Cable Forum - 50M 16QAM & 64QAM Interference

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- - 50M : 16QAM & 64QAM Interference (https://www.cableforum.uk/board/showthread.php?t=33701061)

Jon22

12-07-2015 13:57

Re: 16QAM & 64QAM Interference

Quote:

Originally Posted by Ignitionnet (Post 35787961)

Nope. They're good to go; all of the CMTS must support 4 x 64QAM bonding out of the box.

Thank you. Just a case of waiting then.

Ignitionnet

12-07-2015 14:30

Re: 16QAM & 64QAM Interference

Early days still.

ccarmock

12-07-2015 15:52

Re: 16QAM & 64QAM Interference

I see even New Malden with the 50 Mb/s business service is now using 16QAM for upstream maintenance messaging.

chambohambo

12-07-2015 19:08

Re: 16QAM & 64QAM Interference

I am on 64QAM here in Preston.

https://www.cableforum.co.uk/images/...2015/07/30.jpg

Sephiroth

19-07-2015 13:26

Re: 16QAM & 64QAM Interference

Quote:

Originally Posted by chambohambo (Post 35787728)

Is it correct that 64QAM is more prone to interference than 16QAM?

I have always made the analogy with potholes in the road. If you drive slowly enough to see them, you can correct for them. If you speed up, you don't have the chance to make corrections.

General Maximus

19-07-2015 15:49

Re: 16QAM & 64QAM Interference

wise words as always

pip08456

19-07-2015 19:10

Re: 16QAM & 64QAM Interference

Then there's the analogy that with an increased number of lanes (not referring to channels here) one pothole would have less effect on traffic flow.

The analogy can of course be applied to more upstream channels.

qasdfdsaq

20-07-2015 15:36

Re: 16QAM & 64QAM Interference

My analogy would simply be the smaller the text, the harder and slower it is to read, especially in low light.

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