Frequency counter products
- Technology
- Frequency counters
- Partner
- Stanford Research Systems
The SR620 time interval counter performs virtually all of the time and frequency measurements required in a laboratory or ATE environment. The instrument’s single-shot timing resolution and low jitter make it the counter of choice for almost any application.
The SR625 frequency counter with Rubidium timebase 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.
For range details, please see the catalogue in the downloads section below.
Range features
A high level overview of what this range offers
SR620
- 25 ps single-shot time resolution
- 1.3 GHz frequency range
- 11-digit frequency resolution (1 s)
- 0.001° phase resolution
- Statistical analysis & amp; allan variance
- Graphical output to X-Y scopes
- Hardcopy to printers and plotters
- GPIB and RS-232 interfaces
- Optional ovenised timebase
SR625
- Rubidium atomic timebase
- 2 GHz pre-scaler input
- 11-digit frequency resolution (1 s)
- 10 minute warm-up period
- 10 MHz Rb timebase output
- Statistical analysis & allan variance
- Hardcopy to printers and plotters
- GPIB and RS-232 interfaces
