Prosound; Telephone Interconnect; Base/Unit Operation; Operating The Radio - Ericsson TRUNKED MDX Operator's Manual

Each trunked system may also have a priority trunked system associated
with it when set to a system with a priority system programmed, the radio
periodically checks for the priority system. If found, it automatically switches
to that system. The timer is reset every time the PTT button is pressed to avoid
interrupting a conversation.

ProSound™

The radio may be programmed for ProSound system scan operation for
multi-site applications. ProSound scanning is an enhanced replacement for
wide area system scanning. This algorithm insures that the radio continually
receives high quality audio. When the selected system degrades to a
pre-programmed level, the radio begins searching for the best adjacent system
on a part time basis. Once a better system is found, the radio changes to the
new system and sounds a tone. Should the control channel be lost completely,
the radio will scan the adjacent systems until a suitable one is found.

Telephone Interconnect

This feature allows you to initiate preprogrammed Special Calls or receive
telephone calls through your radio if the system is configured for this operation.

BASE/UNIT OPERATION

This pre-programmed option is used in some fleets so units can only hear
and talk to a base dispatch unit, not to other radios in the group. In this mode
of operation, when a radio in a particular group is talking to the base dispatch
unit, all other radios in that group will receive a "System Busy" tone if they
try to access the system.

TURNING THE RADIO ON

1. Push the POWER switch. The display shows the group alpha name
once power up is complete. When powering up, the last selected
Group or Channel should be displayed unless the radio is pro-
grammed for a pre-programmed power up System/ Group. The radio
optionally generates a beep once the power up sequence is complete.
On radios with Multi-site features enabled, the radio automatically
logs onto the system once power up is complete.
2. Set the volume using the VOLUME RAMP button. A short beep
sounds each time the VOLUME button is pressed. The beeps will not
sound if a call is being received.

OPERATING THE RADIO

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