Agilent / HP / Keysight 53132A
53132A Universal Frequency Counter, 12 digits/s
This unit has a frequency resolution of 12 digits per second, 150ps time interval resolution and a complete set of test and analysis features.
It also comes with two 225MHz channels, and you can choose an optional third channel that measures up to 3GHz, 5GHz or 12.4GHz.
Measurements include frequency, frequency ratio, time interval, rise/fall time, phase, duty cycle, positive/negative pulse width, totalize, peak voltage, time interval average and time interval delay
Automated limit tests and one-button measurement setups for fast, easy operation
Onboard digital signal processing speeds measurements
Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
225MHz bandwidth (optional 1.5, 3, 5, or 12.4GHz)
10- or 12-digit resolution with 1 s gate time
GPIB interface and IntuiLink connectivity software standard
Data transfer rate of up to 200 fully formatted measurements/second