The National Office for Integrated and Sustained Ocean Observing and Predictionhtttp://www.ocean.us.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

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

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

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

Current Status of Iridium

Current Status of Iridium

Current Status of Iridium

Dial-Up Data

PSTN

Iridium Gateway

D900

CorporateNetwork

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)

Internet

Iridium Gateway

D900InternetServer

Direct-Internet

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

Iridium Gateway

D900SBM Network

Equipment

Internet

UserApplication

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.

Short Burst Data Service

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 - <$0.12/kbit Power - 20 J/kbyte Two-Way Communication Guaranteed Packet Delivery

Data Unit Phase I

Data Unit Phase I

Weight: ~580 g (~500 w/o GPS)Dimensions: 9.5” L x 2.8” W x 1.5” DSIM Card Reader: InternalOperating Frequency: 1616 - 1626.5 MHzPower: 0.75W Average (0.6W w/o GPS)Operating Temperature: -30°C/+60°CDuplexing Method: Time Division DuplexMultiplexing Method: TDMA/FDMALink Margin (w/external antenna): 12.5 dB averageData Rate: 2400 bits per secondInterface: Standard RS-232 (AT commands)

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

Data Unit Phase II – Next Generation

U. of Washington Glider

Dual Purpose Antenna – Iridium and GPS