Remove unnecessary default values

61 files changed, 10 insertions, 263 deletions

diff --git a/src/org/traccar/protocol/AplicomProtocolDecoder.java b/src/org/traccar/protocol/AplicomProtocolDecoder.java
index 0d90ec771..2092fee3d 100644
--- a/src/org/traccar/protocol/AplicomProtocolDecoder.java
+++ b/src/org/traccar/protocol/AplicomProtocolDecoder.java
@@ -162,9 +162,6 @@ public class AplicomProtocolDecoder extends BaseProtocolDecoder {
             position.setSpeed(buf.readUnsignedByte() * 0.539957);
             buf.readUnsignedByte(); // maximum speed
             position.setCourse(buf.readUnsignedByte() * 2.0);
-        } else {
-            position.setSpeed(0.0);
-            position.setCourse(0.0);
         }
 
         // Input
@@ -226,8 +223,6 @@ public class AplicomProtocolDecoder extends BaseProtocolDecoder {
         // Altitude
         if ((selector & 0x0800) != 0) {
             position.setAltitude((double) buf.readShort());
-        } else {
-            position.setAltitude(0.0);
         }
 
         position.setExtendedInfo(extendedInfo.toString());
diff --git a/src/org/traccar/protocol/AtrackProtocolDecoder.java b/src/org/traccar/protocol/AtrackProtocolDecoder.java
index e2f3e924f..0c6aa566d 100644
--- a/src/org/traccar/protocol/AtrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/AtrackProtocolDecoder.java
@@ -117,7 +117,6 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
             position.setValid(true);
             position.setLongitude(buf.readInt() * 0.000001);
             position.setLatitude(buf.readInt() * 0.000001);
-            position.setAltitude(0.0);
 
             // Course
             position.setCourse((double) buf.readUnsignedShort());
diff --git a/src/org/traccar/protocol/AutoFon45ProtocolDecoder.java b/src/org/traccar/protocol/AutoFon45ProtocolDecoder.java
index c72139c50..c2b675194 100644
--- a/src/org/traccar/protocol/AutoFon45ProtocolDecoder.java
+++ b/src/org/traccar/protocol/AutoFon45ProtocolDecoder.java
@@ -110,7 +110,6 @@ public class AutoFon45ProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(convertCoordinate(buf.readUnsignedByte(), buf.readUnsignedByte() << 16 | buf.readUnsignedByte() << 8 | buf.readUnsignedByte()));
             position.setSpeed((double) buf.readUnsignedByte());
             position.setCourse((double) (buf.readUnsignedByte() << 8 | buf.readUnsignedByte()));
-            position.setAltitude(0.0);
 
             buf.readUnsignedByte(); // checksum
 
diff --git a/src/org/traccar/protocol/Avl301ProtocolDecoder.java b/src/org/traccar/protocol/Avl301ProtocolDecoder.java
index 4bc7686e7..2281bfed0 100644
--- a/src/org/traccar/protocol/Avl301ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Avl301ProtocolDecoder.java
@@ -120,7 +120,6 @@ public class Avl301ProtocolDecoder extends BaseProtocolDecoder {
 
             position.setLatitude(latitude);
             position.setLongitude(longitude);
-            position.setAltitude(0.0);
 
             if ((union & 0x4000) != 0) {
                 extendedInfo.set("acc", (union & 0x8000) != 0);
diff --git a/src/org/traccar/protocol/BoxProtocolDecoder.java b/src/org/traccar/protocol/BoxProtocolDecoder.java
index d2de48489..804ce059c 100644
--- a/src/org/traccar/protocol/BoxProtocolDecoder.java
+++ b/src/org/traccar/protocol/BoxProtocolDecoder.java
@@ -95,7 +95,6 @@ public class BoxProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(Double.valueOf(parser.group(index++)));
             position.setSpeed(Double.valueOf(parser.group(index++)));
             position.setCourse(Double.valueOf(parser.group(index++)));
-            position.setAltitude(0.0);
             
             // Distance
             extendedInfo.set("milage", parser.group(index++));
diff --git a/src/org/traccar/protocol/CalAmpProtocolDecoder.java b/src/org/traccar/protocol/CalAmpProtocolDecoder.java
index 04ac8f165..f24ae01c0 100644
--- a/src/org/traccar/protocol/CalAmpProtocolDecoder.java
+++ b/src/org/traccar/protocol/CalAmpProtocolDecoder.java
@@ -176,7 +176,6 @@ public class CalAmpProtocolDecoder extends BaseProtocolDecoder {
             }
             position.setCourse((double) buf.readShort());
             if (type == MSG_MINI_EVENT_REPORT) {
-                position.setAltitude(0.0);
                 position.setSpeed(buf.readUnsignedByte() * 0.539957); // km/h
             }
 
diff --git a/src/org/traccar/protocol/CarTrackProtocolDecoder.java b/src/org/traccar/protocol/CarTrackProtocolDecoder.java
index 425115fe9..b4e5bf134 100644
--- a/src/org/traccar/protocol/CarTrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/CarTrackProtocolDecoder.java
@@ -112,16 +112,12 @@ public class CarTrackProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -129,9 +125,6 @@ public class CarTrackProtocolDecoder extends BaseProtocolDecoder {
         time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
         time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
         position.setTime(time.getTime());
-
-        // Altitude
-        position.setAltitude(0.0);
         
