27
Getting Started
You are recommended to disable your MTH800 permanently
only when you do not expect the terminal to be recoverable
any more.
Selecting TMO or DMO Operation
General
In Trunked Mode Operation (TMO) the MTH800 is used with
the infrastructure services within system coverage.
In Direct Mode Operation (DMO) the MTH800 is used without
infrastructure services required.
A MTH800 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
MTH800 (see “Gateway/Repeater Selection” on page 52).
Entering TMO or DMO
Enter TMO or DMO in one of the following ways:
• From the Home display press
Optns and select Direct
Mode
if the MTH800 is in TMO.
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.
In DMO it is only possible to place Group Calls, Emergency
Group Calls and Private Half-duplex Calls.
To Next Page
Loading...
Need help?
General
