This determines the highest frequency signal you can measure. For general hobbyist work, aim for at least 50–100 MHz .

When looking for a used unit, prioritize these specifications based on your needs:

Deeper memory allows you to capture longer time windows while maintaining a high sample rate, which is crucial for finding intermittent glitches.

Look for a rate at least 2.5 to 10 times your bandwidth for accurate waveform representation.