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155 lines
7.4 KiB
HTML
155 lines
7.4 KiB
HTML
<html>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<title>Essential GPS information</title>
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<link rel="stylesheet" type="text/css" href="../css/main2.css" />
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</head>
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<body>
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<h2 id="tophead">CUCC Expedition Handbook</h2>
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<h1>Essential GPS information</h1>
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<p><b>SAFETY</b>. Everyone gets lost on the plateau. Don't get lost for long as this causes rescue plans to be initiated.
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So get this essential data onto your phone (or handheld GPS).
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<p>
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We have a regularly-updated file of the wiggly tracks of the paths we regularly take: from Loser Alm car park to the col, top camp and Homecoming cave,
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and from top camp to Fisch Gesicht Höhle and to Tunnocks's, Balkonhöhle and Organhöhle.
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<p>[It also has the Austrian "kataster boundaries": these are <b>not paths</b> but separate areas with
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different mapping designations.
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These are the smooth, curved lines.]
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The file also includes all the cave entrances for the entire Schvartzmooskögel system (SMK).</p>
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<a href="http://expo.survex.com/expofiles/gpslogs/essentials/essentials2019.gpx"><img src="essentials-screenshot.jpg" alt="screenshot of the GPS file"></a>
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<p><b>Don't be misled by the apparent simplicity</b> of the above tracks. The plateau is very broken and an almost unbroken
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extent of cliffs, holes and imapssable dwarf-larch scrub ("bunde" as it is known on expo).
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You can be 5m from the route and have lost it entirely.
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<h2>How to get this essential data onto your device</h2>
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<p>Either
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<ul>
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<li><a href="#sideways">Download the data to your phone from an online GPS app</a> - recommended
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</ul>
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<p>or
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<ol>
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<li><a href="#down">Download the GPX file from the expo server</a> - hard
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<li><a href="#up">Upload the GPX file to your device</a> - harder
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</ol>
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<h2 id="sideways">Get GPS essentials from an online service</h2>
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<b>BEING UPDATED - OUT OF DATE FILE</b>
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<p>Try this link
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<a href="https://www.wikiloc.com/outdoor-trails/carpark-stonebridge-27029006&utm_source=social&utm_medium=twitter.com&utm_campaign=badge">
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Wikilocs</a>
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from where you can download a short version of the file (track and one waypoint at StoneBridge only)
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or a Google Earth trail (you need to create a Wikiloc account first <em>and be logged-in</em>
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when you click on this). Or here is another <a href="https://www.wikiloc.com/wikiloc/download.do?id=27029006">direct download link</a>.
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<h2 id="down">Download the GPS essentials file from the expo server</h2>
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<p>The most recent 2019 GPX file can be downloaded from here:
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<a href="http://expo.survex.com/expofiles/gpslogs/essentials/essentials2019.gpx" download>essentials2019.gpx</a> (596K).
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<p>
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Phones have a problem with a simple link like that.
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<h2 id="up">Upload the GPS essentials file to your device</h2>
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<p>
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This is where it gets tricky because every device and phone app does this differently.
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<h3>GPS phone apps</h3>
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<p>
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This should work the same way whether you have an iPhone or an Android phone.
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<p>We do not have a recommended app as there is nothing we have found which quite does quite what we need. We are using
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<a href="http://www.gpsessentials.com/">www.gpsessentials.com</a> and <a href="https://osmand.net/">OsmAnd</a> so try one of these first. If you discover a good app, tell everyone about it.
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<p>
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Visit the <a href="http://www.gpsessentials.com/">www.gpsessentials.com</a> website and read the manual (top left, on the menu bar: "Manual") for how to do this.
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Except that the manual doesn't tell you.
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<p>The OsmAnd documentation says:
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<ul>
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<li>"The simplest way to view a track you've downloaded is to tap on it in your device's file manager and choose to open it in OsmAnd. After that, you'll see the track in My places - My tracks or in the Dashboard - My tracks."
