SeeSii TinyGTC ZC407 0.1Hz-7GHz Frequency Counter: 4-Inch Tiny Frequency Analyzer with Built-in GPSDO & 32GB Card, High Resolution for ADEV & Gapless Measurement
Seesii TinyGTC ZC407 Handheld Frequency Counter: A cost-effective device with an ultra-wide 0.1 Hz—7 GHz frequency range, delivering precise data for RF development and frequency calibration. It features a built-in GNSS/GPS disciplined oscillator for measurement accuracy, and is equipped with a 4.0-inch HD touchscreen and a Micro SD card slot supporting up to 32GB for full-process data handling and storage
Broad Frequency Coverage: The Frequency Dual Timer/Counter offers an impressive frequency range from 0.1 Hz to 7 GHz, encompassing both ultra-low and high frequencies. It accurately measures ultra-low-frequency and audio signals starting at 0.1 Hz, while the 7 GHz band supports mainstream wireless communications. With its extensive coverage and versatility, this single unit handles diverse full-band testing needs
Dual-Channel Measurement: The device is equipped with two independent input channels (A & B) for simultaneous measurement and comparison, improving test efficiency and reducing errors. Channel A supports 0.1Hz–350MHz, extendable to 7GHz/12GHz with a GHz prescaler. Channel B is identical to Channel A, except that it does not include the GHz prescaler function. Ideal for interference troubleshooting, amplifier gain measurement, lab and field testing
Ultra-High Precision: The TinyGTC features two independent counter/timers with 40 ps resolution, enabling gapless time, frequency, and phase measurements. Advanced reciprocal counting and ADEV stability deliver frequency-independent accuracy of 1e-11~1e-12 per second—providing lab-grade precision for research, development, and testing in TDR, pulse, and long-term stability applications
GPS Synchronized Internal Clock: The TinyGTC incorporates a built-in GNSS/GPSDO that locks to GPS UTC for continuous calibration and long-term high precision. Its disciplined oscillator delivers stable 8kHz–150MHz frequencies as a clock source and accepts external references, including atomic clocks, to fully utilize its 12-bit resolution—designed for precision timing in communication base station testing, distributed sensor networks, and field research
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