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Feature: Power:DC11.7-12.9VãMAX 15W GPS ANT Power:DC3.3V 1PPS output:Square wave ,3.3Vpp 10M output:sine wave ,1Vrms (13dBm+-2dB) RS232 output:GPS NMEA signal Accuracy:above than OCXO 2 order of magnitude Size:W*H*D=107*55*122mm(inckuding BNC connect) Accessory:AC110-220-DC12V adpter,5 m GPS ANT What is GPS, what is GPSDO GPS is Global Positioning System. GPSDO is Global Positioning System disciplined oscillatorï¼using the GPS time function to adjust the clock, the clock is more accurate. The standard output time signal of GPS module is generally seconds pulse (1PPS). To control or comparison of ocox frequency, then the output frequency signal correction of ocox error.Because the GPS signal output no accumulated error, long term accuracy is very high, so tame the OCXO accuracy than the atomic clock accurate. GPSDO Application The phone’s base station, used as a reference standard signal source. How to place the GPS antenna? Need to be placed in the outdoor, directly to the sky, not across the glass, because the glass on the 1.5G signal attenuation and great. Antenna face to the sky area, at least there should be 1/5, otherwise the sky area is small, GPS signal is poor, the frequency accuracy is poor,GPS cannot be locked.