    * 135 MHz on both A and B channels with 10 ns single-shot resolution (5 ps resolution with avergaing).
    * Period, width, time A-B, events B during A, totalize, ratio, time manual, and arming functions.
    * Eight digit display, auto or selected averaging to 10E8 in all modes.
    * Duty-cycle independent autotrigger, shaped A and B channel outputs, probe compensation.
    * Powerful reciprocal frequency measurement allows up to eight digits of resolution of low frequency signals in one second or less measurement time.
    * Requires one slot in TM-5000 series mainframe.
    * GPIB capability when used in TM5000 mainframe.
    *

