High-performance, low-cost counters simplify and speed system and bench frequency measurements
1.   53131A, 225MHz universal frequency counter, 2-ch, 10 digit/second
2.  1.5GHz, 3 GHz, 5 GHz and 12.4 GHz optional input
3.  Removable handle and bumpers for easy rack mounting
4.  Easy to use front panel for quick measurement setup
5.  Rear panel computer interfaces: GPIB and RS-232
6.  Free IntuiLink software for instrument setup and data monitoring analysis
Fast, precise frequency measurements
Measures frequency, period, ratio, time interval, pulse width, rise/fall time, phase angle, duty cycle, totalize and peakvoltage.
Optional timebases for increasedstability.
500 or 150 ps single-shot time intervalresolution.
Other features: Built-in statistics, math functions, automated limit testing and store up to 20 differentfront-panelsetups.