>>> The phone and the base station have to negotiate the spreading code
>>> used for each session. If you can eavesdrop on that negotiation, you
>>> _can_ predict the frequency hops, rendering it 'trivial' to track as a
>>> third-party listener.
>> Sure, except that the negotiation is typically performed by the base
>> and handset via a wired connection OR at extremely low power (since it
>> only happens when they're physically connected)
> What happens if you turn the handset off, then back on, when it is > _out_ of the base?
The claim about "negotiating the spreading code only when they're physically connected" is plainly false: if it were true, the multi-handset phones now so popular simply wouldn't work. After all, each handset has its own charging stand; only one of these is the "base".
Thor Lancelot Simon snipped-for-privacy@rek.tjls.com
"The inconsistency is startling, though admittedly, if consistency is to be abandoned or transcended, there is no problem." - Noam Chomsky