Testing is performed with a variety of different waveshapes. The
choice of test waveforms, and the level at which they are applied,
depends on the nature and source of the transients.
Tests are normally applied both to individual equipment boxes,
and to complete working systems. The latter is necessary to
evaluate whether lightning transients can cause interrupt or
misleading data on critical systems such as cockpit displays, or
As well as the testing service, Cobham also provides advice on
choice and application of test methods, test levels and
procedures. Investigative tests can also be carried out to
help understand modes of failure, and methods to improve
protection. Waveform generators can also be adapted to apply
specific, non-standard waveforms.