Terminal Disable/Enable; Selecting Tmo Or Dmo Operation; General - Motorola TETRA MTP850 Feature User Manual

Terminal Disable/Enable

Your MTP850 is provided with a feature that allows your
Service Provider to disable it temporarily in case it is
stolen.When your MTP850 is disabled, no calls can be
initiated or received.
While your MTP850 is disabled, it will look and act like it is
turned Off.
If you try to turn your MTP850 On, when it is disabled, it will
operate as described above.
If your MTP850 is found, your Service Provider can re-enable
it. After your MTP850 is re-enabled, you may resume normal
operation.

Selecting TMO or DMO Operation

General

In Trunked Mode Operation (TMO) the MTP850 is used with
the infrastructure services within system coverage.
In Direct Mode Operation (DMO) the MTP850 is used without
infrastructure services required.
While operating in DMO the propagation travels directly from the
transmitting terminal antenna to the receiving terminal antenna, with
no assistance from any base station or tower. Therefore, the range
is critically dependent on the position of the user and the antenna.
To achieve best results, hold the terminal in the hand as high as
comfortably possible, and be sure not to obstruct the antenna in any
way. Be sure that the antenna is clear from the body, cables, or
other obstructions.
As there is no tower-mounted base station to assist, and the two
users are usually standing at ground level, the range is usually
shorter than that can be achieved towards a tower or hilltop. Any
obstructions (hills, buildings, etc.) between the users will further
decrease the range. Conversely, raising the terminal higher or
moving to a higher location may improve the range.
A MTP850 in DMO can communicate with the trunked
system (and vice-versa) through a gateway device. To use
that feature, please enable the gateway option in your
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