The Spectrum Analysers AE-867 covers the frequency range from 9 kHz up to 2,7 GHz and allows a stable operation using spans from 2 kHz/div up to 2,5 GHz within the 1-2-5 step sequence. The AE-866 is the basic model whereas the AE-867 includes a tracking generator which turns the AE-867 into a highly useful tool for the response measurement of filters, amplifiers, attenuators and generally speaking, any kind of radio frequency system. Both models are instruments easy to use, which require a minimum set-up and adjustment. In addition, its alphanumeric display allows carrying out quickly accurate measurements.