a homework question

来源: 于 2008-02-16 11:17:56 [旧帖] [给我悄悄话] 本文已被阅读：次

In a modem constellation diagram, there are data points at the following coordinates: (1,1), (1, -1), (-1, 1), and (-1, -1). How many bits we have here? THANKS!!!