`Sunday Times' article on GSM changes

[Tom Libert]

Jay Prime Positive <jpp at markv.com> writes:
>  A fourth is to use an externaly generated sync signal -- for example
>a radio transmission that both sender and reciever can hear.  (For
>this aplication, I don't see how this would be used...)

Some spread spectrum systems synchronize using the (very accurate)
time signals provide by Global Positioning System (GPS) satellites.

>  Aditional solutions are possible.  (What is this S.A.W. thing I read
>about??)

I don't know where you read it, but it might stand for "Surface
Acoustic Wave".