Dual Control Audio
Audio output during dual control operation is a pre-programmed function.
Default operation routes audio only to the active controller.
MULTIPLE RADIO OPERATION
Orion mobile radio may be configured to operate in a multiple radio mode
that permits more than one radio to be controlled from a single control unit
or control location. The radios could be different frequency splits,
trunked/conventional, etc.
In the multiple radio operation, the radios continue to operate as individual
radios except with a common control unit. The control unit is used for dis-
play and control. The control unit display is shared by the multiple radio
units and, when selected, a radio can be controlled by the control unit.
For multiple radio operation the control unit keypad must be pre-pro-
grammed for a variety of multiple radio buttons such as radio selection and
radio mute.
Changing Selected Radio
A radio unit may be selected by pressing the radio selection button (pre-pro-
grammed) on the control unit. Also, a button may be pre-programmed to ro-
tate selection through the radio units; e.g., if radio #1 is selected, pressing
the radio select button will select radio #2. Similarly, radio #2 will be se-
lected if the radio select button is pressed when radio #1 was selected.
Multiple radio also supports automatic radio unit selection using Multiple
Radio ProSound (MuRPS). When both radios are programmed for MuRPS,
the radio unit which provides the best audio quality will always be selected.
Shared Control Unit Display Modes
Radios in the multiple radio operation share the control unit display. Pre-pro-
gramming the radios determines what the control unit displays. There are
two modes of display: alternating radio display or first come first serve dis-
play. See also the following paragraph on Audio Modes.
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