The National Office for Integrated and Sustained Ocean Observing and Prediction htttp://www.ocean.us.net

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The National Office for Integrated and Sustained
Ocean Observing and Predictionhtttp//www.ocean.u
s.net
Update on the U.S. Department of Defense/U.S.
Navy/ Office of Naval Research Program to
Implement Advanced Telemetry From Oceanographic
Platforms
Stephen R. Piotrowicz, Ph.D. 14 October 2002
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Program Status

• Phase II Contracts Awarded March 2002
• NAL Research Data Unit System Development
• Omnet Data Delivery Serivices
• Distributing 100 L-Band Transceivers
• Web Solicitation for Potential Applications
• Objective is a Spectrum of Platforms,
  Environments, and Data
• Delivery Requirements
• Participants Selected in June
• Distribution of Conventional Data Units Began
  in June
• Distribution of GPS Capable Units Beginning in
  October
• Distributing 104 Iridium SIM Cards Utilizing
  the Department of
• Defense/Defense Information Systems Agency
  Gateway in Hawaii

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Overview of Iridium Satellite LLC

• Purchased Iridium LLC for 25 Million
• Annual Operating Costs 85 Million (Original
  System 1 Billion)
• 3 Gateways
• Equipment Pricing - 500-1,500 (Original
  System - 1,500 - 3,500)
• Service Pricing/Minute - 1.00 - 1.50 (1 Rate
  Globally)
• Original System 2.00 - 7.00 in a 15x15
  Matrix
• Commercial Service Launch
• Voice 31 March 2001
• Data June 2001
• 3 Million per Month from DoD Contract (2 Year
  5 One-Year Options)
• Up to 20,000 Subscribers, Unlimited Airtime
• Government Handles Tail Charges, Connectivity
  to Internet,
• Subscriber Equipment Ordering, Billing,
  Etc.
• Satellite Network and Control Facility
  Operated by Boeing

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Current Status of Iridium

• 66 Operational Satellites 11 in 6 Orbital
  Planes
• 12 In-orbit Spares At Least One in Each Plane
• 2 Ground Spares
• Full Constellation Life Minimum, mid-2010
  Aerospace Corp.
• Independent Study
• Gateways
• Tempe, Arizona Primary Gateway
• Fucino, Italy
• DoD Gateway in Hawaii Circuit Data and
  Internet Upgrades
• in Progress
• Gateways to be Added to Support Commercial
  Demand
• Satellite Network Operations Center in
  Leesburg, Virginia
• Back-Up Facility in Chandler, Arizona

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Current Status of Iridium
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Current Status of Iridium
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Current Status of Iridium
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Dial-Up Data
PSTN
ISP

• Direct-Dial Connection Between Mobile Application
  and PSTN (Corporate/ISP)
• AT Commands and RS232 Provide the Application
  Interface to the Subscriber Device
• User Throughputs Up To 2,800 bps (nominally 2,400
  bps)

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Direct-Internet
Iridium Gateway
Internet
Internet Server
D900

• Direct Internet Provides a Complete Digital
  Connection to the Internet - Iridium is the ISP
• Reduced Session Set-Up Time and Improved
  Grade-of-Service Over Dial-Up
• Employs SmartConnectTM Features to Support
  Connection Management
• Compression
• Spoofing
• User Effective Throughput is Nominally 10,000 bps

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Short Burst Data Service
User Application
Iridium Gateway
Internet
SBM Network Equipment
D900

• Short Burst Data is an Efficient Packet-Based
  Service.
• Service is Planned to Support 1900 bytes in both
  MO MT Directions
• Pricing plans to be based on per byte usage
• Combination of Circuit Short Burst Data Results
  in Cost Effective Usage Growth.

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Data Unit Phase I
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Data Unit Phase I

• 9500 Phone Converted to Data Module
• Vendor Selected and NRE Funded by Iridium
• Design Complete
• Serial, Power and Antenna Connector
• Dial-Up and Internet Data Services
• Billing in 6 Second Increments
• Cost of Production Units - 1,000 w/o GPS 1,200
  w GPS
• Available Now
• Quantity Subject to Available Inventory
• Service Cost - lt0.12/kbit
• Power - 20 J/kbyte
• Two-Way Communication
• Guaranteed Packet Delivery

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Data Unit Phase I
Weight 580 g (500 w/o GPS) Dimensions 9.5
L x 2.8 W x 1.5 D SIM Card Reader
Internal Operating Frequency 1616 - 1626.5
MHz Power 0.75W Average (0.6W w/o
GPS) Operating Temperature -30C/60C Duplexing
Method Time Division Duplex Multiplexing
Method TDMA/FDMA Link Margin (w/external
antenna) 12.5 dB average Data Rate 2400 bits
per second Interface Standard RS-232 (AT
commands)
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Data Unit Phase II Next Generation

• 9505 Based Product
• Leverage Current Handset Production
• Work with Celestica and Third Party Vendor to
  Obtain Board Level product.
• 30 Reduction in Physical Size as compared with
  9500
• 15 Less Power Consumption during data calls
• Dial-up and PPP Internet Access Data Services
• Short Burst Data Capable
• Next Generation

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U. of Washington Glider
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Dual Purpose Antenna Iridium and GPS
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