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53SL ES Series Mobile Radio Operating Manual April 2009
Operating Modes
Section 4 - General Operation
4.2.4.3
Zones
A zone is a collection of up to 16 channels of any type. For example, a zone could include
12 conventional channels and four SMARTNET channels. One use of zones may be to
program the channels used for operation in a different geographical areas. The maximum
number of zones is 32 or 54 depending on the option enabled.