Why does digital cable tv not have an effect on cable internet?

[Sureshot324]

They are both transfering digital information over your cable line, and fullscreen video must be using a lot of bandwidth. How come watching tv has like no effect on internet bandwidth?

 

[HomerSapien]

Isnt the data for tv on a different part of the spectrum than the internet is?

 

[flexy]

well...correct me if i am wrong...but the cable (even the modem itself) has a LOT of headroom left upwards.

Thats why companies like comcast can upgrade a 3MB line to 4MB or 6MB even 8MB/s easily just by "uploading" a config file to your modem..the line and the modem itself stay the same
I dont even know where it tops out with cable bandwidth (someone lese might know)...but it should give you an idea that there is plenty bandwidth left for TV and internet.

Also....dont forget that "fullscreen" video still means its compressed...even hdtv comes in compressed format.

 

[JBT]

Originally posted by: flexy
well...correct me if i am wrong...but the cable (even the modem itself) has a LOT of headroom left upwards.

Thats why companies like comcast can upgrade a 3MB line to 4MB or 6MB even 8MB/s easily just by "uploading" a config file to your modem..the line and the modem itself stay the same
I dont even know where it tops out with cable bandwidth (someone lese might know)...but it should give you an idea that there is plenty bandwidth left for TV and internet.

Also....dont forget that "fullscreen" video still means its compressed...even hdtv comes in compressed format.

right.
One reason the internet speeds aren't as high as you might like is because the cable co TV network is THEIR network it never leaves it they don't really pay for the bandwidth. With the internet the cable co's have to pay for upload and download speeds onto other providers back bone networks etc.

 

[FrustratedUser]

Originally posted by: Sureshot324
They are both transfering digital information over your cable line, and fullscreen video must be using a lot of bandwidth. How come watching tv has like no effect on internet bandwidth?

Because it uses a different channel. (Each channel is has 6MHz bandwidth)

 

[luigi1]

The answer fo the OP is their on different frequencys. And theres a ton more room as far as downpipe. Uppipe begings to get congested if there are a lot of internet users on your cable run as the bandwidth is shared on cable. How can telephone and DSL be usable at the same time? Same answer there on different frequencys.

 

[Josh7289]

Just another quick question: if one can get digital cable, can one get cable Internet, and vice versa? Thanks.

 

[Evander]

Anyone else disappointed with their digital cable? Changing channels is much much slower, and they have this no-digital copy signal that is picked up by my pvr (I can record, but if I transfer the file to DVDR it says it must erase the hard drive copy). I'm thinking about going back to analog
And another bad thing is that the compression IS noticable, especially when you have red objects on a black background

 

[igowerf]

Originally posted by: Evander
Anyone else disappointed with their digital cable? Changing channels is much much slower, and they have this no-digital copy signal that is picked up by my pvr (I can record, but if I transfer the file to DVDR it says it must erase the hard drive copy). I'm thinking about going back to analog
And another bad thing is that the compression IS noticable, especially when you have red objects on a black background

Yeah. Channel changing is slow and "digital" cable quality isn't really that great. Sometimes, I even have to wait for the channel to download. The only thing I enjoy is the 300+ channels that we get now. It's pretty nice when I'm bored out of my mind.