A hand-held tester time synchronization

A hand-held tester time synchronization, comprising a signal pre-processing unit, the verification unit receives the statute, the main control unit, a measuring unit and a man-machine interface means further comprising PPS / PPM / PPH pulse signal decoding unit, IRIG-B (AC / DC) TTL / 422 signal decoding unit time, RS232 / 485 times the frequency of the signal decoding unit, when the device is granted the alarm information decoding unit, and a synchronization signal output controllable automatic message parsing unit. The present invention uses the integrated measuring technology. Instrument set frequency standard, the measurement data of the calculation and comparison, the test results show that output functions stored in one complete comprehensive test program comprising PPS / PPM / PPH accuracy, the rising edge of the second pulse, the accuracy of the serial data, the pulse signal accurately degree, IRIG time series packets accuracy, correctness serial format Statute, PTP and NTP / SNTP synchronization accuracy, serial port times sending delay measurements and other tests. The present invention is applicable to the field time intelligent substation synchronization test.