User's Manual

Zone/Chan
The VRS will command the ASTRO mobile to change to the mode programmed by the
CPS. Once the mobile has steered, it will follow the conventions of the type of steering
selected (for example, Transmitter Steering/Receiver Latching).
Select Mode
The VRS will command the ASTRO mobile to return to the last mode selected by the
rocker switch on the control head. If the portable user has steered to another mode, and
the selected mode is changed in the car, the steering will be canceled until the VRS
receives another mode steering PL.
Emergency Alarm
The VRS will initiate an Emergency Alarm through the ASTRO mobile, if the mobile is
programmed for this type of Emergency, in the same manner as if the Emergency button
on the control head were pressed. The type of Emergency (trunked or conventional)
depends on the currently selected mobile mode, (trunked or conventional, respectively).
The VRS will only generate an Emergency, not perform a portable-to-base audio repeat,
while the portable is transmitting on an "Emergency request" channel. This feature is
typically implemented in the portable, using a one-touch button that has been
programmed for Emergency-revert to a channel with the proper PL.
Although the portable generates MDC tones, the VRS cannot decode MDC. Instead it
responds to the PL of the portable mode on which the Emergency MDC tones are
transmitted. All of this is transparent to the user.
Message
The VRS will command the ASTRO mobile to send out an CPS-programmed message on
the mode currently displayed on the control head, in the same manner as if the request to
send a message had been generated using the control head. The VRS will send out only
one message per received portable signal. No mode steering will occur; the currently
steered/latched mode and the selected mobile mode will remain as they were before the
request to send a message was received.
If the message selected is valid, the VRS will transmit to the portable the mobile tones
indicating whether or not the valid message was acknowledged. If the message selected is
invalid, (either incorrectly programmed in CPS or not a valid message for the currently
displayed mode), the VRS will send a low-pitched alarm tone to the portable.
To generate a message request, the portable user would:
o select the channel on the portable programmed for the message request,
o momentarily press the PTT button,
o wait for the confirmation tone, and
o return the channel selector to a voice channel.
The VRS will not perform a portable-to-base audio repeat while the portable is
transmitting on a "message request" channel.
NOTE: A message cannot be generated from the control head while the VRS is
activated.
Status