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PRODUCTS PHASE NOISE MEASUREMENT SYSTEM - PMT8080
Wide frequency range : Unlike similar systems, a single phase noise system covers a frequency range of 50 MHz to 18 GHz.

Wide bandwidth : PMT8080 covers over two octaves of RF frequency. Phase noise measurements can be made at offset frequencies from 1 Hz to 10 MHz.

Flexible : The PMT8080 can measure a wide variety of oscillator types, including free running VCOs, locked PLL systems, and test equipment.

Simple to use : PMT8080 uses only three front-panel coaxial connections to the reference signal generator, oscilloscope and the external mixer. Front panel meter and oscilloscope provide an indication of system lock.

Low phase noise floor : The exceptionally low phase noise floor of the PMT8080 allows even very low noise oscillators to be characterized.

Compact : The small size of the PMT8080 uses only a few square inches of valuable bench area.
Princeton Microwave Technology’s flexible phase noise measurement system PMT8080 allows accurate phase noise measurement to a far lower level than can be achieved using a spectrum analyzer.

The unit uses a phase locked system (outlined below) to convert the noise sidebands of the signal directly to base band. The base band is sampled using a fast A/D and converted to a data file for analysis.

A simple PC application provides all the necessary control and will run on a 486 or a faster machine. The data file produced can be ported to a MathCAD routine (also supplied) to provide scaled plots of phase noise at various offsets.

The software provided is also capable of indicating any spurious signals that may be present in the spectrum of the unit under test, thus enhancing the systems effectiveness, not only as a design and verification tool, but also as a quality verification tool for production environments.
 
PARAMETER UNITS SPECIFICATIONS
Input Frequency Range MHz 1- 26000
Oscillator Input level dBm max 14
Local Oscillator level dBm max 17
Phase noise floor KHz -165 dBc/Hz
  KHz -175 dBc/Hz
  KHz -175 dBc/Hz
  MHz  
Operating Temperature Centigrade 0 to 50
Storage temperature Centigrade -50 to 100
Power Requirements Volts AC 110 Volts
Dimensions Rack Mounted 19 inch Rack