Testing and Test Equipment

- information about all aspects electronics testing, test methods, and test equipment including oscilloscopes, test meters, spectrum analyzers and all forms of test equipment.

Electronics test and test equipment are essential elements of electronics and radio. Electronic equipment can develop failures, or it may not work properly when it is built. In order to discover whether a circuit is working, and then where the problem is located, it is necessary to use various forms of test equipment.

The items of test equipment that are commonly found are multimeters, analogue and digital (DMM - digital multimeter), oscilloscopes, and under some circumstances more specialised test equipment including spectrum analyzers may be used.

Test glossary of terms


The multimeter forms one of the most widely used items of test equipment. Digital multimeters, DMMs have taken over from their analogue counterparts, although they are still available and used quite often.

Spectrum Analyzer

The spectrum analyzer is a key item of test equipment for any RF application. Rather than looking at signal amplitude with respect to time as in the case of the oscilloscope it provides a plot of amplitude agaisnt frequency.


While multimeters are able to perform many tests, oscilloscopes are able to provide a unique insight into the working of an electronics circuit, because an oscilloscope is able to show the waveforms as well as being able to measure them.

Dip Meter / GDO

The dip meter of grid dip oscillator is a remarkable simple, yet versatile item of test equipment which be used in many applications.

Logic Probe

Logic probes are simple and easy to use test instrumetns used to test simple logic circuits and ascertain logic levels.