Global Navigation Satellite Systems Engineering, Policy, and Design
Figures 1 & 2Spacecraft in low Earth orbit (LEO), at altitudes below 3,000 kilometers, remain within the main Global Positioning System (GPS) signals’ Earth coverage. Spacecraft employing GPS at these altitudes enjoy signal availability and navigation and timing performance emulating that of terrestrial users.
By Inside GNSS
u-blox’ LARA-R3121 ModuleThalwil, Switzerland-based u-blox has released its LARA-R3121 module that combines a single-mode long-term evolution (LTE) category one modem and a GNSS positioning engine for internet of things (IoT) and machine-to-machine (M2M) devices, the company said.
LARA-R3121’s applications include smart utility monitoring; connected health and patient monitoring; smart buildings; security and video surveillance; smart payment and point-of-sale systems; and such wearable devices as action cameras.
By Inside GNSS
Metro Manila, PhilippinesThe 8th annual Multi-GNSS Asia (MGA) Conference will take place November 14-16, 2016, at Sofitel Philippine Plaza, in Manila (Metro Manila), Philippines.
Online registration is available.
By Inside GNSS
Inside Unmanned Systems and microdrones will host a free web seminar, “Part 107 Rule: Impact on Key Application Segments in the Commercial Drone Market,” on Wednesday, September 28, 2016 at noon EDT.
The initial discussion will focus on the implications of the Federal Aviation Administration (FAA) Part 107 rule on unmanned aerial systems (UAS) for mapping, surveying, and inspection applications, but anyone interested in using drones for commercial purposes is welcome to participate.
By Inside GNSSHow do you win when you are really losing?
Play a different game, move the goalposts, change the rules.
For several years now, a series of would-be wireless broadband service providers have been attempting to convince the Federal Communications Commission (FCC) to repurpose radio frequency spectrum near the GPS L1 band.
Past efforts have failed because of the transmissions’ demonstrated harmful effects on GPS and other GNSS signals. Now a new contender is trying to gain FCC’s approval by changing the way that those effects are measured.
By Inside GNSS
One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder. 
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST
1. BREXIT
Harwell Didcot, United Kingdom
Mikel Miller’s favorite equationReturn to main article: "Mikel Miller: Science, Service, and Family"
COMPASS POINTS
GNSS event that most signified to you that GNSS had ‘arrived’
Testing of the initial handheld units from vendors such as Trimble’s two-channel GPS receiver and Rockwell Collins’ PLGR. “We thought, ‘What an amazing capability to have a handheld device that all you had to do was turn it on and it told you where you were – wow!’”
By Inside GNSS
Figures 1-3Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe’s Galileo Operations and Evolution.
By Günter W. Hein
Q: Are there low-cost and low-weight options for GNSS IF storage?
By Inside GNSS
The Miller family: Casey, Colleen, Mikel, Krista, Lauren, Trevor, and Megan.It has been a long journey to success for Mikel M. Miller, the U.S. Air Force’s lead scientist for positioning, navigation, and timing (PNT) science and technology development.
By Inside GNSS
