Low-cost Frequency Counter from Saelig

By DE Editors

PFM3000 from Saelig Co. Inc. (Pittsford, NY) is a new handheld frequency counter that can measure signals from below 3Hz to above 3GHz, placing it in the same low- cost category as handheld multimeters.

Despite its compact size and low cost, PFM3000 uses the reciprocal counting measurement technique to achieve high measurement resolution at all frequencies. The system yields up to 8 digits of resolution per second of measurement time, and can resolve low frequencies to 0.001mHz (0.000001Hz).

Range A covers from below 3Hz to above 125MHz via a high- impedance input. Range B covers from below 80MHz to above 3000MHz via a 50ohm input. Sensitivity is typically better than 15mV across the range, rising to 25mV at 2.5GHz and 50mV at 3GHz.

Period Measurement is provided for signals in the range from 8ns to 330ms. A selectable low-pass filter is provided to reduce the noise on lower frequency signals. A hold key allows readings to be frozen on the display whenever required. Low power consumption circuitry ensures long battery life.

Made by one of Europe's test equipment manufacturers, Thurlby Thandar Instruments, the PFM3000 is available now at $325 from Saelig Co. Inc.

Sources: Press materials received from the company and additional information gleaned from the company's website.