6/10/2023 0 Comments Netatalk force group![]() This reflected part therefore travels a longer path to the antenna. Part of the signal is reflected by the nearby environment and objects and reaches the GNSS antenna with some delays. The measuring method is based on the fact that the antenna does not only pick up the direct satellite signal. Researchers, for instance, can measure the wave-like propagation of an earthquake and the rise or fall of a coastal area. Makan Karegar from the Institute of Geodesy and Geoinformation at the University of Bonn. ![]() "This has recently allowed our research group to measure elevation changes in the uppermost of soil layers, without installing additional equipment," explains Dr. For some years now, it has also been possible to measure the distance between the antenna and the ground surface using a new method. They do this using the US GPS satellites and their Russian counterparts, GLONASS. GNSS receivers can determine their positions to an accuracy of a few mm. The study, which was carried out by geodesists from the University of Bonn, investigated the location of a precise GNSS antenna in Boston (Massachusetts) as an example. At least that is what the study now published in the Geophysical Research Letters shows. Geodesy, a branch of the Earth Science to study Earth's gravity field and its shape, on the other hand, has benefited from the drastic reduction in human activity. ![]() Many of those affected by the lockdown suffered negative economic and social consequences. The journal Geophysical Research Letters now reports on this.Ī number of countries went into politically decreed late hibernation at the onset of the Covid-19 pandemic. More precise geodetic data are important for assessing flood risks and for improving earthquake early warning systems. The results show which factors should be considered in the future when installing GPS antennas. A study by the University of Bonn now shows that the quality of these measurements may have improved significantly during the pandemic, at least at some stations. view moreĮmerging use of Global Navigation Satellite System (GNSS) makes it possible to continuously measure shallow changes in elevation of Earth surface. The Netatalk website is where new releases and other news about the project are posted.Image: The parking lot at a supermarket in Boston where the measurements were taken. Subscribe and participate, or read archived discussion threads at: Netatalk contributors and maintainers interact with each other primarily on the netatalk-admins and netatalk-devel mailing list. Please feel free to edit existing and create new articles. WikiĬollaborative articles can be found on the Netatalk wiki hosted on GitHub. The latest version of the Netatalk manual can be found at:Įach Netatalk component also has a *NIX man page which can be accessed on the command line, f.e. PRs are automatically picked up by GitHub CI, which runs the builds, integration tests, as well as static analysis scan on SonarCloud. Contributionsīug reports and feature requests can be filed as GitHub issue ticket:īefore contributing code to the project, please read the guidelines in the wiki on how to prepare a PR that is likely to be accepted by the maintainers: Modern AFP features such as Bonjour, Time Machine, and Spotlight are also supported. Of Classic Mac OS metadata (resource forks) as well as user authentication methods (UAMs) compatible with Classic Mac OS clients that don't support modern cryptography. ![]() So Netatalk can act as a seamless bridge between new and old Macs.Ĭompared to other Open Source file sharing solutions such as NFS or Samba, Netatalk delivers high transfer speeds and full integration The latest macOS at the time of writing (macOS 13 Ventura) still comes with an AFP client, If you're running a network of older Macs, in particular those running OS X 10.8 Mountain Lion or earlier, all the way back to Classic Mac OS,Īre well served by running a Netatalk AppleShare server. Netatalk is a freely-available Open Source fileserver that implements the Apple Filing Protocol (AFP) 3.4.ĪFP was the primary file sharing protocol for Apple Macintosh and Apple II computers from 1987 to 2013.Ī *NIX/*BSD system running Netatalk is capable of serving many Macintosh clients simultaneously as an AppleShare file server.
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