Card Access
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Registered: Sep 2000
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Posts: 33 |
Sorry about not having a link to the 1.41 code on our site. We'll work on that. However, you should be able to find it at http://www.thinmodem.com/ThinmodemUpdater1_41full.zip and http://www.thinmodem.com/ThinmodemUpdater1_41solo.zip
As far as V.90 connect speeds, the best explanation we can give is that there are several different connection strategies for connect rate vs. stability, etc. This is due to the complexity of V.90 and the different digital impairments it has to deal with. It is often difficult to perform comparisons, *especially* based on connect speed.
For example, you may see one modem connect at, say 48K, which will be its reported connect speed. However, some modems may connect high, only to immediately 'fall back' to a lower speed. So, this same modem may fall back to a lower speed after connection.
Another modem may connect at, say 38K and 'fall forward', or keep the same speed. Since V.90 is a 'pushing the edge' protocol, it is typical for modems to fall back and forward throughout a single connection (including many that commonly will 'connect' at a nice high V.90 speed and immediately retrain behind the scenes to V.34). Unfortunately, all the user has to go by on a typical modem is the initial connect speed reported (that's what you see in Windows dial-up networking). This is because a modem doesn't have a way to communicate any rate change information once the connection is established and the modem is switched to data mode.
This is precisely why you'll see that comparisons on modem performance are based on modem 'throughput' tests (where data files, etc. are transferred to determine actual data throughput) instead of reported connect rate.
-Card Access
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