TAG: eLoran

eLoran and Loran testing underway in late June

June 5, 2017By

The Loran sites at Havre, Montana; George, Washington; and Fallon, Nevada, will continuously broadcast from 0900 (MST) June 20  through 1200 (MST) on June 30. The sites will operate on the 5990 rate but occasionally may operate at other rates. Only the site at Fallon will operate as an eLoran site. The sites at Havre and George will operate as... read more

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Continental Electronics patents new eLoran transmit method, system

May 8, 2017By

Texas company Continental Electronics has patented a transmitter system and method for construction of low-frequency antenna towers significantly lower in height than previously needed for identical coverage. “One obstacle to deploying eLoran systems has been the sheer height needed for the transmission towers, each of which requires significant acreage,” said Mike Rosso, vice president of Dallas-based Continental Electronics. “Tower height... read more

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Alt-PNT receivers emphasize low-power requirements

April 17, 2017By

A new series of integrated eLoran/Chayka/GNSS receivers emphasize low-power requirements and small size for alternative positioning, navigation and timing (PNT) to reduce risks of GNSS denial. Loradd++, from Netherlands-based firm Reelektronika, consists of a receiver board of 60 x 30 x 8 millimeters, consuming less than 500 milliwatts (3.3 volts) in continuous operation. The Loradd++ can be used with either... read more

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Name the alt-PNT leader for a $50 gift card

February 13, 2017By

Quick, what’s the best alternative when GNSS signals are not available? This is not a simple question, but we’re asking for a simple answer. Among the multiple avenues pursued at the U.S. Defense Advanced Research Projects Agency (DARPA), as described in February’s PNT Roundup, which has the most promise? Inertial sensors Chip-scale atomic clocks Cell signals Low-Earth orbit communications satellites... read more

Wildwood eLoran transmitter starts broadcasting Feb. 6

February 2, 2017By

Update (2/9/17): The Wildwood transmitter is back on the air after a presumed lightning strike affected transmissions. The transmitter stopped broadcasting at 5:35 a.m. EST on Feb. 9. Testing took place 5:35 a.m. to  8:19 EST, after which it came back on the air, reports Steve Bartlett, vice president of operations for UrsaNav Inc. The transmitter will be taken off... read more

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FAA releases National Airspace System Navigation Strategy

November 10, 2016By

The United States Federal Aviation Administration (FAA) has released its Performance-Based Navigation (PBN) National Airspace System (NAS) Navigation Strategy 2016, the result of a concerted year-long effort by FAA and aviation industry stakeholders. It describes how the FAA intends to transition U.S. NAS operations over the near- (2016–2020), mid- (2021–2025) and far-term (2025–2030) from predominantly point-to-point navigation, reliant on hundreds... read more

Spectracom adds resiliency for military communications system

July 25, 2016By

Secondary receiver uses eLoran to back up GPS time Spectracom has been selected to provide Interference, Detection and Mitigation (IDM) capability to its SecureSync precision time and frequency reference system to support Rohde & Schwarz Benelux B.V. and the Netherlands Ministry of Defence for secure long-range military communications systems. The upgrade, which is based on a secondary receiver that extracts... read more

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South Korea to build eLoran system after jamming incident

May 3, 2016By

South Korea will award a contract this month to secure technology required to build an eLoran system as an alternative to GPS, reports the Australian Broadcasting Company (ABC). The announcement follows South Korea pointing the finger at North Korea for jamming its GPS signal reception in late March. The South Korean eLoran plan envisions setting up coastal transmitters by the end... read more

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