         // State
         extendedInfo.set("io", parser.group(index++));
diff --git a/src/org/traccar/protocol/CarscopProtocolDecoder.java b/src/org/traccar/protocol/CarscopProtocolDecoder.java
index e7c4d6192..2b6d70519 100644
--- a/src/org/traccar/protocol/CarscopProtocolDecoder.java
+++ b/src/org/traccar/protocol/CarscopProtocolDecoder.java
@@ -101,9 +101,6 @@ public class CarscopProtocolDecoder extends BaseProtocolDecoder {
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
diff --git a/src/org/traccar/protocol/EasyTrackProtocolDecoder.java b/src/org/traccar/protocol/EasyTrackProtocolDecoder.java
index c32ac2228..2402cbdb7 100644
--- a/src/org/traccar/protocol/EasyTrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/EasyTrackProtocolDecoder.java
@@ -134,8 +134,6 @@ public class EasyTrackProtocolDecoder extends BaseProtocolDecoder {
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         position.setExtendedInfo(extendedInfo.toString());
diff --git a/src/org/traccar/protocol/EelinkProtocolDecoder.java b/src/org/traccar/protocol/EelinkProtocolDecoder.java
index 929153033..b18dd3970 100644
--- a/src/org/traccar/protocol/EelinkProtocolDecoder.java
+++ b/src/org/traccar/protocol/EelinkProtocolDecoder.java
@@ -111,7 +111,6 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(buf.readInt() / 1800000.0);
             position.setSpeed(buf.readUnsignedByte() * 0.539957);
             position.setCourse((double) buf.readUnsignedShort());
-            position.setAltitude(0.0);
             
             // Cell
             extendedInfo.set("cell", ChannelBufferTools.readHexString(buf, 18));
@@ -186,7 +185,6 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
 
             position.setLatitude(latitude);
             position.setLongitude(longitude);
-            position.setAltitude(0.0);
 
             position.setExtendedInfo(extendedInfo.toString());
             return position;
diff --git a/src/org/traccar/protocol/EnforaProtocolDecoder.java b/src/org/traccar/protocol/EnforaProtocolDecoder.java
index 430693189..9fd20300f 100644
--- a/src/org/traccar/protocol/EnforaProtocolDecoder.java
+++ b/src/org/traccar/protocol/EnforaProtocolDecoder.java
@@ -129,9 +129,6 @@ public class EnforaProtocolDecoder extends BaseProtocolDecoder {
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
@@ -139,8 +136,6 @@ public class EnforaProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
diff --git a/src/org/traccar/protocol/Ev603ProtocolDecoder.java b/src/org/traccar/protocol/Ev603ProtocolDecoder.java
index acf359daf..ffec5926b 100644
--- a/src/org/traccar/protocol/Ev603ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Ev603ProtocolDecoder.java
@@ -92,16 +92,13 @@ public class Ev603ProtocolDecoder extends BaseProtocolDecoder{
             position.setLatitude(Double.valueOf(parser.group(index++)));

             position.setLongitude(Double.valueOf(parser.group(index++)));

 

-            // Altitude

-            position.setAltitude(0.0);

-

             // Speed

             position.setSpeed(Double.valueOf(parser.group(index++)));

 

             // Course

             position.setCourse(Double.valueOf(parser.group(index++)));

             if (position.getCourse() > 360) {

-                position.setCourse(0.0);

+                position.setCourse(0);

             }

 

             position.setExtendedInfo(extendedInfo.toString());

diff --git a/src/org/traccar/protocol/FreedomProtocolDecoder.java b/src/org/traccar/protocol/FreedomProtocolDecoder.java
index f8ab610b1..9323340a9 100644
--- a/src/org/traccar/protocol/FreedomProtocolDecoder.java
+++ b/src/org/traccar/protocol/FreedomProtocolDecoder.java
@@ -95,16 +95,10 @@ public class FreedomProtocolDecoder extends BaseProtocolDecoder {
         longitude += Double.valueOf(parser.group(index++)) / 60;
         if (hemisphere.compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
-        // Course
-        position.setCourse(0.0);
-
         position.setExtendedInfo(extendedInfo.toString());
         return position;
     }
diff --git a/src/org/traccar/protocol/GatorProtocolDecoder.java b/src/org/traccar/protocol/GatorProtocolDecoder.java
index 33b8c501c..42dbb8cc9 100644
--- a/src/org/traccar/protocol/GatorProtocolDecoder.java
+++ b/src/org/traccar/protocol/GatorProtocolDecoder.java
@@ -96,7 +96,6 @@ public class GatorProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(ChannelBufferTools.readCoordinate(buf));
             position.setSpeed(ChannelBufferTools.readHexInteger(buf, 4) * 0.539957);
             position.setCourse((double) ChannelBufferTools.readHexInteger(buf, 4));
-            position.setAltitude(0.0);
 
             // Flags
             int flags = buf.readUnsignedByte();
diff --git a/src/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
index 969be7611..7137ff975 100644
--- a/src/org/traccar/protocol/Gl200ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
@@ -90,24 +90,18 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (speed != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Altitude
         String altitude = parser.group(index++);
         if (speed != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Coordinates
diff --git a/src/org/traccar/protocol/GotopProtocolDecoder.java b/src/org/traccar/protocol/GotopProtocolDecoder.java
index 80196c04a..587b9180a 100644
--- a/src/org/traccar/protocol/GotopProtocolDecoder.java
+++ b/src/org/traccar/protocol/GotopProtocolDecoder.java
@@ -95,9 +95,6 @@ public class GotopProtocolDecoder extends BaseProtocolDecoder {
         Double longitude = Double.valueOf(parser.group(index++));
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)) * 0.539957);
@@ -109,8 +106,6 @@ public class GotopProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         position.setExtendedInfo(extendedInfo.toString());
diff --git a/src/org/traccar/protocol/Gps103ProtocolDecoder.java b/src/org/traccar/protocol/Gps103ProtocolDecoder.java
index b99507ffb..f14f80239 100644
--- a/src/org/traccar/protocol/Gps103ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gps103ProtocolDecoder.java
@@ -178,24 +178,18 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);        
         if (speed != null) {
         	position.setSpeed(Double.valueOf(speed));
-        } else {
-        	position.setSpeed(0.0);
         }
         
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Altitude
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Additional data
diff --git a/src/org/traccar/protocol/GpsGateProtocolDecoder.java b/src/org/traccar/protocol/GpsGateProtocolDecoder.java
index cb26d3a61..6b19fbe0a 100644
--- a/src/org/traccar/protocol/GpsGateProtocolDecoder.java
+++ b/src/org/traccar/protocol/GpsGateProtocolDecoder.java
@@ -134,16 +134,12 @@ public class GpsGateProtocolDecoder extends BaseProtocolDecoder {
             String speed = parser.group(index++);
             if (speed != null) {
                 position.setSpeed(Double.valueOf(speed));
-            } else {
-                position.setSpeed(0.0);
             }
 
             // Course
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
             // Date
@@ -152,9 +148,6 @@ public class GpsGateProtocolDecoder extends BaseProtocolDecoder {
             time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
             position.setTime(time.getTime());
 
-            // Altitude
-            position.setAltitude(0.0);
-
             position.setExtendedInfo(extendedInfo.toString());
             return position;
         }
diff --git a/src/org/traccar/protocol/Gt02ProtocolDecoder.java b/src/org/traccar/protocol/Gt02ProtocolDecoder.java
index bab03d13f..857330e23 100644
--- a/src/org/traccar/protocol/Gt02ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt02ProtocolDecoder.java
@@ -122,7 +122,6 @@ public class Gt02ProtocolDecoder extends BaseProtocolDecoder {
 
             position.setLatitude(latitude);
             position.setLongitude(longitude);
-            position.setAltitude(0.0);
 
             position.setExtendedInfo(extendedInfo.toString());
             return position;
diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
index 5196634e8..f3795a8dd 100644
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -181,7 +181,6 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
             position.setLatitude(latitude);
             position.setLongitude(longitude);
-            position.setAltitude(0.0);
             
             if ((union & 0x4000) != 0) {
                 extendedInfo.set("acc", (union & 0x8000) != 0);
diff --git a/src/org/traccar/protocol/H02ProtocolDecoder.java b/src/org/traccar/protocol/H02ProtocolDecoder.java
index 51d1ed8d0..2cf5c0f16 100644
--- a/src/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/org/traccar/protocol/H02ProtocolDecoder.java
@@ -93,7 +93,6 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
         if ((flags & 0x08) == 0) longitude = -longitude;
         position.setLatitude(latitude);
         position.setLongitude(longitude);
-        position.setAltitude(0.0);
 
         // Speed and course
         position.setSpeed((double) ChannelBufferTools.readHexInteger(buf, 3));
@@ -164,9 +163,6 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
         longitude += Double.valueOf(parser.group(index++)) / 60;
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
@@ -175,8 +171,6 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
diff --git a/src/org/traccar/protocol/HaicomProtocolDecoder.java b/src/org/traccar/protocol/HaicomProtocolDecoder.java
index ae070fd84..fe33d44df 100644
--- a/src/org/traccar/protocol/HaicomProtocolDecoder.java
+++ b/src/org/traccar/protocol/HaicomProtocolDecoder.java
@@ -115,9 +115,6 @@ public class HaicomProtocolDecoder extends BaseProtocolDecoder {
 
         // Course
         position.setCourse(Double.valueOf(parser.group(index++)) / 10);
-
-        // Altitude
-        position.setAltitude(0.0);
         
         // Additional data
         extendedInfo.set("status", parser.group(index++));
diff --git a/src/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
index 80c584d21..a1eb67993 100644
--- a/src/org/traccar/protocol/Jt600ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -112,8 +112,6 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         } else if (version == 2) {
 
-            position.setAltitude(0.0);
-
             int fuel = buf.readUnsignedByte() << 8;
 
             extendedInfo.set("status", buf.readUnsignedInt());
@@ -200,9 +198,6 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         // Course
         position.setCourse(Double.valueOf(parser.group(index++)));
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Power
         extendedInfo.set("power", Double.valueOf(parser.group(index++)));
diff --git a/src/org/traccar/protocol/KhdProtocolDecoder.java b/src/org/traccar/protocol/KhdProtocolDecoder.java
index ed974d8ca..74a68e34f 100644
--- a/src/org/traccar/protocol/KhdProtocolDecoder.java
+++ b/src/org/traccar/protocol/KhdProtocolDecoder.java
@@ -100,7 +100,6 @@ public class KhdProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(ChannelBufferTools.readCoordinate(buf));
             position.setSpeed(ChannelBufferTools.readHexInteger(buf, 4) * 0.539957);
             position.setCourse((double) ChannelBufferTools.readHexInteger(buf, 4));
-            position.setAltitude(0.0);
 
             // Flags
             int flags = buf.readUnsignedByte();
diff --git a/src/org/traccar/protocol/LaipacProtocolDecoder.java b/src/org/traccar/protocol/LaipacProtocolDecoder.java
index b868887ec..95c38ae97 100644
--- a/src/org/traccar/protocol/LaipacProtocolDecoder.java
+++ b/src/org/traccar/protocol/LaipacProtocolDecoder.java
@@ -118,9 +118,6 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
         time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
         position.setTime(time.getTime());
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Response
         String type = parser.group(index++);
         String checksum = parser.group(index++);
diff --git a/src/org/traccar/protocol/M2mProtocolDecoder.java b/src/org/traccar/protocol/M2mProtocolDecoder.java
index 0daa07422..d67e78003 100644
--- a/src/org/traccar/protocol/M2mProtocolDecoder.java
+++ b/src/org/traccar/protocol/M2mProtocolDecoder.java
@@ -114,8 +114,6 @@ public class M2mProtocolDecoder extends BaseProtocolDecoder {
             position.setLatitude(latitude);
             position.setLongitude(longitude);
             position.setSpeed((double) buf.readUnsignedByte());
-            position.setCourse(0.0);
-            position.setAltitude(0.0);
 
             // Satellites
             int satellites = buf.readUnsignedByte();
diff --git a/src/org/traccar/protocol/ManPowerProtocolDecoder.java b/src/org/traccar/protocol/ManPowerProtocolDecoder.java
index dea190715..5e62c1cc9 100644
--- a/src/org/traccar/protocol/ManPowerProtocolDecoder.java
+++ b/src/org/traccar/protocol/ManPowerProtocolDecoder.java
@@ -106,15 +106,9 @@ public class ManPowerProtocolDecoder extends BaseProtocolDecoder {
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
-        // Course
-        position.setCourse(0.0);
-
         // Extended info
         position.setExtendedInfo(extendedInfo.toString());
 
diff --git a/src/org/traccar/protocol/MaxonProtocolDecoder.java b/src/org/traccar/protocol/MaxonProtocolDecoder.java
index cd86e5e65..39a841a1f 100644
--- a/src/org/traccar/protocol/MaxonProtocolDecoder.java
+++ b/src/org/traccar/protocol/MaxonProtocolDecoder.java
@@ -107,16 +107,12 @@ public class MaxonProtocolDecoder extends BaseProtocolDecoder {
             String speed = parser.group(index++);
             if (speed != null) {
                 position.setSpeed(Double.valueOf(speed));
-            } else {
-                position.setSpeed(0.0);
             }
 
             // Course
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
             // Date
@@ -125,9 +121,6 @@ public class MaxonProtocolDecoder extends BaseProtocolDecoder {
             time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
             position.setTime(time.getTime());
 
-            // Altitude
-            position.setAltitude(0.0);
-
         } else if (sentence.contains("$GPFID") && position != null) {
             Matcher parser = gpfidPattern.matcher(sentence);
 
diff --git a/src/org/traccar/protocol/MegastekProtocolDecoder.java b/src/org/traccar/protocol/MegastekProtocolDecoder.java
index 4a621245a..f67a89726 100644
--- a/src/org/traccar/protocol/MegastekProtocolDecoder.java
+++ b/src/org/traccar/protocol/MegastekProtocolDecoder.java
@@ -113,16 +113,12 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -213,8 +209,6 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
             String altitude = parser.group(index++);
             if (altitude != null) {
                 position.setAltitude(Double.valueOf(altitude));
-            } else {
-                position.setAltitude(0.0);
             }
 
             // Battery
@@ -240,9 +234,6 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
             
             int index = 1;
 
-            // Altitude
-            position.setAltitude(0.0);
-
             if (!identify(id)) {
                 return null;
             }
diff --git a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
index 547821c69..648901678 100644
--- a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -225,16 +225,12 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -250,8 +246,6 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // State
diff --git a/src/org/traccar/protocol/MtxProtocolDecoder.java b/src/org/traccar/protocol/MtxProtocolDecoder.java
index 150e95e3b..713193c49 100644
--- a/src/org/traccar/protocol/MtxProtocolDecoder.java
+++ b/src/org/traccar/protocol/MtxProtocolDecoder.java
@@ -101,7 +101,6 @@ public class MtxProtocolDecoder extends BaseProtocolDecoder {
         position.setLongitude(Double.valueOf(parser.group(index++)));
         position.setSpeed(Double.valueOf(parser.group(index++)));
         position.setCourse(Double.valueOf(parser.group(index++)));
-        position.setAltitude(0.0);
 
         // Other
         extendedInfo.set("milage", Double.valueOf(parser.group(index++)));
diff --git a/src/org/traccar/protocol/NavigilProtocolDecoder.java b/src/org/traccar/protocol/NavigilProtocolDecoder.java
index f12e15fb6..9722e98a2 100644
--- a/src/org/traccar/protocol/NavigilProtocolDecoder.java
+++ b/src/org/traccar/protocol/NavigilProtocolDecoder.java
@@ -167,7 +167,6 @@ public class NavigilProtocolDecoder extends BaseProtocolDecoder {
         
         position.setLatitude(buf.readMedium() * 0.00002);
         position.setLongitude(buf.readMedium() * 0.00002);
-        position.setAltitude(0.0);
         
         position.setSpeed(buf.readUnsignedByte() * 0.539957);
         position.setCourse(buf.readUnsignedByte() * 2.0);
@@ -191,12 +190,10 @@ public class NavigilProtocolDecoder extends BaseProtocolDecoder {
         
         position.setLatitude(buf.readInt() * 0.0000001);
         position.setLongitude(buf.readInt() * 0.0000001);
-        position.setAltitude(0.0);
         
         buf.readUnsignedByte(); // report trigger
 
         position.setSpeed(buf.readUnsignedByte() * 0.539957);
-        position.setCourse(0.0);
         
         short flags = buf.readUnsignedByte();
         position.setValid((flags & 0x80) == 0x80 && (flags & 0x40) == 0x40);
@@ -266,7 +263,6 @@ public class NavigilProtocolDecoder extends BaseProtocolDecoder {
 
         position.setLatitude(buf.readInt() * 0.0000001);
         position.setLongitude(buf.readInt() * 0.0000001);
-        position.setAltitude(0.0);
         
         position.setSpeed(buf.readUnsignedByte() * 0.539957);
         position.setCourse(buf.readUnsignedByte() * 2.0);
diff --git a/src/org/traccar/protocol/NavisProtocolDecoder.java b/src/org/traccar/protocol/NavisProtocolDecoder.java
index 7ac0dccdf..7e3dc9728 100644
--- a/src/org/traccar/protocol/NavisProtocolDecoder.java
+++ b/src/org/traccar/protocol/NavisProtocolDecoder.java
@@ -83,7 +83,6 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
         ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
 
         position.setDeviceId(getDeviceId());
-        position.setAltitude(0.0);
 
         // Format type
         int format;
diff --git a/src/org/traccar/protocol/NoranProtocolDecoder.java b/src/org/traccar/protocol/NoranProtocolDecoder.java
index bc807711d..b212eace9 100644
--- a/src/org/traccar/protocol/NoranProtocolDecoder.java
+++ b/src/org/traccar/protocol/NoranProtocolDecoder.java
@@ -95,7 +95,6 @@ public class NoranProtocolDecoder extends BaseProtocolDecoder {
             position.setCourse((double) buf.readUnsignedShort());
             position.setLongitude((double) buf.readFloat());
             position.setLatitude((double) buf.readFloat());
-            position.setAltitude(0.0);
 
             // Time
             long timeValue = buf.readUnsignedInt();
diff --git a/src/org/traccar/protocol/OsmAndProtocolDecoder.java b/src/org/traccar/protocol/OsmAndProtocolDecoder.java
index 85cf1219c..11966e0bd 100644
--- a/src/org/traccar/protocol/OsmAndProtocolDecoder.java
+++ b/src/org/traccar/protocol/OsmAndProtocolDecoder.java
@@ -88,33 +88,34 @@ public class OsmAndProtocolDecoder extends BaseProtocolDecoder {
         // Optional parameters
         if (params.containsKey("speed")) {
             position.setSpeed(Double.valueOf(params.get("speed").get(0)));
-        } else {
-            position.setSpeed(0.0);
         }
+
         if (params.containsKey("bearing")) {
             position.setCourse(Double.valueOf(params.get("bearing").get(0)));
         } else if (params.containsKey("heading")) {
             position.setCourse(Double.valueOf(params.get("heading").get(0)));
-        } else {
-            position.setCourse(0.0);
         }
+
         if (params.containsKey("altitude")) {
             position.setAltitude(Double.valueOf(params.get("altitude").get(0)));
-        } else {
-            position.setAltitude(0.0);
         }
+
         if (params.containsKey("hdop")) {
             extendedInfo.set("hdop", params.get("hdop").get(0));
         }
+
         if (params.containsKey("vacc")) {
             extendedInfo.set("vacc", params.get("vacc").get(0));
         }
+
         if (params.containsKey("hacc")) {
             extendedInfo.set("hacc", params.get("hacc").get(0));
         }
+
         if (params.containsKey("batt")) {
             extendedInfo.set("battery", params.get("batt").get(0));
         }
+
         if (params.containsKey("desc")) {
             extendedInfo.set("description", params.get("desc").get(0));
         }
diff --git a/src/org/traccar/protocol/PiligrimProtocolDecoder.java b/src/org/traccar/protocol/PiligrimProtocolDecoder.java
index 1c0faef37..0190ec076 100644
--- a/src/org/traccar/protocol/PiligrimProtocolDecoder.java
+++ b/src/org/traccar/protocol/PiligrimProtocolDecoder.java
@@ -134,7 +134,6 @@ public class PiligrimProtocolDecoder extends BaseProtocolDecoder {
                     if ((flags & 0x02) != 0) longitude = -longitude;
                     position.setLatitude(latitude);
                     position.setLongitude(longitude);
-                    position.setAltitude(0.0);
                     
                     // Satellites
                     int satellites = buf.readUnsignedByte();
diff --git a/src/org/traccar/protocol/Pt3000ProtocolDecoder.java b/src/org/traccar/protocol/Pt3000ProtocolDecoder.java
index 513fdbb4b..125afc287 100644
--- a/src/org/traccar/protocol/Pt3000ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Pt3000ProtocolDecoder.java
@@ -101,16 +101,12 @@ public class Pt3000ProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -119,9 +115,6 @@ public class Pt3000ProtocolDecoder extends BaseProtocolDecoder {
         time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
         position.setTime(time.getTime());
 
-        // Altitude
-        position.setAltitude(0.0);
-
         position.setExtendedInfo(extendedInfo.toString());
         return position;
     }
diff --git a/src/org/traccar/protocol/Pt502ProtocolDecoder.java b/src/org/traccar/protocol/Pt502ProtocolDecoder.java
index 2cf5ad3d6..702fdfd27 100644
--- a/src/org/traccar/protocol/Pt502ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Pt502ProtocolDecoder.java
@@ -103,23 +103,16 @@ public class Pt502ProtocolDecoder extends BaseProtocolDecoder {
         }

         position.setLongitude(longitude);

 

-        // Altitude

-        position.setAltitude(0.0);

-

         // Speed

         String speed = parser.group(index++);

         if (speed != null) {

             position.setSpeed(Double.valueOf(speed));

-        } else {

-            position.setSpeed(0.0);

         }

 

         // Course

         String course = parser.group(index++);

         if (course != null) {

             position.setCourse(Double.valueOf(course));

-        } else {

-            position.setCourse(0.0);

         }

 

         // Date

diff --git a/src/org/traccar/protocol/RitiProtocolDecoder.java b/src/org/traccar/protocol/RitiProtocolDecoder.java
index 58e744f1a..fa98398a9 100644
--- a/src/org/traccar/protocol/RitiProtocolDecoder.java
+++ b/src/org/traccar/protocol/RitiProtocolDecoder.java
@@ -119,16 +119,12 @@ public class RitiProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed));
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -137,9 +133,6 @@ public class RitiProtocolDecoder extends BaseProtocolDecoder {
         time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
         position.setTime(time.getTime());
 
-        // Altitude
-        position.setAltitude(0.0);
-
         position.setExtendedInfo(extendedInfo.toString());
         return position;
     }
diff --git a/src/org/traccar/protocol/SanavProtocolDecoder.java b/src/org/traccar/protocol/SanavProtocolDecoder.java
index abdb25d2c..c29762075 100644
--- a/src/org/traccar/protocol/SanavProtocolDecoder.java
+++ b/src/org/traccar/protocol/SanavProtocolDecoder.java
@@ -97,9 +97,6 @@ public class SanavProtocolDecoder extends BaseProtocolDecoder {
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
@@ -107,8 +104,6 @@ public class SanavProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
diff --git a/src/org/traccar/protocol/Stl060ProtocolDecoder.java b/src/org/traccar/protocol/Stl060ProtocolDecoder.java
index 44cf20118..15bb3ddd4 100644
--- a/src/org/traccar/protocol/Stl060ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Stl060ProtocolDecoder.java
@@ -104,9 +104,6 @@ public class Stl060ProtocolDecoder extends BaseProtocolDecoder {
         longitude += Double.valueOf(parser.group(index++) + parser.group(index++)) / 600000;
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
diff --git a/src/org/traccar/protocol/SuntechProtocolDecoder.java b/src/org/traccar/protocol/SuntechProtocolDecoder.java
index b2bbcf573..4b12c556f 100644
--- a/src/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -103,9 +103,6 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
         // Course
         position.setCourse(Double.valueOf(parser.group(index++)));
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Extended info
         position.setExtendedInfo(extendedInfo.toString());
 
diff --git a/src/org/traccar/protocol/SyrusProtocolDecoder.java b/src/org/traccar/protocol/SyrusProtocolDecoder.java
index 5b7440bf9..af2c60a26 100644
--- a/src/org/traccar/protocol/SyrusProtocolDecoder.java
+++ b/src/org/traccar/protocol/SyrusProtocolDecoder.java
@@ -155,9 +155,6 @@ public class SyrusProtocolDecoder extends BaseProtocolDecoder {
         String longitude = parser.group(index) + '.' + parser.group(index + 1);
         index += 2;
         position.setLongitude(Double.valueOf(longitude));
-
-        // Altitude
-        position.setAltitude(0.0);
         
         // Speed and Course
         position.setSpeed(Double.valueOf(parser.group(index++)) * 0.868976);
diff --git a/src/org/traccar/protocol/T55ProtocolDecoder.java b/src/org/traccar/protocol/T55ProtocolDecoder.java
index ccf56ea41..be9fc80ac 100644
--- a/src/org/traccar/protocol/T55ProtocolDecoder.java
+++ b/src/org/traccar/protocol/T55ProtocolDecoder.java
@@ -171,16 +171,12 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             String speed = parser.group(index++);
             if (speed != null) {
                 position.setSpeed(Double.valueOf(speed));
-            } else {
-                position.setSpeed(0.0);
             }
 
             // Course
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
             // Date
@@ -189,9 +185,6 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
             position.setTime(time.getTime());
 
-            // Altitude
-            position.setAltitude(0.0);
-
             position.setExtendedInfo(extendedInfo.toString());
             return position;
         }
@@ -234,15 +227,6 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             longitude += Double.valueOf(parser.group(index++)) / 60;
             if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
             position.setLongitude(longitude);
-            
-            // Speed
-            position.setSpeed(0.0);
-            
-            // Course
-            position.setCourse(0.0);
-
-            // Altitude
-            position.setAltitude(0.0);
 
             position.setExtendedInfo(extendedInfo.toString());
             return position;
@@ -286,21 +270,14 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             String speed = parser.group(index++);
             if (speed != null) {
                 position.setSpeed(Double.valueOf(speed));
-            } else {
-                position.setSpeed(0.0);
             }
 
             // Course
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
-            // Altitude
-            position.setAltitude(0.0);
-
             position.setExtendedInfo(extendedInfo.toString());
             return position;
         }
diff --git a/src/org/traccar/protocol/TelikProtocolDecoder.java b/src/org/traccar/protocol/TelikProtocolDecoder.java
index 15ad77e6b..de6b1929f 100644
--- a/src/org/traccar/protocol/TelikProtocolDecoder.java
+++ b/src/org/traccar/protocol/TelikProtocolDecoder.java
@@ -92,7 +92,6 @@ public class TelikProtocolDecoder extends BaseProtocolDecoder {
         // Location
         position.setLongitude(Double.valueOf(parser.group(index++)) / 10000);
         position.setLatitude(Double.valueOf(parser.group(index++)) / 10000);
-        position.setAltitude(0.0);
 
         // Validity
         position.setValid(parser.group(index++).compareTo("1") != 0);
diff --git a/src/org/traccar/protocol/Tk102ProtocolDecoder.java b/src/org/traccar/protocol/Tk102ProtocolDecoder.java
index b32b020d1..b6f7e2212 100644
--- a/src/org/traccar/protocol/Tk102ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Tk102ProtocolDecoder.java
@@ -112,18 +112,12 @@ public class Tk102ProtocolDecoder extends BaseProtocolDecoder {
             // Speed
             position.setSpeed(Double.valueOf(parser.group(index++)));
 
-            // Course
-            position.setCourse(0.0);
-
             // Date
             time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
             time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
             time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
             position.setTime(time.getTime());
 
