Up for sale is a used Phase Matrix 320A / Agilent 53150A 20GHz Frequency Counter with Oven Timebase. It has been tested and is in good working condition. Original Manufacturer Description: The Phase Matrix 320A, 326A, and 346A Microwave Frequency Counters are capable of measuring frequencies from 10Hz to 125 MHz on Channel 1 and from 50 MHz to 20 GHz (320A), 26.5 GHz (326A), and 46 GHz (346A) on Channel 2. These frequency counters are also capable of measuring power on Channel 2 (in the same frequency ranges). All three counters have a maximum frequency resolution of 1 Hz.

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