Frequently Asked Questions
Questions Related to Specific Gage Products
Q.
I recently purchased a CompuScope 1450 digitizer and noticed that the analog bandwidth far exceeds the 25 MHz specification. Is this normal? Can it cause a problem?
A. A wider than expected bandwidth is normal on the CompuScope 1450.
Unlike our competition, we always specify our products in a very conservative fashion. This usually means that our products work better than the data sheet claims. Note, however, that we do not guarantee that all of our products will behave better than the datasheets.
This extra bandwidth is not going to cause you any problems, just as a "faster computer" or a "higher speed internet connection" does not have too many negative side-effects.
The only case where you have to be careful is if you were depending on the frequency roll-off of the CompuScope 1450 to act as an anti-aliasing filter.
The work-around is simple enough: use a 25 MHz, BNC-BNC, 7 or 9 pole low-pass filter in line with the CompuScope 1450 input(s).
This will attenuate all higher frequency signals.
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