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en:help:v2:tracker [2019/01/27 22:56]
alpinequest
en:help:v2:tracker [2019/01/28 08:23]
alpinequest
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 ===== Problems with the track recorder ===== ===== Problems with the track recorder =====
-\\ + 
-**Track not correctly recorded when the screen is turned off**\\+==== Track not correctly recorded when the screen is turned off ====
 On top of the Android battery optimization tools, some brands also include their own tools that may disable the use of GPS or network for background applications,​ and so prevent the good operation of the track recorder. Be sure to disable those behaviors or grant the application the correct permissions. Here are some examples: On top of the Android battery optimization tools, some brands also include their own tools that may disable the use of GPS or network for background applications,​ and so prevent the good operation of the track recorder. Be sure to disable those behaviors or grant the application the correct permissions. Here are some examples:
  
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 For some devices (like Huawei Mate 10), a system update can also fix this problem. For some devices (like Huawei Mate 10), a system update can also fix this problem.
  
-**The track recorder service stops**\\+==== The track recorder service stops ==== 
 In addition of being closed by the system as seen before, some "​device/​memory cleaner/​booster"​ applications automatically kill background processes. If you use such applications,​ be sure to add the track recorder service in the exclude list of your cleaning application so it doesn'​t get killed. In addition of being closed by the system as seen before, some "​device/​memory cleaner/​booster"​ applications automatically kill background processes. If you use such applications,​ be sure to add the track recorder service in the exclude list of your cleaning application so it doesn'​t get killed.
  
-**Loss of the GPS signal**\\+==== Loss of the GPS signal ​==== 
 A common issue when recording a track is the loss of the GPS signal, leading to a missing part in the recorded track (seen as a straight line longer than usual). It usually happens because the device doesn'​t have a good enough access to the sky, for example when the device is placed in a deep pocket or in a bag. The GPS signal emitted by GPS satellites is weak and get easily lost when going through any material. If you have checked "​**''​Warn me if the GPS signal is lost or too weak''​**"​ {{:​icon_03.png?​nolink}} option, the application will play a song when this happens. A common issue when recording a track is the loss of the GPS signal, leading to a missing part in the recorded track (seen as a straight line longer than usual). It usually happens because the device doesn'​t have a good enough access to the sky, for example when the device is placed in a deep pocket or in a bag. The GPS signal emitted by GPS satellites is weak and get easily lost when going through any material. If you have checked "​**''​Warn me if the GPS signal is lost or too weak''​**"​ {{:​icon_03.png?​nolink}} option, the application will play a song when this happens.
  
-**Recorded track doesn'​t precisely follow my real locations**\\ +==== Recorded track doesn'​t precisely follow my real locations ​==== 
-Some devices perform better than others ​while using the GPS, depending on the quality of the hardware used and internal conception (location ​of the GPS chip inside the device). Some devices require a stronger GPS signal to give an acceptable accuracy. For example, here is the same track recorded at the same time by two different devices (one in the left pocket, one in the right) during a small outside walk with occasional stays inside buildings. We can see that the Samsung S9 {{:​icon_01.png?​nolink}} performs better than the Huawei P10 Lite {{:​icon_02.png?​nolink}}.+ 
 +Some devices perform better than others ​when using the GPS, depending on the quality of the hardware used and the internal conception (placement ​of the GPS chip inside the device). Some devices require a stronger GPS signal to give an acceptable accuracy. For example, here is the same track recorded at the same time by two different devices (one in the left pocket, one in the right) during a small outside walk with occasional stays inside buildings. We can see that the Samsung ​Galaxy ​S9 {{:​icon_01.png?​nolink}} performs better than the Huawei P10 Lite {{:​icon_02.png?​nolink}}. 
 {{ :​en:​help:​v2:​positioning:​tracker-compare.jpg?​nolink }} {{ :​en:​help:​v2:​positioning:​tracker-compare.jpg?​nolink }}
  
-**Device gets hot**\\+==== Device gets hot ==== 
 Tracking a path requires frequent GPS location updates and some devices (mainly old or low-cost ones, but not always) doesn'​t support the GPS being turned on for long hours. Common symptoms in this case can be: Tracking a path requires frequent GPS location updates and some devices (mainly old or low-cost ones, but not always) doesn'​t support the GPS being turned on for long hours. Common symptoms in this case can be:
   * The device becomes more hot than usual;   * The device becomes more hot than usual;

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    · Track recorder
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