Forgive me if this has been asked before. (I searched and gave up on page 9 of the 28 pages the search for "stargate dialing" turned up)
Got the 10 season set a few weeks ago, up to season 4 already and something occured to me.
When you're dialing, you select 7 glyphs. On the local end, you see the ring spin around until the first glyph reaches the first chevron, then it spins again till the second glyph reaches the second chevron, and so on and so forth until the seventh is locked in, the WHOOSH, and your wormhole link to the remote stargate is established.
The thing is. If you are on the remote end looking at the stargate, you see exactly the same thing. Sometimes it's just the cheverons lighting up one by one, sometimes you see the dialing being repeated at the remote end. It would seem more likely that once all 7 chevrons have been dialed, what you should see on the remote end is all 7 lighting up simultaniously and the wormhole immediatly established.
My question is, how does the remote end know the connection is for it when it lights up the first chevron? It seems to me that when that first one lights up at the remote end, they're still dialing on the sending site.
I can only think of a couple of senarios where this would work.
1) All seven chevrons are dialed on the local end first, then some kind of signal goes to the remote stargate which repeats the dialing sequence, then wormhole is established. Problem with this theory is that the dialing sequence takes about a minute and from what we see, after the 7th is dialed up at the local end, the wormhole is immediatly established. It doesn't wait the same amount of time it would take for the remote end to repeat the dialing sequence.
2) When the first chevron is locked in place a signal is sent to all stargate who's address has the first address with that glyph. Problem is we've never seen the behaviour of the remote stargate getting the first chevron then quitting. Plust this seems pretty wastefull in communications
3) After the 7 are dialed locally the amount of time for the wormhole to make it to the remote end would be about the same amount of time it takes a gate to dial 7 numbers remotely. Again. Doesn't seem likely unless there's some time dialation involved here.