whats the modulation on a 422 feed please

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iwol

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trying to search for 422 feeds on 7e using prog dvb could anyone tell me what the modulation is to put i please,and do i tick the dvb-s2 and pilot box please.thanks
 
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sorted thanks
 
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iwol said:
sorted thanks
Click to expand...


for future reference and the benefit of people like myself that did not know the answer would you care to post it?
 
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sorry guys
Most 422 feeds are mpeg2 qpsk
 
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iwol said:
sorry guys
Most 422 feeds are mpeg2 qpsk
Click to expand...

On that I am surprised iwol I did not know anyone used quadrature phase shift keying thanks for clarification
 
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Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information. It is used in many video encoding schemes—both analog and digital—and also in JPEG encoding.

The subsampling scheme is commonly expressed as a three part ratio (e.g. 4:2:2)

It have no rerlation with satellite signal modulation. It can be used with either QPSK or 8PSK. For viewing 4:2:2 signal, you need a good codes like nero. It will support 4:2:2. Some days ago, I saw several feeds from Asiasat 100E. Many of then are in 4:2:2. You can view it clearly on SS2 with good codec.
 
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