Brief clips of the test card, as seen on both BBC1 digital and analogue during rebroadcast tests on 27th July 2001. Note: test card clips contain tone.
Test Card W was broadcast on BBC1 digital, while analogue broadcast the 4:3 version, Test Card J, although it initially showed a 4:3 centre cut-out of TCW before opting out of the digital feed.
The tests involved cutting the network analogue feed to all transmitters except Crystal Palace. Each main transmitter therefore had to pick up off-air the signal from the nearest transmitter and re-broadcast it. In theory then, the signal should weaken the further you go from London. This appeared to be the case - reports from the North of England indicated weak reception with interference and dropout; whereas here in the South East I was able to receive a perfectly clear picture as usual.
More on test cards at Des and Mick - TV & Radio:
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