Mobile Satellite Radio

Mobile Satellite Radio
Mobile Satellite Radio
Network Innovations SATRAD allows work crews,
drivers, search and rescue teams, firefighters, and
others to stay in touch and get their jobs done
virtually anywhere in North America.
Providing two-way group communications
capability, SATRAD allows one user to talk to
multiple users, or users can conduct private one to
one conversations. The SATRAD service is a costeffective alternative to installing, maintaining, and
relocating land-based two-way radio
communications systems.
The SATRAD network acts much the same as a
radio tower, turning the entire continent into a single
cell and transmitting signals to and receiving signals
from subscribers on the ground.
SATRAD relies on establishing talk groups - sets of
users who share a common radio channel. Each
SATRAD MSAT terminal can support up to 15 talk
groups. While users can belong to more than one talk
group, each talk group can include as many as
10,000 members. When establishing talk groups,
priority levels can be predetermined in order to
define who will be permitted to listen and speak
during each session.
Users also have the ability to dial-in to a talk group
from the PSTN or dial-out from a talk group to the
• Priority 1 Interrupt - During emergencies, a user
can override other users within the same talk
group. You can set a talk group to one of three
different priority levels, which allows users to filter
out conferences on low-priority talk groups unless
that talk group is selected. High-priority talk group
conferences are always heard no matter which talk
group is selected.
• Network Flexibility – SATRAD MSAT Terminals
can be interfaced with existing terrestrial fleet
communications infrastructures.
• Interoperability – Talk groups can be configured
to allow for interagency communications between
local, regional, and national emergency response
• Coverage Adaptability – The footprint allows
subscribers to expand or reduce dispatch radio
coverage as their needs change.
• Network Reliability – Satellite networks perform
during emergencies when land-based
communications are not available.
• Secure Communications – the network employs
the IMBE (Improved Multi-Band Excitation) voice
codec approved by the Association of Public Safety
Communications. Digital coding and scrambling
prevents casual eavesdropping or monitoring of
Designed for use on the MSAT Network, the SATRAD
MSAT-G2 supports North America-wide Push-to-Talk
Dispatch Radio and Circuit Switched Voice
communications. In addition, the MSAT-G2 provides
GPS capability and flexible interconnectivity to a
variety of 3rd party interoperability interfaces,
extending the reach of traditional Mobile Radio
technology. Options are available for Land mobile
(NI-SR-MB), Land fixed (NI-SR-FX) and Maritime (NISR-MR).
Dual-Service Handset
Continent-Wide Dispatch Radio (PTT) and
Circuit Switched Voice service capability.
GPS Display Feature
Keypad & Display Backlight Control
Headset Port
Radio Transceiver Unit
• Compact Form Factor
• Handset Port (RJ-45)
• Ethernet Port (RJ-45)
o GPS Output
o Software Upgrades
• DB9 Serial Port
o GPS Output
o Interconnectivity to 3rd Party
• External Speaker Port
• Power Connector
L-Band Antenna
• Low profile Land Mobile 2-Axis Platform or;
• Maritime 3-Axis Platform
• 16 Channel GPS Receiver (inside L-band
Communication Modes
• Dispatch Radio half-duplex digital
• Voice full-duplex digital
• Transmit = 1626.5-1660.5 MHz
• Receive = 1525.0-1559.0 MHz
Channel Spacing
• 6 KHz
Weight & Dimensions
• Transceiver Unit = 0.8 lbs, 6.5" x 1.1" x 5.6"
• Handset = 0.6 lbs, 2.9" x 1.4" x 6.8"
• 220 Antenna = 4.6 lbs, 9.8" x 3.9"
• 320 Antenna = 10.3 lbs, 11" x 11"
Operating Environment
• Antenna = -22°F(-30°C) to +109°F(+43°C)
• TU = -22°F(-30°C) to +131°F(+55°C)
• Humidity: 98% at 100.4°F (38°C)
• Dust: In Accordance with SAE J1455 section
• Rain: Antenna = Precipitation rate of 2"/hour
• Primary Voltage = 12V DC Nominal
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