STANFORD RESEARCH SYSTEMS SR625 CALIBRATION and STANFORD RESEARCH SYSTEMS SR625 REPAIR

 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the STANFORD RESEARCH SYSTEMS SR625 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

Need another Frequency Counter? Shop for Comparable Products on our   new Frequency Counter page

 
   STANFORD RESEARCH SYSTEMS SR625   Description / Specification:    
STANFORD RESEARCH SYSTEMS SR625 Frequency Counter w/ Rubidium Timebase

The Stanford Research SR625 Frequency Counter is a NIST traceable frequency counting standard for calibrating 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. 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 stability (< 2 × 10^-11 Allan variance (1 s)) and long-term drift (< 5 × 10^-11/month). 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. Specifications. Rubidium Timebase; Frequency: 10.000 MHz. One day stability 4 × 10^–11/day. Prescaler; Frequency ratio: 10:1. Input impedance: 50 ohm. Max. input level: +23 dBm. Input freq. range: 50 MHz to 2.2 GHz. Time Interval, Width, Rise and Fall Times; Range: -1000 to +1000 s in +/-TIME mode; -1 ns to +1000 s in all other modes. Trigger rate: 0 to 100 MHz. Display: LSD 4 ps single sample, 1 ps with averaging. Frequency; Range: 0.001 Hz to 300 MHz via comparator inputs. 40 MHz to 1.3 GHz via internal UHF prescalers. RATIO A/B range: 10^-9 to 10^3 . Period; Range: 0 to 1000 s, RATIO A/B range: 10^-9 to 10^3. Phase: Definition: Phase = 360 × (Tb - Ta) / Period A. Range: -180 to +180 degrees, 0 to 100 MHz. Counts; Range: 10^12, RATIO A/B range: 10^-9 to 10^3. Count: Rate 0 to 300 MHz.



 

Standard Calibration $490.00 *
Click on Logo for More Prices
*This is a Web introductory price for one calibration of the STANFORD RESEARCH SYSTEMS SR625. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.


Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Available Gain
Available Gain is the ratio, at a specific frequency, of power available from the output to the power in from the source.

Decibel (dB)
A unit of measurement of power which indicates relative power. A -10 dB means a reduction in power by 10 times, -20 dB means another 10 times or 100 times overall, -30 means another 10 times or 1000 times overall and so on.

Mismatch Uncertainty
Mismatch Uncertainty is caused by re-reflections between one device (the source) and the device that follows it (the load).

Pulse Power
Pulse Power, the energy transfer rate is averaged over the pulse width. Pulse width is considered to be the time between the 50 percent risetime/falltime amplitude points. Pulse power averages out any aberrations in the pulse envelope such as overshoot or ringing.


Please contact us for your STANFORD RESEARCH SYSTEMS SR625 CALIBRATION and/or STANFORD RESEARCH SYSTEMS SR625 Frequency Counter w/ Rubidium Timebase REPAIR

I'm interested in: 
Calibration Type (Select one):
Repair Information:
 Serial Number:

 Is there any physical damage?  
 If yes, describe:


What is the description of the problem?

How/when did the problem start?


 (*) Required Fields    For formal quote please fill in all fields.
Company:
From (Email):*
Contact Name:*
Country:*
Address 1:
Address 2:
City:
State/Territory/Province: *
Zip/Postal Code:
Phone:*

Comment: