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--- manual:faq:wrong_gps_data [2025/08/13 11:47] – mstupka
+++ manual:faq:wrong_gps_data [2025/08/18 11:01] (current) – [Custom altitude threshold] mstupka
@@ Line 37: / Line 37: @@
    * Open Locus Map settings > GPS&sensors > Altitude manager > settings tab > SRTM data - select **Replace GPS values** - this option calculates elevation gain from **offline elevation data** without using GPS
-===== Custom altitude threshold =====
+==== Custom altitude threshold ====
 Those who are still unsatisfied with the result can change the elevation gain calculation by applying a custom altitude threshold:
   * open **[[manual:advanced:customization:config#expert_settings|Expert settings]]** > Customize altitude threshold > enable it
   * open a track or route detail > select **Edit** from the bottom menu
   * change altitude threshold with the slider\\ {{ :manual:faq:threshold.jpg?nolink |}}
+<WRAP center round info>
+By default, the altitude threshold in the app is not fixed. It is based on the source of the elevation. App decides by following the check (in this order):
+  * if you use a pressure sensor, the app sets the threshold to "2"
+  * if you use elevation data (enabled in "[[..:user_guide:tools:altitude|Altitude manager]]"), the threshold is set to "3"
+  * if you have Android 12+, the threshold is set to "5"
+  * otherwise it is set to "10"
+  * generally, the default value is "5". It should be set to all imported tracks or to old tracks recorded before this parameter was introduced
+</WRAP>

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