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sci.geo.satellite-nav (Global Satellite Navigation) (sci.geo.satellite-nav) Discussion of global navigation satellite systems (GNSS). Topics include the technical aspects of GNSS operation, user experiences in the use of GNSS, information regarding GNSS products and discussion of GNSS policy (such as GPS selective availability).

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Template for Coordinate Transformations and Geodetic Mathematics by Fred
Hello, who develops programs with geodetic functionality like coordinate transformations or distance calculations, can use geodetic functions of my GeoDLL. The Dynamic Link Library can easily be used with most of the modern programming languages like C, C++, C#, Basic, Delphi, Pascal, Java, Fortran, Visual-Objects and others or as ANSI C source code. As most of the programs with geodesic...
June 9th 17 10:09 AM
by Fred Go to last post
0 31
New GLONASS ground Station in Nicaragua by [email protected]
Put into Google Maps: 12.1175,-86.3245
April 17th 17 10:05 PM
by Alan Browne Go to last post
4 109
Beans by Zack Ryan
Where are the beans?
March 17th 17 01:41 AM
by Zack Ryan Go to last post
0 95
Philips / Leica ap-navigator MK10 DGPS by [email protected]
On Friday, August 27, 1999 at 3:00:00 AM UTC-4, Harry Drenth wrote: Does anyone know something about the MK10s * Communication protocol * supporting software TIA, Harry I have an MK 10 and a manual. I may be be able to look up what you need, Meanwhile my unit is not working properly. Do you know where I can get it repaired ?
2 354
Puzzling change in trackpoint rate by Terry Pinnell[_3_]
Seems fairly quiet here but I'm hoping that one of the resident experts can help me get to the bottom of some odd behaviour please. I've tried several GPS, iPhone and iPad forums but still have no satisfactory resolution. I can't understand why my iPhone 6S+ recently started recording many more trackpoints than...
(Multi-page thread 1 2)
14 472
Why are a few timestamps missing? by Terry Pinnell[_3_]
I've been examining the GPS recordings of walks made on my iPhone. The GPX files should of course contain one text line for each position recorded, containing position, altitude and a timestamp. But occasionally (less than 1%) the timestamp is obviously missing. The 4th line of this small extract shows an example: trkpt...
October 13th 16 12:14 AM
by Alan Browne Go to last post
3 338
GPX Track Editor for Android by [email protected]
I have written a track editor that runs on Android tablets, and it is now available for beta test on the Google Play app store at: https://play.google.com/apps/testing/com.lewlasher.trackEditor GPX Track Editor is similar in functionality, as a first approximation, to other track editors such as GPS TrackMaker, which I have been using for years on the Windows platform, primarily to make maps of...
7 390
What3Words = location (9m resolution) by Alan Browne
http://what3words.com/ eg: reduce.bravest.spoke is ... ? -- She hummed to herself because she was an unrivaled botcher of lyrics. -Nick (Gone Girl), Gillian Flynn.
9 569
Google to provide raw GPS measurements by [email protected]
An article in the July 2016 GPS World magazine states that raw GPS measurements will be available to apps in the Android N operating system, which will be released later this year. This means you can get pseudoranges, doppplers, and carrier phase from a phone or tablet!
July 21st 16 03:06 PM
by Alan Browne Go to last post
3 363
Marconi Prize for 2016 Goes to Brad Parkinson by Sam Wormley[_2_]
Marconi Prize for 2016 Goes to Brad Parkinson http://gpsworld.com/marconi-prize-for-2016-goes-to-brad-parkinson/ The Marconi Society has awarded its 2016 Marconi Prize to Bradford Parkinson. The $100,000 prize, given annually, recognizes major advances in the field of information and communication science which benefit humanity. Parkinsonís contributions to the development of GPS...
