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Stanford Research Systems / SRS SR625

Stanford Research Systems / SRS SR625 Universal Frequency Counter with Rubidium Timebase and 2 GHz prescaler
$4995.00 Sorry, Out of Stock

Model: Stanford Research Systems / SRS SR625     Condition: Reconditioned

The SR625 Frequency Counter is a NIST traceable frequency counting standard for calibarating base stations, transmitters and many other types of communication systems. It combines the high resolution and wide variety of features found in the SR620 counter with the atomic accuracy of a rubidium timebase.

Low Drift, High Accuracy

The 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 ´ 10-11 Allan variance (1 s)) and long-term drift (<5 ´ 10-11/month).

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 stablized 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.



Output 10 MHz, 1 Vpp sine wave
Prescaler
Frequency ratio 10:1
Input impedance 50 W
Max. input level +23 dBm
Input freq. range 50 MHz to 2.2 GHz
Input sensitivity See graph
Output  
     Output load 50 W
     Output amplitude 700 mVpp square wave
     Output offset 500 mV
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Stanford Research Systems / SRS SR625

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Our normal service includes 90 day warranty, all standard accessories and manuals, and restoration to "nearly new" condition. Discounts may be offered for reduced service levels. Please let us know which of these you would be willing to consider for the price discount.

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Equipment Offer Sent

Your offer has been sent to our sales department for review. You should expect a response within one business day or less.

Thank you for allowing us the opportunity to assist with your test equipment needs. We hope to earn your business.

Error Sending Request

We are very sorry but an error on the server is preventing your request from being processed.

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