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</ul>
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<p>
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More documentation on this to follow...
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<h3>Modern Garmin handheld GPS devices</h3>
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<p>
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Connect the GPS device to your laptop (or the expo laptop) using the USB cable. A folder will open on the laptop showing the contents
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of the device.
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You will see a subfolder called "GARMIN". Open the folder "GARMIN" and copy the file essentials.gpx which you
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downloaded into that folder.
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<h3>Old Garmin handheld GPS devices</h3>
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<p>
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These need the Garmin communication protocol to import cave entrance locations (waypoints) and paths (tracks).
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You can't do it by simply copying files.
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This means that you need special software on your laptop in addition to a USB cable that
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connects your laptop to the Garmin device.
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<p>
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<figure><a href="https://www.cablestogo.com/learning/connector-guides/usb">
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<img src="t/usb-minib-5pin-m-c.jpg"'
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alt="mini-USB socket"
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/></a>
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<figcaption><em>mini-USB b socket</em></figcaption>
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</figure>
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If your Garmin has a <b>mini</b>-USB socket, rather than the usual micro-USB found in phones, then you might have an "old" Garmin handheld, but some modern handhelds still use this old socket.
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<p>Once you have the right cable and connected your handheld to your laptop:
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<ul>
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<li>On a Windows machine, use "GPSbabel for Windows" which has an easy to use graphical user interface:
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<a href="https://www.gpsbabel.org/download.html">download GPS Babel</a>
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<li>On a Linux machine the core gpsbabel command line utility is probably already installed;
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but there is no simple, easy to use graphical interface.
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Instead you must use other software such as QGIS or Viking (download using your usual Linux software installer)
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which uses gpsbabel to talk to your device.
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If this doesn't work then there are no useful error messages from Viking.
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</ul>
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<h2 id="down">Nerds only: getting the <i>very latest</i> GPS essentials file </h2>
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<p>
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We create a new version of this essential GPS data during expo and as expoers discover new entrances and
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devise new routes to reach them.
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<p>
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To regenerate the <i>most recent version</i> which contains the cave entrances discovered during expo
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you will need to ask someone who is competent in logging into the server and running scripts.
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<p>The data is in the version control system repository ::loser:: in
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<pre>
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loser/gpx/
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</pre>
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and is generated from the survex data by a script. It is best to do this on a laptop which has the entire ::loser::
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repo downloaded onto it (e.g. the <i>expo laptop</i>) rather than on the server itself as the server can run out of memory doing this.
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<p>The most recent track data will have been uploaded by an expoer into e.g.
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<pre>
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expofiles/gpslogs/2019/MichaelSargent/col-to-homecoming-msargent-2019-07-14_18-38_Sun.gpx
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</pre>
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<p>and this will need to be hand-edited into script-generated essentials.gpx file.
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<p>The most recent 2019 GPX file can be downloaded from here:
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<a href="http://expo.survex.com/expofiles/gpslogs/essentials/essentials2019.gpx" download>essentials2019.gpx</a> (596K).<br>
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This is actually entirely hand-edited from original tracks. The only survex data it uses is the entrances waypoints which are exported
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by the script which has been hand-edited in. It also has the kataster boundaries hand-edited in.
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<p>Last year's (17 July 2018)
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can be downloaded from here : <a href="essentials.gpx" download>essentials.gpx</a> (190K).
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(This is a symlink to loser/gpx/essentials.gpx).
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<hr />
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<ul id="links">
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<li><a href="index.htm">Expedition Handbook</a>
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<ul>
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<li><a href="survey/index.htm">Surveying guide</a> - Overview</li>
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<li><a href="look4.htm">Prospecting guide</a> – Overview</li>
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<li><a href="rescue.htm">Rescue guide</a></li>
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</ul></li>
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<li><a href="../index.htm">Back to Expedition Intro page</a></li>
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<li><a href="../../index.htm">Back to CUCC Home page</a></li>
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</ul>
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</body>
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</html>
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