MacKenzie was reacting to Rajar's announcement that it is to spend £500,000 testing new versions of two electronic audiometers from Arbitron and Radiocontrol.
The latest experiment will not start until next July. MacKenzie wants to see the adoption of a wristwatch measurement system developed by Gfk Media, which indicates that talk stations, such as his own talkSPORT, have significantly higher audiences than are reported by Rajar.