Source GPSDO clock reference 10 Mhz OCXO DX Patrol

Datasheet GPS-DO reference clock 10Mhz DXPatrol

GPSDO reference: 10,000,000 Hz
Compatible satellite receiver: GPS, Galileo and Glonass
3 outputs 10MHz 1.5vpp ~ 7dBm
50% duty cycle
Phase noise at 1 Hz -80dBc / Hz
Phase noise at 10 Hz -120dBc / Hz
Phase noise at 1 KHz -145dBc / Hz
Phase noise at 10 KHz - 150dBc / Hz
Second harmonic <51 dBs
Third harmonic <56 dBs
Start-up time: About 5 minutes
Operating temperature range: 0°C to 75°C
Operating temperature: 50°C (OCXO)
Supply voltage: 8V to 15V DC (power supply not included)
Power connector: Standard 5.5mm jack
Current consumption: 600mA on ignition, 270mA after OCXO locking (5 minutes)
GPS acquisition indication by LED (green LED = GPS signal and OCXO signal acquired, red LED awaiting acquisition
Dimensions: 84 x 71 x 25 mm

The U-Blox GPS receiver integrates a Flash memory programmed so that the synthesizer generates a frequency of 1000 PPS on its output.

Due to the very high jitter of the modules, signal sharpness is improved with a Schimtt trigger to achieve a clean square wave at 1 kHz.

This GPSDO is programmed in Hotstart mode. This means that even without an antenna connected, or a GPS signal received, the GPSDO will still have a fair and precise 10Mhz signal on its outputs.

Note that during normal operation of the OCXO oscillator, it takes approximately 5 minutes for it to reach its normal operating temperature of approximately 50°C. It is quite normal for the GPS-DO box to heat up during use.

* Stability depends on various factors including temperature change.

Short term stability 0,05 PPB/second
Temperature stability : 10 PPB
Stability under load: 2 PPB
Aging : 0,5PPB/day, 100PPB/year, 0,4 PPM 10years