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  {block name=title}GPSBabel development:NaviGPS GT-11/BGT-11 Download (navilink){/block}
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  <div xmlns="http://www.w3.org/1999/xhtml" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">NaviGPS GT-11/BGT-11 Download (navilink)</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="fmt_navigonwpt.html">Prev</a> </td><th width="60%" align="center">Chapter 3. The Formats</th><td width="20%" align="right"> <a accesskey="n" href="fmt_sbp.html">Next</a></td></tr></table><hr /></div><div xmlns="http://www.w3.org/1999/xhtml" class="section"><div class="titlepage"><div><div><h2 class="title" ><a id="fmt_navilink"></a>NaviGPS GT-11/BGT-11 Download (navilink)</h2></div></div></div><p class="fmtcapshdr">
    This format can...
    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p class="fmtcapsitem">
          read and write waypoints
        </p></li><li class="listitem"><p class="fmtcapsitem">
          read and write tracks
        </p></li><li class="listitem"><p class="fmtcapsitem">
          read and write routes
        </p></li></ul></div><p>This format has the following options: <a class="link" href="fmt_navilink.html#fmt_navilink_o_nuketrk" title="nuketrk option">nuketrk</a>, <a class="link" href="fmt_navilink.html#fmt_navilink_o_nukerte" title="nukerte option">nukerte</a>, <a class="link" href="fmt_navilink.html#fmt_navilink_o_nukewpt" title="nukewpt option">nukewpt</a>, <a class="link" href="fmt_navilink.html#fmt_navilink_o_nukedlg" title="nukedlg option">nukedlg</a>, <a class="link" href="fmt_navilink.html#fmt_navilink_o_datalog" title="datalog option">datalog</a>, <a class="link" href="fmt_navilink.html#fmt_navilink_o_power_off" title="power_off option">power_off</a> .</p><p>
	GPSBabel supports the Navilink protocol used by the
	<a class="ulink" href="http://www.locosystech.com/product.php?zln=en&amp;id=5" target="_top">Locosys GT-11</a> 
	and
	<a class="ulink" href="http://www.locosystech.com/product.php?zln=en&amp;id=30" target="_top">GT-31</a>
	GPS receivers. These are sold under a variety of names including:
</p><table border="0" summary="Simple list" class="simplelist"><tr><td>NaviGPS</td><td>BGT-11</td><td>Amaryllo</td></tr><tr><td>NaviGPS-BT</td><td>GT-31</td><td> </td></tr><tr><td>GT-11</td><td>BGT-31</td><td> </td></tr></table><p>
</p><p>
	This format is used for both the serial protocol used on
	the USB link and for the files which can be copied from the
	internal memory to the SD card using recent firmware versions.
</p><p>
	If you specify a serial port for the file (.e.g. "COM1", "/dev/ttyUSB0")
	to be read or written, GPSBabel will use the serial protocol. Specifying
	a file, either on local filesystem or on a mounted flash card reader,
	will results in the file-based format being used.
</p><p>
	To access the device using the serial protocol over USB the
	device needs to be in Navilink mode, which can be activated
	from the main menu of the device. This device uses a Prolific 
	PL2303 USB/Serial adapter internally and that's how it will 
	present itself to the host operating system. You thus need
	USB drivers for the PL2303, such as those from the 'Download'
	section of
	<a class="ulink" href="http://www.locosystech.com/product.php?zln=en&amp;id=30#" target="_top">
	Locosys USB Genie GT-31/BGT-31 drivers
	</a>.
</p><p>
	Details of the Navilink serial protocol can be found
	<a class="ulink" href="http://notes.splitbrain.org/navilink" target="_top">here</a>.
</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_nuketrk"></a><code class="option">nuketrk</code> option</h3></div></div></div><p>
      Delete all track points.
    </p><p>
This option erases all track data in the receiver before or after
doing the transfer, depending on whether track data is sent to or
received from the device.
</p><p>
This is a convenient option to use in automated processes where you want
to ensure the units starts with a clean state before sending track data to
it, or if you want to clear the device after receiving the track data.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_nukerte"></a><code class="option">nukerte</code> option</h3></div></div></div><p>
      Delete all routes.
    </p><p>
This option erases all routes in the receiver before or after doing
the transfer, depending on whether routes are sent to or received from
the device.
</p><p>
This is a convenient option to use in automated processes where you
want to ensure the units starts with a clean state before sending
routes to it, or if you want to clear the device after receiving the
routes.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_nukewpt"></a><code class="option">nukewpt</code> option</h3></div></div></div><p>
      Delete all waypoints.
    </p><p>
This option erases all waypoints in the receiver before or after doing
the transfer, depending on whether waypoints are sent to or received
from the device.
</p><p>
This is a convenient option to use in automated processes where you
want to ensure the units starts with a clean state before sending
waypoints to it, or if you want to clear the device after receiving
the waypoints.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_nukedlg"></a><code class="option">nukedlg</code> option</h3></div></div></div><p>
      Clear the datalog.
    </p><p>
This option clears the datalogger in the receiver after doing the
transfer.
</p><p>
This is a convenient option to use in automated processes if you want
to clear the device after receiving the data logger contents.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_datalog"></a><code class="option">datalog</code> option</h3></div></div></div><p>
      Read from datalogger buffer.
    </p><p>
This option transfers the contents of the unit's data log. The data is
downloaded as a single track.
</p><p>
Only reading of the data log is supported, and you must use
the <code class="option">-t</code> option to receive any data.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_navilink_o_power_off"></a><code class="option">power_off</code> option</h3></div></div></div><p>
      Command unit to power itself down.
    </p><p>
This options powers down the Navilink receiver once any transfers are
complete.
</p></div></div><div xmlns="http://www.w3.org/1999/xhtml" class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="fmt_navigonwpt.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="The_Formats.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="fmt_sbp.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Navigon Waypoints (navigonwpt) </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> NaviGPS GT-31/BGT-31 datalogger (.sbp) (sbp)</td></tr></table></div>
  
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