TF930

AIM & THURLBY THANDAR INSTRUMENTS TF960 TF930 PFM3000 High performance 3GHz and 6GHz frequency counters PFM3000 - 3GHz low-cost handheld frequency counter TF930 - 3GHz bench/portable universal counter with USB TF960 - 6GHz bench/portable universal counter with USB tti-test.com aimtti.co.uk aimtti.usTF930/960 - 3GHz and 6GHz bench/portable universal counters with USB 0.001Hz to > 3000MHz or 6000MHz frequency range High impedance DC coupled input up to 125MHz Frequency, period, pulse width, duty cycle, frequency ratio Variable trigger threshold and switchable attenuator and event counting modes Large 10 digit LCD display with annunciators High performance temperature compensated timebase Operation from built-in rechargeable batteries Reciprocal measurement technique gives superior resolution Low power consumption gives up to 24 hours operation High input sensitivity over the full frequency range Remote control and readback via USB interface High measurement accuracy The TF930 and TF960 use a high quality temperature compensated internal Battery operation when needed frequency reference (TCXO) which has a low aging rate and is stable to within The TF930 and TF960 operate from internal rechargeable NiMH batteries 1ppm over the full temperature range. which give typically 24 hours operating life. Its short warm-up time allows accurate measurements to be made even under The universal AC charger supplied will recharge the batteries in less than 4 portable battery powered conditions. hours and can be used for continuous AC operation. An External Reference input is provided and changeover from the internal The instruments can also be powered from a standard USB port. timebase is automatic when an external reference standard is connected. High resolution For frequency, period and frequency ratio functions the instrument uses a reciprocal counting technique to provide high resolution at all frequencies. Eight significant digits of answer are produced in a 1 second measurement time, nine digits in 10s and ten digits in 100s with a granularity of less than 2 counts in the least significant digit. Flexible signal conditioning Input A has configurable coupling (AC or DC), input impedance (1MW or 50W), attenuation (1:1 or 5:1), threshold (fully variable) and active edge, and can be used for frequencies in the range 0.001Hz to >125MHz. Input B is a nominal 50 W input for frequencies in the range 80MHz to > 3GHz. Input C (TF960 only) uses a standard N connector and has a nominal 50 W input for frequencies in the range 1.8GHz to > 6GHz. Multiple measurement functions Ten digit LCD The TF930 and TF960 can measure frequency, period, pulse width, duty cycle The high contrast display has ten 12.5mm (0.5) high digits along with a and frequency ratio, as well as event counting (totalise). comprehensive set of annunciators. Remote control and read-back via USB These show input configuration and function, measurement time and status, The TF930 and TF960 incporporate a USB interface which allows it to be external reference connection, low battery and the units of the measurement remotely controlled using RS232 protocol via a computers USB port. which may be Hz, kHz, MHz, ns, us, ms or s. The remote commands of their predecessor instrument, the TF830, are compatible with the command set.