Many scientists are not able to rely on climate-controlled laboratories or stable temperature conditions for their measurement setup. Furthermore they are concerned with the issue of instrument aging and they would also like to have long recalibration intervals thus enabling them to reduce costs. These users should consider selecting the HF2LI-UHS option for their precision critical applications.

The HF2LI-UHS provides a temperature stabilized quartz oscillator with extreme temperature stability, minimal phase noise characteristics, and great performance throughout the aging process. The most relevant specification parameters are better by one order of magnitude.

Key Features

* Extreme temperature stability
* Reliable short term stability
* Excellent aging performance
* Minimal phase noise
* Long-term result reproducibility

Product Selector

Specifications	HF2LI-UHS Option	Standard Oscillator
Reference frequency (nominal)	10 MHz	10 MHz
Reference initial accuracy	±0.15 ppm	±30 ppm
Reference short term stability (over 30 s)	<0.00005 ppm	-
Reference long term stability (aging)	±0.4 ppm/year	±5.0 ppm/year
Reference temperature stability at 23°±5°	±0.03 ppm	±30 ppm
Reference phase noise @ 1 kHz	140 dBc/Hz	-
Reference phase noise @ 100 Hz	130 dBc/Hz	-
Time to reach specification	60	-