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Home > Frequency Measurement >  Frequency Counters - Above 200 MHz to 3 GHz > Stanford Research SR625

Used Stanford Research SR625

2 GHz Time Interval / Frequency Counter with Rubidium Timebase
Stanford Research SR625 Image
The Stanford Research SR625 Frequency Counter consists of a frequency counter (SR620), a high-accuracy rubidium timebase (PRS10), and a 2 GHz input prescaler.

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 stablity (<2 x 10-11 Allan variance (1 s)) and long-term drift (<5 x 10-11/month).

The SR625 warm-up 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 performance makes it the standard for remote applications or laboratory calibration.

Stanford Research SR625
 
 
Stanford Research SR625 -- Related Product Links
Frequency Measurement > Frequency Counters - Above 200 MHz to 3 GHz
 
Stanford Research SR625 -- Technical Data
Features Characteristics Options Specifications / Technical Documents
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Features
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Characteristics
Instrument Profile  Benchtop
Number of Display Digits 11 
Maximum Frequency 2 GHz
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Options
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Specifications / Technical Documents
PDF icon Stanford Research SR625 Specifications
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  Stanford Research SR625 2 GHz Time Interval / Frequency Counter with Rubidium Timebase and other Frequency Counters - Above 200 MHz to 3 GHz for sale at Test Equipment Center.  
   
  Stanford Research SR625 products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior to sale. All products include a 90 day warranty from Test Equipment Center to ensure your complete satisfaction.  
   
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  Test Equipment Center sells used Frequency Counters - Above 200 MHz to 3 GHz and Frequency Measurement Products from Stanford Research and many other test equipment manufacturers.  
   
  Request a Quotation for the Stanford Research SR625 from Test Equipment Center now!  
   
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Web Content Last Updated: May 21 2026 8:22AM
 
 
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