The invention and innovation of spectrum analyzer

First generation spectrum analyzers

In 1964, HP released the first generation of spectrum analyzer with a frequency range of 10MHz to 10GHz and a span of 2GHz.

Figure 1: First generation spectrum analyzer

Frequency Domain Oscilloscope

In 1969, HP released a frequency domain oscilloscope based on the 141T mainframe, which could be loaded with the 8554 RF module and the 8552 IF module.

Figure 2 Frequency domain oscilloscope

Automated Spectrum Analyzer 8580A

HP released the first generation of automated spectrum analyzer, the 8580A, in 1972.

Figure 3 Automated Spectrum Analyzer 8580A
 

The first generation of digital spectrum analyzer 8568A

HP released the first generation of digital spectrum analyzer 8568A in 1978, with a frequency as high as 1500MHz.

Figure 4 Digital spectrum analyzer 8568A