User`s guide

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Conv PPI Timing (sec) Use the UP/DOWN arrow keys to select the Conventional Portable
Priority Interrupt (Conv PPI) value. The Conv PPI Timing value
indicates how frequently the Vehicular Repeater System—Expanded
Protocol (VRS-EP) searches for possible Repeater Portable Priority
interruptions on a Conventional Mode.
During Conventional PPI operation, the VRS-EP will quickly ‘listen’
for possible portable radio activity during any transmission
originating from the base. This on and off monitoring action will
occur more frequently than with a PPI timing selection of “Fast” than
with a selection of “Slow”.
At either setting, the signal coming through from base is interrupted
and the portable transmission picked up if such portable activity is
detected. This implies that the transmission coming through from the
base is interrupted only if a portable user happens to key up for some
reason.
Trunked PPI Timing (ms) Use the UP/DOWN arrow keys to select the Trunked Portable Priority
Interrupt (Trunked PPI) Timing value. The Trunked PPI Timing setting
indicates how frequently the Vehicular Repeater System—Expanded
Protocol (VRS-EP) searches for possible Repeater Portable Priority
interruptions on a Trunking Mode.
During Trunking PPI operation, the VRS-EP will quickly ‘listen’ for
possible portable radio activity during any transmission originating
from the base. This on and off monitoring action will occur more
frequently with a PPI Timing selection of “Fast” than with a selection
of “Slow”. At either setting, the signal coming through from base is
interrupted and the portable transmission picked up if such portable
activity is detected. This implies that the transmission coming
through from the base is interrupted only if a portable user happens to
key up for some reason.
Base Repeater Use the UP/DOWN arrow keys to enable/disable the Vehicular
Repeater System—Expanded Protocol (VRS-EP) Base Repeater option.
The Base Repeater option must be enabled when the mobile radio is
being used with a fixed site repeater. Enabling the Base Repeater option
adds a 300-ms delay between unit prioritization thereby allowing non-
priority mobiles to better detect any priority mobile in the system
through the base repeater.
VIP Control of VRS Use the UP/DOWN arrow keys to enable/disable Vehicle Interface Port
(VIP) Control of the Vehicular Repeater System—Expanded Protocol
(VRS-EP). The VIP Control of VRS allows the user to initiate and/or
stop VRS-EP operation via a VIP port.
Note: Only after enabling VIP Control of VRS will the VRS-EP VIP-
In feature be available for selection. This option must therefore be
enabled prior to configuring the associated VIP-In feature.