Special measures ensure improvements. A school subject to special measures will have regular short-notice Ofsted or Estyn inspections to monitor its improvement. The senior managers and teaching staff can be dismissed and the school governors replaced by an appointed executive committee. If poor performance continues the school may be closed as in the case of the Frank Montgomery School in Kent. The current circumstances under which a school may be placed in special measures, and the procedures to follow, are stipulated by the Education Act 2005. Prior to 2005 special measures were applied to any school which was failing to supply an
Network analyzer (electrical) Network analyzer (electrical) A network analyzer is an instrument that measures the network parameters of electrical networks. Today, network analyzers commonly measure s–parameters because reflection and transmission of electrical networks are easy to measure at high frequencies, but there are other network parameter sets such as y-parameters, z-parameters, and h-parameters. Network analyzers are often used to characterize two-port networks such as amplifiers and filters, but they can be used on networks with an arbitrary number of ports. Network analyzers are used mostly at high frequencies; operating frequencies can range from 5 Hz to 1.05 THz. Special types of network analyzers