>>Note that I have been told there may be some interoperability issues
>>with 802.11 devices. The standard is complex, and apparently not all
>>devices nicely talk to each other.  I have not experienced this, but
>>network design people at Carnegie Mellon have told me this.
>The main thing I've been told is that some are "frequency hopping" and some
>are "digital spread spectrum".  The Aviator cards, for instance, are the
>former, and the Lucent cards are the latter.

	there are "Frequency hopping (FH)" and "Direct sequence (DS)" cards.
	they are not compatible (you can't mix FH and DS).
	"man 4 awi" and "man 4 wi" talks about it very much.

itojun