The TF930 and TF960 use a high quality temperature compensated internal frequency reference (TCXO) which has a low aging rate and is stable to within ±1ppm over the full temperature range. An External Reference input is provided. Frequency, period and frequency ratio functions the TF9xx uses a reciprocal counting technique to provide high resolution at all frequencies. A USB interface allows remote control.
Frequency, period, pulse width, frequency ratio, duty cycle, and event counter modes
DC to 3000 range, 0.001mHz resolution
High impedance measurement up to 125 MHz
AC or DC coupling, 1M/50Ohm selection, polarity invert
Switchable attenuator, threshold control
Noise filter for low frequency measurements
Selectable measurement time; display hold function
Large 10 digit display with full range of annunciators
Internal rechargeable batteries for portable use
USB interface provides full remote control and readback