D-Link DWL-3200A - Colon for Mutually Exclusive Items

802.11 a/g Dual Band Access Point Command Line Interface Manual
6
: colon
Purpose Separates two or more mutually exclusive items in a list, one of
which must be entered.
Syntax
set antenna <1:2:best>
Description
In the above syntax example, you must specify either 1, 2 or
best. Do not type the colon.
Example Command
set antenna best