Precision GPS Reference Clock

GPSDO

Leo Bodnar Electronics

GPS-locked precision frequency reference
450 Hz to 800 MHz output.

More info:
http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=234

Mini Precision GPS Reference Clock

GPSDO

Leo Bodnar Electronics

Mini Precision GPS Reference Clock
GPS-locked precision frequency reference
400 Hz to 810 MHz output mini version.

More info:
http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=301

GPS Disciplined Oscillator

 

BG7TBL 10MHz

A GPS clock, or GPS disciplined oscillator (GPSDO), is a combination of a GPS receiver and a high-quality, stable oscillator such as a quartz or rubidium oscillator whose output is controlled to agree with the signals broadcast by GPS or other GNSS satellites.
GPSDO work well as a source of timing because the satellite time signals must be accurate in order to provide positional accuracy for GPS in navigation. These signals are accurate to nanoseconds and provide a good reference for timing applications.

More info. GPSDO BG7TBL
https://www.eevblog.com/forum/testgear/bg7tbl-gpsdo-master-reference/