A precision low noise four channel GNSS locked frequency reference. The unit is also available as a low noise OCXO based reference or as an ultra-stable atomic based reference. Unit provides NMEA and PPS with 20 ns rms accuracy. Front panel indicators provide self-test status, indication of output impedance mismatch and antenna open/fault to facilitate system operational management.  Option synthesizer allows one channel to be programmed to 1.544, 2.048 or 5 MHz.

• High sensitivity 26 channel GNSS receiver locks in poor signal areas

• 10 MHz frequency reference stability unlocked 50 ppb/year

• Four 10 MHz frequency reference outputs, 1 Vrms into 50 Ohms

• PPS 20ns (rms) accuracy

• NMEA output for time stamping and related functions

• Outputs are all transient and fault protected - fault status for each  channel drives a front panel LED

• Built-in test circuits monitor critical circuit elements

• System status is displayed on the front panel and also drives a relay that is available via a rear panel connector

• Low phase noise    -145 dB/Hz @1 KHz

• Optional synthesized channel provides 1.544, 2.048 or 5 MHz.

Data Sheets

• 4 Channel OCXO 10 Mhz GPS Disciplined Frequency Standard