iTest+® clock instruments
GPS Rb-Based Clock ADEV Stability Analyzer (GPS PicoReference)
The GPS PicoReference™ is a low-cost, high-performance clock ADEV (Allan Deviation) stability analyzer, integratiing the PicoTime-1U and a GPS Rb reference all in one single package. It features a cutting-edge 1ps resolution to compare and measure the phase and frequency stability of a clock, such as a Rb, against the built-in GPS/GNSS Rb reference standard. Clock DUT (Device Under Test) input can range from 1 to 30 MHz. It's ideally designed for crystal, rubidium and cesium clock characterization, clock short term stability and ADEV measurements, and clock calibration applications.
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*See or download the full Spec in the Documents page.
|10 MHz & 1PPS
|Accuracy @ shipment||typ. < 5x11|
0 to 40C
< 5E-11/mth, typ. < 3E-11/mth
|Phase noise (10 MHz)
|Holdover||< 1µs/24hr*, < 7µs/week*
*temp profile +2C
|Warm-up time @ 25C||15 min, 5E-10|
|Clock DUT input
10 MHz from built-in GPS/GNSS Rb standard
|< 50w after warm-up > 85-264VAC
|Size (WxHxL)||445x300x44mm (1U) | 17.51x11.81x1.73"|
|Weight||2.2 Kg | 4.85 lbs|
It is typically used in the following applications:
- GPS Rb-based clock ADEV stability measurement & analysis systems
- GPS Rb-based clock calibration systems