58MHz typical Bandwidth, 240 MSPS Sampling rate

Screenscope measured bandwidth -3dB at 58MHz. At faster timebases, sinx/x interpolation is used and with the 240MSPS sampling rate you get an excellent rendition of fast pulses, approaching the theoretical result of a step function through a 58MHz filter.

Capture length much greater than display

At any time you can stop the scope and pan through the contents of the capture buffer to view the entire record. At low scan rates the capture buffer holds about 5 times more data than is dispalyed. At faster timebases this increases to over 100 times.

X-Y mode

X-Y mode which plots Channel 1 against Channel 2. It will operate up to the full bandwidth of the scope and you can also display the normal channel traces at the same time. X-Y plotting is done by specialized graphics hardware which also performs dot joining and drawing of the pixels straight to screen giving a fast update rate.

Maths

You can perform Multiplication, addition, subtraction or division between any two channel traces and/or memories. For example you can subtract Channel 1 from channel two and see the result in real time as a new trace with its own distinctive colour.

FFT

FFT calculations are carried out by specialized hardware to give a high throughput. The resultant pixels are then drawn by the waveform hardware to screen. With the FFT you can see the make up spectrum of a waveform, or probe the frequency profiles of a filter etc. FFT is also very usefull for seeing the content of power supply ripple on a voltage rail for example of a prototype for example. A responsive FFT make all these jobs much easier.

Unique Chart Recorder mode

There is often a need for a large number of samples to be recorded at slow timebases. At timebases 100mS per division or slower, Screenscope uses the Chart Recorder mode which has the option of logging each run to file on USB memory for data logging applications. You get the benefit of immediately seeing how the test is progressing, just like having a chart recorder hooked up to your data logger. Most other oscilloscopes require the capture of a full buffer before they will display anything, which at slow timebases could be a long time. See Chart Mode

Delayed triggering

Screenscope's trigger can be set up to be over 1 million samples before capture. This provides a delayed trigger capability which works seamlessly with other controls and the measurement markers. You can capture single shot delayed events, or scroll down a repetitive waveform. You can use it to see jitter far from the trigger point, or easily take high resolution time measurements of waveforms for example. See Screenshot: 2 Channel

On Screen Memories

Screenscope has 4 trace memories which can be displayed along with the channel traces. You can copy a channel, FFT or Math to a trace memory with a single click for reference,The memories also record their original context, so you can use the measurement markers on them and you will get correct measurement readouts for the waveform. Along with channel displays, memories can be panned to view their entire content.

The memories are non volatile and will remain permanently until overwritten. See Trace Memory

Save and Load Waveforms

The trace memories can be saved to files on the USB drive. Data is saved as CSV or text which can then be viewed on a computer. Traces previously saved to external USB memory can also be reloaded into the scope for viewing. Saving loading a waveform file is quick.

WYSIWYG Screen shots and saving waveforms to file

Screenscope can also save a bmp file of the entire screen. This gives a WYSIWYG image of the whole instrument showing the scope state at time of capture. This makes it easy to incorporate into reports or presentations.