Model: DSO 5202-P
Real Time sample rate: 1GSa/s
Display: Large (7.0-inch) color display
Innovative on screen HELP system
Sample Rate Range: 500MS/s--1GS/s
Record Length: 40K
FFT:Windows: Hanning, Flatop, Rectamgular, Bartlett, Blackman; 1024 sample point
Low Frequency Response (-3db):≤10Hz at BNC
Trigger mode: Auto, Normal, Single
Trigger type: Edge, Video, Pulse, Slope, Over time, Alternative
USB host and device connectivity, standard (note: USB port is NOT intended to be used to recharge cell phones or other usb charged devices.)
Multiple automatic measurements
Four math functions, including FFTs standard
Provides software for PC real-time analysis
Sampling rate and adc of oscilloscope
Among the three performance indexes of the oscilloscope, the analog front end determines the bandwidth, and the analog-to-digital converter (ADC) is the most important link affecting the sampling rate. ADC is the core device of the digital oscilloscope, among which the most critical indexes are the sampling rate and the effective ADC bits. The sampling rate of ADC directly determines the digital bandwidth of oscilloscope, that is, how high frequency signal can be effectively collected and displayed.
The sampling rate of A/D converter cannot be increased indefinitely. R&S has the leading single-core 10Gs/s sampling rate A/D converter in the oscilloscope market.In order to achieve A higher sampling rate, many companies have adopted the interleave sampling technology, that is, multiple low-speed A/D parallel combination of multiple high-speed multi-core A/D.The problem with this technique is the phase error of the signal.To correct this error, most oscilloscope manufacturers use DSP correction technology.However, it takes time to correct DSP, and this correction reduces the waveform acquisition rate of oscilloscope.
Oscilloscope chooses appropriate storage depth, also called record length
Storage depth is a measure of how many sampling points an oscilloscope can store. If you need to capture a pulse string continuously, you need the oscilloscope to have enough memory to capture the entire event. The required storage depth can be calculated by dividing the length of time to be captured by the sampling rate needed to accurately reproduce the signal.
Storage depth is closely related to sampling rate.The depth of storage you need depends on the total time span to be measured and the required time resolution.
Modern oscilloscopes allow users to select record lengths to optimize the details of some operations. Analysis of a very stable sinusoidal signal requires only 500 points of record length;But to parse a complex stream of digital data, you need a million points or more of record length.
Capturing the effective trigger of the signal in the right position can usually reduce the storage capacity of the oscilloscope.