User's Guide

You can also use a repeater to enable communication between two radios which cannot
communicate directly, perhaps because their users are do not have line of sight with each other.
The following diagram shows radios A and B and a repeater which are on the same DMO talkgroup.
A and B are in range of the repeater. Because of its location, the repeater can pass communications
between A and B even though they cannot communicate directly.
What repeaters cannot do
In Repeater Mode the radio cannot:
82 SC21 Series hand-portable radio