TAG: L1

USAF to test increased GPS signal power Jan. 25

January 24, 2017By

Beginning Wednesday, Jan. 25, Air Force Space Command (AFSPC) will conduct a limited-duration test implementing an increase of the Ll C/A power level on the GPS Block IIR-M and llF satellites — a total of 19 satellites. The C/A power will remain within IS-GPS-200-H specifications, and the power increase is not expected to increase the noise floor by more than... read more

EGNOS Services Ensured Long Term, Thanks to SES-5 GEO Satellite

September 2, 2015By
SES-5-EGNOS-sat-O

After extensive ground and space testing, the SES-5 GEO satellite has entered into the European Geostationary Navigation Overlay Service (EGNOS) operational platform, broadcasting EGNOS Signal-In-Space (SIS), according to the European GNSS Agency (GSA). SES-5 — which replaces Inmarsat-4F2 — will ensure reliable EGNOS services until 2026. It has been introduced through EGNOS System Release V241M, which will enable a range of performance improvements.... read more

This article is tagged with , , , , , , and posted in Featured Stories, GNSS, Latest News

Septentrio PolaRx2 Receiver Orbits Earth on Board TET-1 Satellite

September 18, 2013By
The TET-1 Satellite has Septentrio on board.

Septentrio announced today that a PolaRx2 receiver has reached more than 330 hours of successful operation on board “Technologie-Erprobungs-Träger 1” (TET-1), the first satellite of the German On-Orbit-Verification program. The Septentrio receiver is the backbone of the Navigation and Occultation Experiment (NOX) developed by German Aerospace Center (DLR). The purpose of the experiment is to prove the suitability of commercial-off-the-shelf... read more

This article is tagged with , , , , , , and posted in Latest News, OEM

A New Standard for L1/L2 GPS Static Receivers?

June 13, 2013By
X90_Wellsvilles

In the more than 100+ articles I’ve written for GPS World magazine over the past seven years, I don’t think I’ve ever written about a new product introduction like you will see below. I tend to focus on GNSS and geospatial technologies rather than a brand-specific products and services. In fact, last week I had an outline prepared for my... read more

This article is tagged with , , and posted in Opinions, Survey

Innovation: Evil Waveforms

May 1, 2013By
Innov-evilwave-O2

Generating Distorted GNSS Signals Using a Signal Simulator
In this month’s column, our authors discuss a set of GPS and Galileo evil-waveform experiments they have carried out with an advanced GNSS RF signal simulator. Their results will help to benchmark the effects of distorted signals and perhaps lead to improvements in GNSS signal integrity. read more

GPS IIF-3 Satellite Now Transmitting L1, L2 Signals

October 4, 2012By
A Delta IV rocket lifts-off with an advanced GPS satellite from Cape Canaveral on Thursday. (Credit: ULA/Atkeison).

Video of launch. UPDATE: The SVN65/PRN24 L5 transmitter has now been switched on. L5 is the civilian safety-of-life GPS signal, designed to meet demanding requirements for safety-of-life transportation and other high-performance applications. UPDATE: The GPS Block IIF-3 satellite, SVN65, began transmitting L1 and L2 signals as PRN24 on October 8. A number of stations of the International GNSS Service are... read more

This article is tagged with , , , , , , and posted in GNSS, Latest News

JAVAD Asserts Filters Protect GPS L1, L2, L5; GLONASS L1, L2; Galileo L1, L5

September 14, 2012By

Javad Ashjaee, founder and CEO of JAVAD GNSS, has filed a letter with the U.S. Federal Communications Commission (FCC) concerning his company’s development of technical possibilities in GNSS filter designs and components. He states “I hope this will be helpful in establishing realistic guidelines for the characteristics of high-precision GNSS receivers that will be used in critical applications.” Below is... read more

This article is tagged with , , , , , , , and posted in GNSS

PRN Codes Assigned to Russian SBAS Satellites

April 25, 2012By

According to a spokesperson from the Space and Missile Systems Center, GPS Directorate, the Russian Space Agency (RSA) has been assigned L1 pseudorandom noise (PRN) C/A codes for its System of Differential Correction and Monitoring (SDCM) transponders on the Luch series of geostationary relay satellites. read more

This article is tagged with , , , , , , , and posted in GNSS, Latest News