User's Manual

The VRS will command the ASTRO mobile to send out an CPS-programmed status on
the mode currently displayed on the control head, in the same manner as if the request to
send status had been generated using the control head. The VRS will send out only one
status 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 status was received.
If the status selected is valid, the VRS will transmit to the portable the mobile tones
indicating whether or not the valid status was acknowledged. If the status selected is
invalid, (either incorrectly programmed in CPS or not a valid status for the currently
displayed mode), the VRS will send a low-pitched alarm tone to the portable.
To generate a status request, the portable user would:
o select the channel on the portable programmed for the status 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 "status request" channel.
NOTE: A status cannot be generated from the control head while the VRS is
activated.
Time-Out Timer
The Time-out Timer (TOT) duration value sets the maximum allowable time for a base-
to-portable transmission. The VRS TOT may be set to 30, 60, 120 seconds, or disabled.
When a unit times out, it counts up to delay state one. This removes it as the priority unit.
VRS Single Tone
When the VRS unit is enabled, it transmits an audible tone (Single Tone) for 700 mS
which is used by other VRS units for the automatic prioritization routine. The Single
Tone frequency is fixed at 847.5 Hz.
VRS Mobile-TX Acknowledgment Tones (Conventional Only)
When this option is enabled, the VRS transmits a 750 Hz feedback tone after it has
received a repeatable message on the portable frequency. This signals the portable
operator that the transmission was received. If the repeated message was cut short due to
the mobile TOT being exceeded or the mobile channel being changed during the repeat, a
lower-pitched tone (304 Hz) sounds. If the portable user does not hear a tone after
completing a transmission, the portable is either out of range of the repeater or there is no
priority repeater in the area.
See "VRS Mobile Trunking Tones (Trunking Only)" on page 26 for a description of
trunking acknowledgment tones.
Flashing Display
The Flashing Display feature causes the display on the control head to alternate between
the current mode and "VRS BOTH." This feature is used primarily when the VRS
enable/disable button does not have an indicator light or when VIP activation is used.
This feature is normally disabled in CPS. The length of time "VRS BOTH" is displayed