LORAN

related topics
{system, computer, user}
{math, energy, light}
{ship, engine, design}
{city, large, area}
{service, military, aircraft}
{company, market, business}
{rate, high, increase}
{water, park, boat}
{island, water, area}
{black, white, people}
{@card@, make, design}
{line, north, south}
{math, number, function}

LORAN (LOng RAnge Navigation[1]) is a terrestrial radio navigation system using low frequency radio transmitters in multiple deployment (multilateration) to determine the location and speed of the receiver.

The most recent version of LORAN in use is LORAN-C, which operates in the low frequency portion of the electromagnetic spectrum from 90 to 110 Kilohertz. Many nations have used the system, including the United States, Japan, and several European countries. Russia uses a nearly identical system in the same frequency range, called CHAYKA.

LORAN use has been in steep decline, with the satellite based Global Positioning System (GPS) being the primary replacement. However, there have been attempts to enhance and re-popularize LORAN, mainly to serve as a backup and land-based alternative to GPS and other Global navigation satellite system (GNSS) systems.

The current LORAN system has been phased out in the United States and Canada. The United States Coast Guard (USCG) and Canadian Coast Guard (CCG) ceased transmitting LORAN-C (and joint CHAYKA) signals in 2010.[2][3]

Contents

Full article ▸

related documents
Rectifier
Loading coil
Webcam
Digital Enhanced Cordless Telecommunications
Set-top box
Visual display unit
Universal asynchronous receiver/transmitter
Video
Microsoft Windows
BIOS
Atmel AVR
Cray-1
Handoff
Three-phase electric power
Packet radio
Flip-flop (electronics)
Single-sideband modulation
Simple Mail Transfer Protocol
Mandriva Linux
10 Gigabit Ethernet
Submarine communications cable
Quality of service
Amstrad CPC
Cache
Reduced instruction set computer
Commodore 1541
Process (computing)
Computer multitasking
RT-11
Microsoft Word