Originally Posted By: Digital Spy
Channel 4 has started test transmissions for its high definition service on digital satellite.

Currently alternating between a black screen and a holding page, the channel may be found at 12.188H at a symbol rate of 27.5 with FEC 2/3.

In September, Channel 4 announced that it plans to launch Channel 4 HD on channel 140 in December. It will offer a high definition simulcast of its main service on satellite.

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