HARRIS CORPORATION M803M Manuel D’Utilisation
CHAPTER 8—VTac Vehicular Tactical Network
86
M-803 Operator Manual
Software Version OTP 5.07
Scene of Incident
The VTac-803 can also be a vital link at the scene of an
incident, providing a repeater among OpenSky sub-
scriber radios, or alternatively, among radios in a
Mutual Aid network that connects different radio types,
whether they subscribe to OpenSky or not.
incident, providing a repeater among OpenSky sub-
scriber radios, or alternatively, among radios in a
Mutual Aid network that connects different radio types,
whether they subscribe to OpenSky or not.
In Scene-of-Incident (SOI) Mode, OpenSky Network
communications are sacrificed to enable full emer-
gency connectivity between cooperating agencies at the
scene. The tradeoff of network isolation provides
increased channel capacity while relieving traffic for
other subscribers on the network.
communications are sacrificed to enable full emer-
gency connectivity between cooperating agencies at the
scene. The tradeoff of network isolation provides
increased channel capacity while relieving traffic for
other subscribers on the network.
In Scene of Incident mode with OpenSky Trunking,
VTac supports multiple talk groups. Like a tower site
base station, it continues to support agency-specific
talk groups while at the same time creating an ad hoc
talkgroup for units at the scene.
VTac supports multiple talk groups. Like a tower site
base station, it continues to support agency-specific
talk groups while at the same time creating an ad hoc
talkgroup for units at the scene.
User Interaction
Scene-of-Incident coverage is not automatic. The
VTac-equipped subscriber will make an on-scene
command decision to manually activate SOI mode and
become the local cell for all calls on an ad hoc
network.
VTac-equipped subscriber will make an on-scene
command decision to manually activate SOI mode and
become the local cell for all calls on an ad hoc
network.
In addition, all portable radio users must select SOI
mode and tune to the VTac frequency to join the
emergency network.
mode and tune to the VTac frequency to join the
emergency network.
Public Safety Hardened
The VTac-803 is designed specifically with the Public
Safety user in mind.
Safety user in mind.
The case is manufactured with enhanced environmental
hardening making the VTac compliant with
MIL-STD-810 for temperature, altitude, solar
radiation, rain, humidity, salt, fog, sand, dust, vibration,
and shock, ensuring that it will perform under the wide
range of public safety environmental conditions.
hardening making the VTac compliant with
MIL-STD-810 for temperature, altitude, solar
radiation, rain, humidity, salt, fog, sand, dust, vibration,
and shock, ensuring that it will perform under the wide
range of public safety environmental conditions.