Decommissioning of my neighborhood LORAN-C http://lakeconews.com/content/view/14067/919/ Middletown LORAN station's closure signals end of era, change in technology 38.7827,-122.4958 --

I have a GPS puck that I connect to my cellphone (running a Java app) via Bluetooth. The GPS claims to be able to use WAAS, and I don't doubt it, but I'd like to confirm that it's working. I think that, if I knew the PRNs of the birds the thing used, that would prove it, but unfortunately, the Java app (GPSMid) doesn't provide that info. Is there some other way to find out? GPSMid displays...

Request Comments: iPhone GPS Performance Compared to dedicated GPS receiver of comparable price. I'm interested in user experiences with the iPhone GPS compared to dedicated GPS Receivers. Thanks -Sam

Carrier-Phase Anomalies Detected on SVN-48 May 17, 2010 By: Brady O' Hanlon, Mark L. Psiaki, Steven P. Powell, Paul M. Kintner Jr. Anomalous behavior of the L1 C/A-code carrier phase has been detected on PRN07/SVN-48. The anomalies are sudden step-like changes of phase by about 10 degrees/5 millimeters. These steps are followed by negative steps of the same magnitude that restore the original...

May 14, 2010 NOAA PRESS RELEASE NOAA's Modernized Positioning System Key to Improved Mapping, Emergency and Land Planning NOAA's National Geodetic Survey - the official U.S. government source for determining precise latitude, longitude and elevation - is undergoing a modernization effort that takes into account advances in GPS and other technologies. The effort is important to ...

May 13, 2010 FROM THE NEWS Next-Generation GPS Satellite Ready for Launch BY: BEN IANNOTTA Air Force Times 13 May, 2010 When the first of the Boeing-built Global Positioning System 2F satellites blasts

Ref: http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010093 SUBJ: SVN47 (PRN22) FORECAST OUTAGE SUMMARY JDAY 134/1154 - JDAY 134/1853 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2010093 NANU DTG: 141910Z MAY 2010 REFERENCE NANU: 2010088 REF NANU DTG: 061433Z MAY 2010 SVN: 47

Setting SA to zero marked the difference between reliance on GPS for not getting lost and using it for innovative civilian applications. Despite a pledge from the US not to use SA again, I still see paranoid references to its reinstatement. 1 May was the tenth anniversary. http://pnt.gov/ --- CHAS

A New Perspective: SVN-49 and L5 Revisited http://www.gpsworld.com/defense/a-new-perspective-svn-49-and-l5-revisited-9933?print=1 "It seems that everywhere I go these days, someone wants to discuss the future of SVN-49 or IIR-20(M) which, although it has PRN01 assigned and is enroute to its new orbit location as part of the enhanced 24 constellation, has never been set healthy. Everyone has...

Dear all, Is there a way of computing the *road* distance (i.e., the distance that you would travel if you were to use the road network) between two GPS coordinates automatically (e.g., from Python using)? Cheers, Luis

I would like to test two GPS antenna with one same GPS receiver. It is really inconvenient to switch the antenna back and forth manually, since my computer is not close to the test lab, and I can only run my software in my computer, and the GPS receiver at the lab. I can't bring my computer to the lab, or install my software to a test computer at the lab. Is there any RF GPS Antenna awitch...

We are a group of students traveling to Central America for an engineering project. We have little to no experience with handheld GPS units and were wondering which would be optimum for our application. Objective: -create a map of a particular village with houses and other important infrastructure included -calculate distances -note important elevations (an embedded barometric altimeter would be

"The Garmin nuvi 3790T is a very impressive device, because of its sleek hardware that's already earned it the "The Blade" nickname, but also because of it's sheer responsiveness unseen on a GPS unit so far. To navigate the menus but particularly for the map display while navigating or scrolling the map in exploring mode with "pinching" and "expanding"...and the software isn't even final..and...

Speedy IIF Will Get There Faster May 4, 2010 http://www.gpsworld.com/gnss-system/news/speedy-iif-will-get-there-faster-9901?print=1 Just before midnight on Thursday, May 20, the first of a new generation has a date with destiny on the Cape Canaveral launch pad. GPS spacecraft IIF-1 has a launch window extending from 11:29 to 11:48 p.m., Eastern daylight time. It’s in a hurry. Instead of...

PBS usually 20:00 local (US & Canada). May have some references to GPS monitoring. -- gmail originated posts are filtered due to spam.

Forgive the rant, but I only just found out about the upgrade policy on second units. My Garmin Quest has been using City Select Europe v7 since new. I have also used the 'Unlock Additional Garmin Unit' option and have unlocked the City Select Europe v7 for my GPSMAP 60c. City Select Europe has been discontinued in favour of City Navigator Europe, and a few days ago I paid my $75 (plus tax)...

Septentrio Reports Frequency Spikes in Compass M1 Satellite Signals http://www.insidegnss.com/node/2061

April 20, 2010 FROM THE NEWS U.S. Air Force Prepares First IIF GPS Satellite for Launch on May 21 Inside GNSS 19 April, 2010 Launch of the first GPS Block IIF (follow-on) satellite is currently scheduled for May 21 from Cape Canaveral aboard a Delta-IV Evolved Expendable Launch

A Satellite, Some Signal Specs, and, Sorry, A Step Sideways April 28, 2010 By: Alan Cameron GNSS Design & Test Newsletter, April 2010 http://www.gpsworld.com/gnss-system/a-satellite-some-signal-specs-and-sorry-a-step-sideways-9880?print=1 Galileo has forged ahead on two fronts, satellite readiness and signal specification. The payload for the first in-orbit validation (IOV) Galileo satellite...

Ref: http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010081 SUBJ: SVN56 (PRN16) FORECAST OUTAGE JDAY 123/1200 - JDAY 124/0000 1. NANU TYPE: FCSTMX NANU NUMBER: 2010081 NANU DTG: 282247Z APR 2010 REFERENCE NANU: N/A REF NANU DTG: N/A