-            // Altitude
-            position.setAltitude(0.0);
-
             position.setExtendedInfo(extendedInfo.toString());
             return position;
         }
diff --git a/src/org/traccar/protocol/Tk103ProtocolDecoder.java b/src/org/traccar/protocol/Tk103ProtocolDecoder.java
index fa589956a..b0186a52b 100644
--- a/src/org/traccar/protocol/Tk103ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Tk103ProtocolDecoder.java
@@ -122,9 +122,6 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
         if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)) * 0.539957);
 
diff --git a/src/org/traccar/protocol/Tlt2hProtocolDecoder.java b/src/org/traccar/protocol/Tlt2hProtocolDecoder.java
index 01c1ac2aa..f42e92c8f 100644
--- a/src/org/traccar/protocol/Tlt2hProtocolDecoder.java
+++ b/src/org/traccar/protocol/Tlt2hProtocolDecoder.java
@@ -124,16 +124,12 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
                 String speed = parser.group(index++);
                 if (speed != null) {
                     position.setSpeed(Double.valueOf(speed));
-                } else {
-                    position.setSpeed(0.0);
                 }
 
                 // Course
                 String course = parser.group(index++);
                 if (course != null) {
                     position.setCourse(Double.valueOf(course));
-                } else {
-                    position.setCourse(0.0);
                 }
 
                 // Date
@@ -141,9 +137,6 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
                 time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
                 time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
                 position.setTime(time.getTime());
-
-                // Altitude
-                position.setAltitude(0.0);
                 
                 // Status
                 extendedInfo.set("status", status);
diff --git a/src/org/traccar/protocol/TopflytechProtocolDecoder.java b/src/org/traccar/protocol/TopflytechProtocolDecoder.java
index 20c4e54ad..b00551763 100644
--- a/src/org/traccar/protocol/TopflytechProtocolDecoder.java
+++ b/src/org/traccar/protocol/TopflytechProtocolDecoder.java
@@ -108,9 +108,6 @@ public class TopflytechProtocolDecoder extends BaseProtocolDecoder {
         // Course
         position.setCourse(Double.valueOf(parser.group(index++)));
 
-        // Altitude
-        position.setAltitude(0.0);
-
         position.setExtendedInfo(extendedInfo.toString());
         return position;
     }
diff --git a/src/org/traccar/protocol/TotemProtocolDecoder.java b/src/org/traccar/protocol/TotemProtocolDecoder.java
index ae8335b78..716e2b49c 100644
--- a/src/org/traccar/protocol/TotemProtocolDecoder.java
+++ b/src/org/traccar/protocol/TotemProtocolDecoder.java
@@ -210,16 +210,12 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             String speed = parser.group(index++);
             if (speed != null) {
                 position.setSpeed(Double.valueOf(speed));
-            } else {
-                position.setSpeed(0.0);
             }
 
             // Course
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
             // Date
@@ -234,9 +230,6 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             }
             position.setTime(time.getTime());
 
-            // Altitude
-            position.setAltitude(0.0);
-
             // Accuracy
             extendedInfo.set("hdop", parser.group(index++));
 
@@ -302,9 +295,6 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             // Speed
             position.setSpeed(Double.valueOf(parser.group(index++)));
 
-            // Altitude
-            position.setAltitude(0.0);
-
             // PDOP
             extendedInfo.set("pdop", parser.group(index++));
 
diff --git a/src/org/traccar/protocol/Tr20ProtocolDecoder.java b/src/org/traccar/protocol/Tr20ProtocolDecoder.java
index 9bd1ccaaf..085a87771 100644
--- a/src/org/traccar/protocol/Tr20ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Tr20ProtocolDecoder.java
@@ -124,9 +124,6 @@ public class Tr20ProtocolDecoder extends BaseProtocolDecoder {
             // Course
             position.setCourse(Double.valueOf(parser.group(index++)));
 
-            // Altitude
-            position.setAltitude(0.0);
-
             // Extended info
             position.setExtendedInfo(extendedInfo.toString());
 
diff --git a/src/org/traccar/protocol/Tr900ProtocolDecoder.java b/src/org/traccar/protocol/Tr900ProtocolDecoder.java
index f8890f954..e24063218 100644
--- a/src/org/traccar/protocol/Tr900ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Tr900ProtocolDecoder.java
@@ -109,9 +109,6 @@ public class Tr900ProtocolDecoder extends BaseProtocolDecoder {
         if (hemisphere.compareTo("S") == 0) latitude = -latitude;
         position.setLatitude(latitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
diff --git a/src/org/traccar/protocol/TramigoProtocolDecoder.java b/src/org/traccar/protocol/TramigoProtocolDecoder.java
index e0bab0483..e6318a3ee 100644
--- a/src/org/traccar/protocol/TramigoProtocolDecoder.java
+++ b/src/org/traccar/protocol/TramigoProtocolDecoder.java
@@ -82,7 +82,6 @@ public class TramigoProtocolDecoder extends BaseProtocolDecoder {
 
             position.setLatitude(buf.readUnsignedInt() * 0.0000001);
             position.setLongitude(buf.readUnsignedInt() * 0.0000001);
-            position.setAltitude(0.0);
 
             buf.readUnsignedShort(); // GSM signal quality
             buf.readUnsignedShort(); // satellites in fix
@@ -121,17 +120,13 @@ public class TramigoProtocolDecoder extends BaseProtocolDecoder {
             }
             position.setLatitude(Double.valueOf(matcher.group(1)));
             position.setLongitude(Double.valueOf(matcher.group(2)));
-            position.setAltitude(0.0);
 
             // Speed and Course
             pattern = Pattern.compile("([NSWE]{1,2}) with speed (\\d+) km/h");
             matcher = pattern.matcher(sentence);
             if (matcher.find()) {
                 position.setSpeed(Double.valueOf(matcher.group(2)) * 0.539957);
-                position.setCourse(0.0); // matcher.group(1) for course
-            } else {
-                position.setSpeed(0.0);
-                position.setCourse(0.0);
+                position.setCourse(0); // matcher.group(1) for course
             }
 
