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DMO (Direct Mode Operation)
DMO mode allows terminals to communicate directly with each other in simplex mode,
without network restriction. But functions that require network access, such as
telephone call and short message, will be disallowed.
TMO (Trunked Mode Operation)
TMO mode allows terminals to communicate with each other via the TETRA network,
in half duplex or full duplex mode. Functions that require network access are
supported.
To operate in TMO mode, the terminal must be granted authorization by your service
provider, and must be within the network coverage.
Air Interface Encryption
An encryption method helpful for protecting message transmitted over the air. It
encrypts data and signaling transmitted between the base station and terminal, to
protect the message from eavesdropping.
Full Duplex
Full duplex allows the ability to communicate in both directions simultaneously.
Half Duplex
Half duplex, also known as simplex, allows the ability to communicate in only one
direction, at a time. Two-way communication is possible, but not simultaneously.
Copyright Information
Hytera and HYT are trademarks or registered trademarks of Hytera Communications Co.,
Ltd. (“Hytera”) in PRC and/or other countries or areas. Hytera retains the ownership of its
trademarks and product names. All other trademarks and/or product names that may be
used in this manual are properties of their respective owners.
The Hytera product described in this manual may include Hytera computer programs
stored in memory or other media. Laws in PRC and/or other countries or areas protect the
exclusive rights of Hytera with respect to its computer programs. The purchase of this
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