Agilent / Hewlett Packard 5345A
  USED  

The Agilent 5345A universal counter is a high-performance microwave and
millimeter-wave pulse frequency counter. Operating from dc to 500 MHz,
the counter also makes sub-microwave measurements including frequency,
period, totalization, ratio, and time interval.
As a full universal counter, the 5345A features 2 ns single-shot timing resolution,
improving to 2 ps with averaging.

The 5345A mainframe accommodates plug-in accessories which extends its
inherent capabilities and provides for a variety of additional measurements.
The 5355A Automatic Frequency Converter that extends operation to 1.5 GHz,
and the 5356C Converter Head for measurements to 40 GHz.
Together, the instruments provide an expandable range of capabilities
for characterizing complex radar systems and components.

Features
Output of more than 9000 measurements per second reduces test time
Flexible external gating extends application
Automatic averaging improves accuracy
Standard high-stability timebase lowers cost of ownership 25 mV sensitivity
Frequency with resolution of 9 digits per second