| form factor | benchtop |
| bandwidth | 1 ghz |
| number of channels | 4 ch |
| simultaneous channels | 4 ch |
| simultaneous maximum sampling rate/ch | 2 gsa/s |
| one ch. only max. sampling rate | 4 gsa/s |
| max. single shot bandwidth | 1 ghz |
| max. record length | 50000 pt/sec |
| min. vertical sensitivity | 1 mv/div |
| maximum vertical sensitivity | 10 v/div |
| rise time | 350 ps |
| number of bits | 8 bits |
| input impedance | 1 mohm |
| input impedance (alternate) | 50 ohm |
| input coupling | ad,dc,gnd |
| maximum input voltage | 400 vrms |
| main time base - lowest | 200 ps/div |
| main time base - highest | 10 s/div |
| timebase accuracy | 0.0025 % |
| trigger source | external,internal |
| trigger modes | auto,edge,logic,normal,pulse,single |
| minimum trigger holdoff | 16 ns |
| minimum glitch trigger | 1 ns |
| display type | color lcd |
| display size | 17.78 cm |
| display modes | dot,persistence,vector |
| user interface | proprietary |
| ports to peripheral devices | centronics,gpib,rs232 |
| test pattern storage | 10 patterns |
| novram data storage | yes |
| data storage type | fdd |
| programming language | windows |
