Motorola VRS750, Руководство по обслуживанию

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9
ASTRO VRS
Programming Windows
There are five windows for editing the VRS Option. Four of these
windows are in the
Radio Wide section of Radio Configuration while
the fifth window is a table for the VRS mode steering PLs. The first
window is the VRS subsection of the
Radio Wide options (see Figure
8). In this window Base Repeater, Mobile Detector, Flashing Display,
VIP control of VRS, and Trunking Access Tones can be enabled or
disabled by clicking in the box to the left of the option. This window
is also where the ICM mode can be selected using a pull down menu.
Enabling Base Repeater will add 300 ms of delay to the prioritization
routine to account for fixed repeater attack time.
The second window is the VRS Private Line subsection (see Figure 9).
This window allows the user to select a Mode Steering type, if one is
being used. If Mode Steering is set to Disabled, the Access PL Freq. and
Access PL Code fields will become user selectable. These fields specify
the one PL frequency transmitted by the portable that will be used to
access the VRS750. The VRS750 will treat that access PL in the same
manner as a “select mode” mode steering PL. To edit these fields click
in the Access PL Freq. or Access PL Code box and use the pull down
menu to select the desired frequency or code.
Also located on the second window is the VRS Tx Squelch Type. To edit
this field click in the box to the right and use the pull down menu to
choose between TPL and CSQ. If TPL is selected, meaning that the VRS
should transmit to the portable with PL, the VRS Tx PL Freq. and VRS
Tx PL Code fields will become user selectable. To edit these fields, click
in the VRS Tx PL Freq. or VRS Tx PL Code box and use the pull down
menu to select the desired frequency or code.
Figure 7. Radio VIP Window
(Radio Configuration --> Radio Wide --> Radio VIP)