June 28th 16 05:19 AM
by Terje Mathisen[_3_] Go to last post
2 426
Large-scale technique to produce quantum dots by Sam Wormley[_2_]
Large-scale technique to produce quantum dots https://www.sciencedaily.com/releases/2016/05/160519161227.htm Scientists have demonstrated a method to produce significant amounts of semiconducting nanoparticles for light-emitting displays, sensors, solar panels and biomedical applications. Journal Reference:
May 20th 16 10:41 PM
by Sam Wormley[_2_] Go to last post
0 376
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016031 by Sam Wormley[_2_]
2016031------------------------ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016031 SUBJ: SVN70 (PRN32) FORECAST OUTAGE SUMMARY JDAY 140/0923 - JDAY 140/1402 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2016031 NANU DTG: 191409Z MAY 2016 REFERENCE NANU: 2016030 REF NANU DTG: 131610Z MAY 2016 SVN: 70
May 19th 16 05:11 PM
by Sam Wormley[_2_] Go to last post
0 388
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016030 by Sam Wormley[_2_]
2016030------------------------ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016030 SUBJ: SVN70 (PRN32) FORECAST OUTAGE JDAY 140/0850 - JDAY 140/2050 1. NANU TYPE: FCSTDV NANU NUMBER: 2016030 NANU DTG: 131610Z MAY 2016 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 70
May 13th 16 04:57 PM
by Sam Wormley[_2_] Go to last post
0 356
Testing quantised inertia on the emdrive by Sam Wormley[_2_]
Testing quantised inertia on the emdrive http://arxiv.org/abs/1604.03449v1 It has been shown that truncated cone-shaped cavities with microwaves resonating within them move slightly towards their narrow ends (the emdrive). Standard physics has no explanation for this and an error has not yet been found. It is shown here that this effect can be predicted by assuming that the inertial...
May 9th 16 01:07 AM
by Sam Wormley[_2_] Go to last post
0 346
FCC Opens GPS-Adjacent Ligado Proposal for Comment by Sam Wormley[_2_]
FCC Opens GPS-Adjacent Ligado Proposal for Comment http://www.insidegnss.com/node/4933 The Federal Communications Commission (FCC) is officially asking for feedback on a proposal by Ligado Networks to repurpose frequencies near the GPS band for a terrestrial broadband network. The long-delayed public notice and comment period is a step in the approval process, although there is no...
April 29th 16 09:38 PM
by Sam Wormley[_2_] Go to last post
0 321
bcm4774 used in ... ???? by Chris[_4_]
Is anybody aware of a smartphone - or any other gadget - that uses the broadcom BCM4774 location hub? First consumer applications using this chip should be on the market now...
April 8th 16 08:01 PM
by Chris[_4_] Go to last post
0 377
Linux CLI program to output simple maps by Emanuel Berg
I'm writing an article on the Kon-Tiki expedition. The article will look much like this earlier article I did. It is in Swedish, but you get the picture. It is not scientific or anything and what I need is a couple of simple but clear maps: Peru, Polynesia, and so. I'm a CLI, LaTeX, gnuplot etc. user so it would be cool to have a program to produce simple maps, and not just for this article God...
(Multi-page thread 1 2)
March 28th 16 06:31 PM
by Emanuel Berg Go to last post
11 751
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016023 by Sam Wormley[_2_]
2016023------------------------ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016023 SUBJ: SVN45 (PRN21) FORECAST OUTAGE JDAY 078/1800 - JDAY 079/0600 1. NANU TYPE: FCSTMX NANU NUMBER: 2016023 NANU DTG: 162130Z MAR 2016 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 45 PRN: 21
March 16th 16 09:24 PM
by Sam Wormley[_2_] Go to last post
0 365
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016020 by Sam Wormley[_2_]
2016020------------------------ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016020 SUBJ: SVN55 (PRN15) FORECAST OUTAGE SUMMARY JDAY 064/0024 - JDAY 064/0552 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2016020 NANU DTG: 040551Z MAR 2016 REFERENCE NANU: 2016015 REF NANU DTG: 261945Z FEB 2016 SVN: 55
March 4th 16 12:52 PM
by Sam Wormley[_2_] Go to last post
0 414
Garmin to acquire outdoor tracking company DeLorme by Sam Wormley[_2_]
Garmin to acquire outdoor tracking company DeLorme http://geospatial-solutions.com/garmin-to-acquire-outdoor-tracking-company-delorme/ Garmin Ltd. has entered into an agreement to acquire substantially all of the assets of DeLorme, a privately held company that designs and markets consumer-based satellite tracking devices with two-way communication and navigational capabilities. ...
February 19th 16 10:21 PM
by Alan Browne Go to last post
1 574
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