             // Time
diff --git a/src/org/traccar/protocol/TytanProtocolDecoder.java b/src/org/traccar/protocol/TytanProtocolDecoder.java
index 8df8f6a25..b52e83852 100644
--- a/src/org/traccar/protocol/TytanProtocolDecoder.java
+++ b/src/org/traccar/protocol/TytanProtocolDecoder.java
@@ -84,9 +84,6 @@ public class TytanProtocolDecoder extends BaseProtocolDecoder {
             lon = lon * 360 / 16777216 - 180;
             position.setLongitude(lon);
             
-            // Altitude
-            position.setAltitude(0.0);
-            
             // Course
             int course = (buf.readUnsignedByte() >> 5) * 45;
             course = (course + 180) % 360;
@@ -94,9 +91,7 @@ public class TytanProtocolDecoder extends BaseProtocolDecoder {
             
             // Speed
             int speed = buf.readUnsignedByte();
-            if (speed >= 250) {
-                position.setSpeed(0.0);
-            } else {
+            if (speed < 250) {
                 position.setSpeed(speed * 0.539957);
             }
             
diff --git a/src/org/traccar/protocol/V680ProtocolDecoder.java b/src/org/traccar/protocol/V680ProtocolDecoder.java
index 6e85640c0..d507a48e0 100644
--- a/src/org/traccar/protocol/V680ProtocolDecoder.java
+++ b/src/org/traccar/protocol/V680ProtocolDecoder.java
@@ -122,16 +122,11 @@ public class V680ProtocolDecoder extends BaseProtocolDecoder {
             if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
             position.setLatitude(latitude);
 
-            // Altitude
-            position.setAltitude(0.0);
-
             // Speed and Course
             position.setSpeed(Double.valueOf(parser.group(index++)));
             String course = parser.group(index++);
             if (course != null) {
                 position.setCourse(Double.valueOf(course));
-            } else {
-                position.setCourse(0.0);
             }
 
             // Date
diff --git a/src/org/traccar/protocol/VisiontekProtocolDecoder.java b/src/org/traccar/protocol/VisiontekProtocolDecoder.java
index b61500bd9..47ad5a59b 100644
--- a/src/org/traccar/protocol/VisiontekProtocolDecoder.java
+++ b/src/org/traccar/protocol/VisiontekProtocolDecoder.java
@@ -119,8 +119,6 @@ public class VisiontekProtocolDecoder extends BaseProtocolDecoder {
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Additional data
diff --git a/src/org/traccar/protocol/WialonProtocolDecoder.java b/src/org/traccar/protocol/WialonProtocolDecoder.java
index 76cf9b924..b01dc24f7 100644
--- a/src/org/traccar/protocol/WialonProtocolDecoder.java
+++ b/src/org/traccar/protocol/WialonProtocolDecoder.java
@@ -111,24 +111,18 @@ public class WialonProtocolDecoder extends BaseProtocolDecoder {
         String speed = parser.group(index++);
         if (speed != null) {
             position.setSpeed(Double.valueOf(speed) * 0.539957);
-        } else {
-            position.setSpeed(0.0);
         }
 
         // Course
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Altitude
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Satellites
diff --git a/src/org/traccar/protocol/Xexun2ProtocolDecoder.java b/src/org/traccar/protocol/Xexun2ProtocolDecoder.java
index bfd20c64b..eff4fcdbd 100644
--- a/src/org/traccar/protocol/Xexun2ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Xexun2ProtocolDecoder.java
@@ -115,8 +115,6 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
@@ -144,8 +142,6 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Power
diff --git a/src/org/traccar/protocol/XexunProtocolDecoder.java b/src/org/traccar/protocol/XexunProtocolDecoder.java
index bf119808d..737a15096 100644
--- a/src/org/traccar/protocol/XexunProtocolDecoder.java
+++ b/src/org/traccar/protocol/XexunProtocolDecoder.java
@@ -95,9 +95,6 @@ public class XexunProtocolDecoder extends BaseProtocolDecoder {
         }
         position.setLongitude(longitude);
 
-        // Altitude
-        position.setAltitude(0.0);
-
         // Speed
         position.setSpeed(Double.valueOf(parser.group(index++)));
 
@@ -105,8 +102,6 @@ public class XexunProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
 
         // Date
diff --git a/src/org/traccar/protocol/Xt7ProtocolDecoder.java b/src/org/traccar/protocol/Xt7ProtocolDecoder.java
index 1e5396f22..bcc17cfb2 100644
--- a/src/org/traccar/protocol/Xt7ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Xt7ProtocolDecoder.java
@@ -121,12 +121,7 @@ public class Xt7ProtocolDecoder extends BaseProtocolDecoder {
         String course = parser.group(index++);
         if (course != null) {
             position.setCourse(Double.valueOf(course));
-        } else {
-            position.setCourse(0.0);
         }
-        
-        // Altitude
-        position.setAltitude(0.0);
 
         // Date
         time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
diff --git a/src/org/traccar/protocol/YwtProtocolDecoder.java b/src/org/traccar/protocol/YwtProtocolDecoder.java
index fa17d6f43..babf23d77 100644
--- a/src/org/traccar/protocol/YwtProtocolDecoder.java
+++ b/src/org/traccar/protocol/YwtProtocolDecoder.java
@@ -121,8 +121,6 @@ public class YwtProtocolDecoder extends BaseProtocolDecoder {
         String altitude = parser.group(index++);
         if (altitude != null) {
             position.setAltitude(Double.valueOf(altitude));
-        } else {
-            position.setAltitude(0.0);
         }
 
         // Speed