Point no.2 From: "Ashwin Mansinghka" <[EMAIL PROTECTED]>
pk : 2. there is no digital speed on the co-axial for tv am : Well there is, which is nearly 30 to 40 Mbps in shared mode, per channel. .. If we combine more channels more speed. pk : i guess what this means is that rpg, siticable, etc use fibre optic cables to transmit tv data AFTER digitising it .. and that needs 30/40Mbps .. from what i see in my area's CVO's place, there is a h/w which converts the optic feed into signals which are then sent over the coax cable as a non-digital feed. i am SURE that my tv's tuner is NOT digital but just a tuner .. aka the radio tuner .. i recall nn banerjee (gm, development, bsnl, assam now) telling me that to send video over a medium, a 4.5 to 5 Mbps capacity is sufficient .. strangely the bandwidth needs are miniscule to what fibre optic can carry ! am : Hmmmmm............. maybe my comments were confusing. Let me attempt to provide clarity. The data is digital at origin, travels as digital through satellite uplink and downlink and gets to the decoder and gets decoded and is still digital and gets carried over the Fiber in digital format emerges as digital at local cablewallah and then gets converted to analog signal and travels over the local cable network as analog and reaches the TV as analog. Now let's talk about this analog channel, what is the bare analog channel capacity....... too little of use. What is the digital capacity of this analog channel ........ yes quite useful, very high. Fine, now I have Internet data i.e. digital data to be transmitted over this analog path, what do I do ? -- To unsubscribe, send mail to [EMAIL PROTECTED] with the body "unsubscribe ilug-cal" and an empty subject line. FAQ: http://www.ilug-cal.org/node.php?id=3
