Analog Circuits Cookbook

Measurements (rf) 159

Add on a spectrum analyser

Introduction

In general electronic design and development work, fault-finding, servicing,

etc,

in either analogue or digital areas, an oscilloscope is undoubtedly the

basic tool of the trade. When investigating the performance of rf equip-

ment however, whilst an oscilloscope (with sufficient bandwidth) is a great

help and certainly much better than nothing, it is very revealing to have a

spectrum analyser on the

job.

Unfortunately a professional-standard spectrum

analyser is very expensive; even a second-hand model will cost around

£2000. A much cheaper alternative, which is capable of considerabl ...