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Glossary of Terms

Glossary of terms associated with the description and use of our Test Instrumentation range of products.


ARA  – Active Receive Antenna

Bilog™ –  Industry standard passive wideband antenna combining biconical and log-periodic elements

BNC – A bayonet fitting type of RF connector used for terminating coaxial cable

CCC – Cable Coupling Clamp

CGE – Comb Generator Emitter

CISPR – Special International Committee on Radio Interference (abbreviated CISPR from the French name of the organization, Comité international spécial des perturbations radioélectriques)

CNE – Comparison Noise Emitter

DAE – Dipole Antenna Elements

Direct Output – The output power of a device measured directly at the connector (conducted output)

EIRP – Effective Isotropic Radiated Power

EMC – Electromagnetic Compatibility

EN – EuroNorm – European Standards

EUT – Equipment Under Test

FAR – Fully Anechoic Room (the same as an anechoic chamber)

FUT – Filter Under Test

HFG – Harmonics and Flicker Generator

IEC – International Electrotechnical Commission

ISO – International Standards Organisation

LISN – Line Impedance Stabilisation Network

OATS – Open Area Test Site

Pst – Perception of Flicker, short term. A measure of flicker severity expressed as irritation, with an Pst value of 1 being threshold of irritation

RF – Radio Frequency

Radiated Output – The radiated electric field of a device measured at a specified distance

S11 S12 S21 S22– Transmission and reflection coefficients for a filter

SAC – Semi Anechoic Room

SMA – Threaded RF connector “SubMiniature version A”

SS & FL – Steady State and Fluctuating harmonics modes on HFG01 as specified by EN/IEC 61000-3-2

VSWR – Voltage Standing Wave Ratio

YRS – York Reference Source multimode Comb and Noise Generator emitter