<para>Serial download protocol for GPS data loggers based on Skytraq Venus 5 and Venus 6 chipsets.
This chipset is used by a number of devices from different manufacturers.
If your logger came with the Windows software iTravelTech GPS Photo Tagger, chances are that you can
use this format to read its memory.</para>

<para>Following a list of devices which should be supported by this module
(Note that not all of them have actually been tested, so if you can confirm that additional models work, please mail the gpsbabel-misc group with your success, tips, and any pertinent links for your model.):</para>

<table xml:id="skytraq_devices">
<title>Devices supported by skytraq module</title>
<tgroup cols="4">
<thead>
<row>
 <entry>Manufacturer</entry>
 <entry>Model</entry>
 <entry>USB (baud)</entry>
 <entry>Bluetooth (baud)</entry>
</row>
</thead>
<tbody>
<row>
  <entry>SJA</entry>
  <entry>"3-in-1" GPS logger</entry>
  <entry>up to 230400</entry>
  <entry>9600</entry>
</row>
<row>
  <entry>Navilock</entry>
  <entry>BT-455PDL</entry>
  <entry>untested</entry>
  <entry>untested</entry>
</row>
<row>
  <entry>Polaris</entry>
  <entry>Travel Honey</entry>
  <entry>up to 230400</entry>
  <entry>9600</entry>
</row>
<row>
  <entry>Pearl Diffusion</entry>
  <entry>Keymate STV-5</entry>
  <entry>untested</entry>
  <entry>untested</entry>
</row>
<row>
  <entry>Canmore</entry>
  <entry>GT-730FL-S</entry>
  <entry>untested</entry>
  <entry>n/a</entry>
</row>
<row>
  <entry>Canmore</entry>
  <entry>GT-750F</entry>
  <entry>untested</entry>
  <entry>untested</entry>
</row>
<row>
  <entry>Gisteq</entry>
  <entry>DPL900</entry>
  <entry>up to 230400</entry>
  <entry>untested</entry>
</row>
<row>
  <entry>Adapt Mobile</entry>
  <entry>Keychain Pro</entry>
  <entry>untested</entry>
  <entry>untested</entry>
</row>
<row>
  <entry>Adapt Mobile </entry>
  <entry>Keychain Pro</entry>
  <entry>9600</entry>
  <entry>9600</entry>
</row>
</tbody>
</tgroup>
</table>
<para>Windows users of GPSBabel version 1.5.2 or less may have to explicitly specify a bit rate of 115200 or lower.</para>

<example xml:id="skytraq-on-linux">
  <title>Command showing skytraq download of tracks and erasing the logger on Linux</title>
  <para><userinput>gpsbabel -i skytraq,erase -f /dev/ttyUSB0 -o gpx -F out.gpx</userinput></para>
</example>

<example xml:id="skytraq-erase">
  <title>Command showing skytraq erasing the logger without download on Linux</title>
  <para><userinput>gpsbabel -i skytraq,erase,no-output -f /dev/ttyUSB0</userinput></para>
</example>

<para>If available, reading the logger using bluetooth should also work. However, many devices support only one
specific baud rate over bluetooth, e.g. 9600. In that case you should use the option <userinput>baud=0</userinput>
to tell GPSBabel to use that default baud rate:</para>
<example xml:id="skytraq-on-linux-bt">
  <title>Command showing skytraq download tracks via bluetooth on Linux</title>
  <para><userinput>rfcomm bind 0 &lt;bdaddr&gt;</userinput></para>
  <para><userinput>gpsbabel -i skytraq,baud=0 -f /dev/rfcomm0 -o gpx -F out.gpx</userinput></para>
</example>
