Time frequency

Service Items: Crystal oscillator, frequency synthesizer, general counter (frequency meter), microwave frequency meter, harmonic wavelength meter, frequency comparator, phase noise measurement system, stopwatch, electronic millisecond meter, time relay, residual current action protector, quartz crystal frequency standard, frequency meter, stopwatch, timer, clock analyzer, vibrating string frequency reader Time interval measuring instrument, time verification instrument, standard digital clock, time interval generator, GPS receiver, real-time dynamic differential GNSS measurement system, RTK navigation satellite system measurement receiver, etc.