To determine the operating principles and circuits
of a basic spectrum analyser.
In this simplified analyser, a sweep generator
is used to provide an external input to the oscilloscope and at
the same time, to change the voltage on the control circuit of a
voltage controlled oscillator. Thus the oscillator frequency varies
as a sweep moves across the CRT. The unknown frequency, in this
case from the signal generator is next mixed with the signal from
the VCO. As with any mixer, sum and difference frequencies are produced,
but only the difference will be processed.
DIMENSION :41.5cms x 31.5cms x 13.5cms.
WEIGHT : (Approx.) 1 KG.
POWER : 230 VAC - Mains operated.