Modernizing Loran Command and Control U.S. Coast Guard Loran Support Unit Pacific Ave. Wildwood, NJ Raymond Agostini James R. Betz International Loran Association Convention and Technical Symposium Washington D.C., USA October 2002

3. Remote Automated Integrated Loran (RAIL) Computer System 4. Locus Casualty Control Receiver Set 2. State-of-the Art Cisco Router Communications Equipment Suite Out with the old and in with the new. 1.New Frame Relay Data Communication Network 5. RAIL Envelope Pulse Analyzer (EPA)

Broad Functional Block Frame Relay TCP/IP Protocol Monitor Site

The Network

Communications Suite DSU Router Network Switch Redundant Power Supply Wireless Backup Comms Modem

RAIL Computer System RAIL Chassis With Protective Front Cover Monitor Keyboard Locus Printer

RAIL Graphical User Interface Home Screen – Shows a complete overview of equipment status and displays: alarms, data and access to equipment control screens The GUI is the centerpiece of RAIL and allows the operator To command and control the Loran station’s equipment. Equipment Control Screens for: Automatic Blink System (ABS) Locus Casualty Control Receiver Set (CCRS) Frequency Standard/Time of Transmission Monitor (TTM) RAIL Envelope Pulse Analyzer (EPA) Local Site Operating Set (LSOS) Remote Control Interface (RCI)

RAIL GUI – Home Screen

RAIL GUI – Local Charts

RAIL GUI – CCRS Data

RAIL GUI – ABS Control

RAIL Envelope Pulse Analyzer Compuscope M A/D Digital Storage PCI Board 12-bit resolution 1 MB on-board memory 2 Input Channels Analog or TTL Trigger Input Analog or TTL Ext Clock Input

RAIL GUI – RAIL EPA Control

RAIL GUI – Pulse Analysis

RAIL GUI – Archive Screen

Interim Equipment Rack Layout

Immediate System Improvements The RAIL system, Locus CCRS & Communications Equipment provides numerous benefits: Replaces antiquated command & control equipment with state-of-the-art, highly reliable, fault tolerant equipment. Improves the local interface with the Loran Station. Improves reliability and availability of the Loran signal. Improves remote Command and Control to LCCS. Improves archiving functions and integrity of data.

Future Plans The RAIL system, along with the Communications Equipment will provide the interface to two systems in development:  Graphical User Interface for TFE.  Graphical User Interface for the new TCS.  Local and Remote Electronic Interface for TFE.  Local and Remote Electronic Interface for TCS. Timing and Frequency Equipment (TFE) Transmitter Control System (TCS) for the new SSX Transmitter

End Presentation Questions?