Here's a quick look at the real expense -in data as well as dollars-of signalaveraging devices, including our averager, the Model 7100 Data Retrieval Computer. WEDl you pay for less than excellent resolution? You will in any signal average that has a minimum dwell-time per data point of more than 39 microseconds. Resolution, after all, is a function of the number of data points that can be placed within a region of interest. Our Model 7100 Data Retrieval Computer (DRC) uses all 400 of its data points for signals occurring within as little as 15.6 milliseconds. The DRC, therefore, gives much better resolution than averagers that use only a fraction of their data points to represent the signal of interest.Will you pay for less than total versatility? You will in any averager that doesn't have the built-in capability-without add-on options -for interval-and time-histogram analysis, as well as transient-averaging. The DRC will operate in any of these-three modes, which are selected on a front-panel switch.Will you pay for less than maximum input sensitivity? You will in an averager that needs a pre-amplifier to accept low-amplitude input signals. The DRC has 20-millivolt input sensitivity. So, most of the time, the DRC requires no added pre-amps.
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