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The IBA's Electronic Test Pattern, ETP1, is now being transmitted in some ITV regions when programme schedules permit. Up-to-date information on these test transmissions can be obtained from the Engineering Information Service of the IBA. This leaflet explains the important features of this test pattern.
The need for an electronically generated test pattern has arisen because the IBA is bringing into service four Regional Operations Centres (ROCs). Over the next few years, these will replace the 14 IBA Control Centres originally built to monitor and control the ITV UHF colour television service.
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