Agilent / HP / Keysight 71210C
71210C Microwave Spectrum Analyzer, 100 Hz to 22 GHz
This spectrum analyzer is a wide band, very sensitive receiver.
It works on the principle of "super heterodyne receiver" to convert higher frequencies (normally ranging up to several 10s of GHz) to measurable quantities.
The received frequency spectrum is slowly swept through a range of pre-selected frequencies, converting the selected frequency to a measurable DC level (usually logarithmic scale), and displaying the same on the CRT of the Agilent 71210C.
The CRT displays received signal strength (y-axis) against frequency ( x-axis).
Adjacent channel power
Microwave or satellite antenna alignment
Characterization of components
Form Factor: Mainframe
Input Impedance: 50ohms
Frequency Range: 100Hz to 26.5GHz
Frequency Accuracy: 0.00000000001%