STANFORD RESEARCH SR625
The Stanford Research SR625 Frequency Counter is a frequency counting standard for calibrating base stations, transmitters and many other types of communication systems. When combined with the Stanford Research SR620 Frequency Counter, it offers high resolution with the atomic accuracy of a rubidium timebase.
Low Drift, High Accuracy
The SR625 Rubidium Timebase, is used witht he SR620 Frequency Counter and a high-accuracy rubidium oscillator (PRS10). The combination of the SR620 and the prescaler allows direct frequency measurements up to 2 GHz with twelve digits of resolution in a 100 s measurement.
The rubidium timebase ensures excellent short-term stability (
Simple, Portable Operation
The SR625's warmup time is less than ten minutes making it ideal for field applications. An additional back-panel output provides a rubidium stabilized 10 MHz signal which can be used to drive other test equipment (e.g., synthesizers or spectrum analyzers). The standard GPIB and RS-232 interfaces allow for complete control and data acquisition from any laboratory computer. The SR625's performance makes it the standard for remote applications or laboratory calibration.
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