IEC CISPR 6
Specification for an audio-frequency interference voltmeter
|Publication Date:||1 January 1976|
The audio-frequency interference voltmeter is a device which can be used for various purposes including making measurements at the outputs of radio receivers.
In developing a specification for this voltmeter, the C.I.S.P.R. has kept in mind the needs of various organizations. In the C.I.S.P.R., a voltmeter is needed which can be utilized for checking purposes, which can be connected to the output of a good radio receiver, ad which will give significant measurements compared with a standard C.I.S.P.R. receiver according to C.I.S.P.R. Publication 1 (Second edition, 1972), Specification for C.I.S.P.R. Radio Interference Measuring Apparatus for the Frequency Range 0.15 MHz to 30 MHz. It should be noted however that the use of the device in this manner as compared to a normal C.I.S.P.R. receiver will be limited in performance by the bandwidth, overload, non-linearity and spurious responses of the radio receiver. The IEC has prepared specifications for measuring noise at the audio output of receivers.
The device also enables assessment to be made of the performance of audio system subjected to continuous and impulsive noise. It contains various circuits which can be selected depending on the function to be served. Where a specific function is desired, only those circuits necessary for that function need be included.