The NR3620-CAL frequency reference continously monitors the correction coefficients being applied to the OCXO to compensate for aging and temperature stability. The coefficients are stored in non-volatile memory and in the event of GPS loss, are used to maintain the accuracy of the crystal - GPS loss offset +- 10 ppb.  A good choice for general lab use, Simulcast and test systems. LN option offers lower phase noise.

• Low phase noise OCXO

• GNSS lock indicator and built in self test

• Hold-Over stability of 5 ppb/day, 50ppb/year

• Self-Calibration minimizes frequency transition during GNSS lock to < 10ppb

• Locked accuracy < 4E-11

See demo video on YOUTUBE (NR3620)

• Operates from DC Power in three ranges +- (10 to 18, 18 to 36, 36 to 65) VDC or an AC Adapter

• PPS Accuracy 20 ns rms

• Indicators and signals provide GPS Lock and unity self-test status

• Available in Kit Form (Includes reference, antenna, 50' cable, and power adapter)

GPSDO Kit available, wide input power range (-60 to +60 VDC)

NEED MORE THAN 1 OUTPUT?  See the NR3623-CAL

Data Sheets

• NR3620-CAL M DS 10-20-18 

• NR3620-CAL Rev O 112818 Users Manual