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HamExpo 2022
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Reference GPSDO V2...
DX Patrol's new version GPSDO V2 DXPatrol (GPS...
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Reference GPSDO V2 DXPatrol 10 Mhz OCXO with screen
No review at the momentDX Patrol's new version GPSDO V2 DXPatrol (GPS Disciplined Oscillator) features an OLED display to show local geographic coordinates, high precision UTC time, clock and number of satellites.
Equipped with a GPS receiver (U-Blox 7N) and a very high stability 10 Mhz OCXO oscillator (0.05ppb *), disciplined thanks to GNSS, GPS, Galileo or Glonass satellite signals.
In a metal case, powered from 8V to 15V and with 3 10Mhz outputs with SMA female connector and an output power of 7dBm (~ 5mW).
Supplied with: 1 DX Patrol GPS-DO V2, with GPS antenna and cable, without power supply (optional USB Ripcord 9V or 12V cable ), manual to download below (in English).
Download
Data sheet
GPS-DO reference: 10,000,000 Hz
Compatible satellite receiver: GPS, Galileo and Glonass
3 outputs 10MHz + 1 (square wave)
Power: ~ 7dBm (5mW)
RF connector: SMA female
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 14V DC (supplied without power supply - optional)
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
A GPSDO is a device used to ensure stability and precision in the microwave domain, which requires high precision, such as for example for amateur radio activity on the QO100 satellite .
This GPS-DO clock reference can also be used as a synchronization source, via satellite time signals, to provide positional accuracy, for navigation and GPS applications.
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, the sharpness of the signal is improved with a Schimtt trigger to obtain a clean square wave at 1 kHz.
This GPS-DO 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.
During normal operation of the OCXO oscillator, it takes approximately 5 minutes for it to reach its nominal operating temperature of approximately 50 ° C. It is quite normal for the GPSDO DXPatrol box to heat up when in 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 10 years
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