Motorola MCS 2000 User Manual page 191

Revert Talkgroup
(or Revert Subfleet) Strapping
Use the UP/DOWN arrow keys to make your selection. This field
configures the transmit mode of Emergency Talkgroup or Emergency
Subfleet. If set to Clear or SECURE, the Emergency Talkgroup or the
Emergency Subfleet is forced to that particular transmit mode. When
set to Select, the user is allowed to select the SECURE or Clear transmit
modes using a radio button programmed to SECURE.
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