Transmit Inhibit - Motorola TETRA MTM800 Manual

Transmit Inhibit

The Transmit Inhibit (TXI) Mode can be activated by the user
before he enters RF sensitive areas, e.g. in hospitals or in
potentially explosive areas, where safety can be jeopardized
due to terminal transmission radiation.
Radiation of the MTM800 is only suppressed if the TXI Mode is
activated or the terminal is separated from it's power supply.
Transmit Inhibit can only be activated in Group Mode. In
Transmit Inhibit Mode the terminal will not transmit under any
circumstances, except for the Emergency Group Call, which
can be initiated even if the MTM800 is in TXI Mode.
All terminal functions and keys which cause transmission,
e.g. registration to the network, change of talkgroup or range,
sending messages, pressing PTT, etc. are disabled. In this
case the display shows "Not Allowed In TXI Mode" and the
terminal sounds the "Transmit Inhibit" tone.
When no danger to safety exists anymore (for instance if the
user leaves the RF sensitive area) the Transmit Inhibit mode
can be deactivated and the terminal returns to normal
operation.
Setting the TXI Mode is described in "Setting Transmit Inhibit
(TXI) Mode" on page 92.
To activate or deactivate the TXI Mode you can use one of the
programmable keys (if set up by your Service Provider). You
must press and hold the key for a pre-set time as configured by
your Service Provider.
Activated Transmit Inhibit is indicated by the solid orange
LED and changing between the two displays:
38
Range 10
Talkgroup 1
Status
Optns
Range 10
TXI Mode
Status
Optns