If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#8
|
|||
|
|||
On Tue, 19 Aug 2003 21:13:35 -0700, Peter Duniho wrote:
500ms ping time minimum... So count on lots of lag... Unless you are playing online computer games, you would never notice the lag. Most Internet access is of the form "brief request for data, followed by large amount of data returned". It'll take an extra half-second for the data to show up, but that will generally be swamped by the time it takes to actually generate and send the data, even at broadband speeds. This depends on how big the data piece is relative to the starting handshake. Consider that TCP start-up involves so-called 3-way handshake, and that many protocols have a setup phase when client and server exchange messages strictly in simplex, before bulk data transmission can commence. None will work when it rains hard or the sun is in transit (summer / winter soltice)... Why would you say that? The satellite data systems I've seen are based on similar technology to that used for my digital broadcast satellite system. At worst, data throughput drops *some*, and that's in the very worst downpours. I have no idea why the solstices would have any effect on data transmission. Perhaps you could explain that one. Your transmitter is nowhere as powerful as the one of the base station or the one on the satellite. The good news is that DirecWay's dish is about as big as the old PrimeStar dish. I have one of those, modified to support DirecTV's LNB with a bunch of duct tape and some pieces of wood. My TV never goes off even in "worst downpours". So, your downlink is virtually rain proof. The bad news is that the same cannot be said about your uplink. Solstices only knock communication off for several minutes a day, when the Sun is directly behind the satellite. It is a well known effect. I used to depend on an old Soviet satellite Raduga-7 for connectivity, and it was true back then. -- Pete |
Thread Tools | |
Display Modes | |
|
|