: July 23, 2009


Saelig Introduces 3 GHz counter with USB control
- allows remote control and read-back.



Pittsford, NY:  TF930 is a new 3 GHz universal, high sensitivity frequency counter with a range from 0.001 Hz to over 3000 MHz, which incorporates a USB2.0 interface for remote PC control and read-back. Using an internal high-quality TCXO timebase, TF930 is stable to within ±1 part in 106 over the full temperature range, with a very low aging rate. Its short warm-up time allows accurate measurements to be made even under portable conditions, powered by its internal NiMH batteries.

TF930 can measure frequency, period, pulse width, duty cycle and frequency ratio, as well as event counting (totalizing). For frequency, period and ratio functions the instrument uses a reciprocal counting technique to provide high resolution at all frequencies. Eight significant digits of the result are produced in a one second measurement time, nine digits in 10 sec and ten digits in 100 sec with a granularity of less than two counts in the least significant digit.
For frequencies up to 125 MHz, TF930’s input impedance is configurable as 1 Megohm or 50 ohm, AC or DC coupled, and 1:1 or 5:1 attenuation. The threshold is fully variable and the active edge can be positive or negative.
TF930 operates from internal rechargeable NiMH batteries, which typically give 24 hours’ operating life. The universal AC charger supplied will recharge the batteries in less than 4 hours, and can be used for continuous AC operation. The instrument can also be powered from a standard USB port alone.

Made by one of Europe’s leading test equipment manufacturers - Thurlby Thandar Instruments – the compact and lightweight (10.25” x 3.5” x 9.25”; 2lb) TF930 is available now from now from Saelig.



Hi-Res Image


Order on-line HERE