iTest+® clock instruments


Clock ADEV Stability Analyzer (PicoTime-1U)

The PicoTime-1U is a low-cost, high-performance clock ADEV (Allan Deviation) stability analyzer. It features a cutting-edge 1ps resolution to compare and measure the phase and frequency stability of a clock, such as a Rb, against an external GPS/GNSS reference standard. It's ideally designed for crystal, rubidium and cesium clock characterization, clock short term stability and ADEV measurements, and clock calibration applications.

RELATED PRODUCTS: See our product brochure to quickly compare other product features and performance.

Key Features*

*See or download the full Spec in the Documents page. 

Specifications Standard Options
Clock DUT input
Reference input
1-30 MHz
10 MHz from GPS/GNSS 
Tempco (phase time)
< 20ps⁄C
15 to 30C
Power (operating)
< 10w after warm-up > 85-264 VAC  
Size (WxHxL) 445x300x44mm (1U) | 17.51x11.81x1.73"
Weight 3.5 Kg | 123.4 lbs


It is typically used in the following applications:

  • Clock ADEV stability measurement & analysis systems
  • Clock calibration systems



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