Where has CNN news gone my box saying no signal for this channel ?

[John+Paul79]

CNN HD is pixelating and breaking up on channel 506. Had 2 sky engineers call out they . Signal strength 80 Signal quality 90. They checked cables . Dish is perfectly aligned.  It's the only channel of the whole lot that is breaking up.  However cnn sd on channel 884 is perfect.  

[ASW821]

No problems here. Perfect picture at around 80% signal strength although there was no sound on the HD channel this morning for quite some time.

In the past I've had pixellation problems on certain channels that I proved were coming from a nearby mobile phone mast by temporarily placing a metal sheet between the dish and the offending mast.

It's possible that you could be picking up this type of interference. Any mobile masts nearby?

[John+Paul79]

I'm not 100% sure about that regarding mobile masts. At least I can get the channel SD on 884. Still it's strange that it's the only channel affected and it was running perfectly yesterday.