8G093X01 R5
VR Programming Guide
August 2022 Page 116 of 144
Determines the time
intervals at which a
Primary or Permanent
Primary VR transmits
Heartbeat messages to
all other VRs in the area.
‘Heartbeat’ messages are
part of the Static BL
Algorithm Phase and are
transmitted on the VR Rx
frequency.
Only accessible if
Primary/Secondary
Processing → All VR
Channel Types except
for Analog is checked
Primary /
Secondary
Preference
This field displayed here for reference purposes only
Refer to Hardware Setup → GPS Driven Deactivation
→ Primary / Secondary Preference field
Busy Lockout:
Outbound Voice
Communication
and Heartbeat
Enables / Disables the
dynamic phase of the
Busy Lockout Algorithm
for Outbound Voice calls
and sending of Heart
Beats.
Applicable to both Analog
and Digital VR Mode.
Applicable for Simplex
and Duplex.
Busy Lockout:
Inbound Voice
Communication
Enables / Disables the
dynamic phase of the
Busy Lockout Algorithm
for Inbound Voice calls.
Applicable to both Analog
and Digital VR Mode.
Applicable for Duplex
only.
Table 9: Permanent Primary Behaviours
Permanent Primary
Behaviour
VR Initial State → Button
Press → VR Final State
VR operates as Permanent Primary
unless in range of another
Permanent Primary. Then, the
Primary/Secondary feature
determines the Primary unit.
Standby PP → Active PP
Active PP → Active PP
VR always operates as Permanent
Primary even when in range of
another Permanent Primary
VR operates as Permanent Primary
via control head button press unless
in range of another Permanent
Primary. Then, the
Primary/Secondary feature
determines the Primary unit.
Primary → Active PP
Secondary → Active PP
Active PP → Primary/Secondary*
*depending on presence of another
PP
VR never operates as a Permanent
Primary.
VRS-EP Options
This Vehicle Repeater System with Enhanced Protocol (VRS-EP) section only applicable for
VRX1000.
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