Programmable frequency source for electromagnetic compatibility testing

摘要

A method or means suitable for providing a frequency source comprises a cylindrical housing 13 containing a signal generator 26 and a power source 23. The signal generator 26 is electrically connected to an antenna 14 which is external to the said housing. The frequency source is arranged such that, in use, it produces a symmetrical signal. The signal generator 26 may be controlled by a remote computer 21 which is connected to the signal generator 26 via an optical fibre 15. The source may be accurately calibrated and used at internal or external test sites to assess the error of uncertainty of the site and to compare it with that of other test sites.