Not really Dan, everything is automatic.
When you bind your Tx to any Rx, it tells the Rx to only accept a signal from this Tx by using the GUID as part of it's binding process, when you have a DSM2 Tx with Model Match it also sends an identifier, (possibly the model memory number??), as another part of the bind process.
After the bind process, any time when the Rx is switched on, firstly it will search the last two channels it used for your Tx's bind-code, (it does this in case of a Rx reboot due to a low voltage condition called a brownout, to allow a fast reconnection), if it can't find the Tx bind-code, it will then wait, (by 'wait' I mean it will do nothing except put the throttle channel output to the smartsafe position, which is usually 'low throttle' or throttle 'off' but I think the DX8 has a fully programmable failsafe and can set the throttle to any position), and listen on all channels until it finds the correct bind-code will then allow. If you have selected a different model memory, as the bind-code will be different it won't allow you to control the model and will sit there twiddling it's (virtual) thumbs.
Mark
Gawd, I've just read through my reply, and it does seem to waffle on a bit
