From e2ec2d17b751dc3f3b829cee8693999d9ed08f40 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Tue, 22 Jun 2021 22:27:52 -0700
Subject: Handle negative altitude values

---
 src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
index 992b5c43a..652ba3f6a 100644
--- a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
@@ -54,7 +54,7 @@ public class MictrackProtocolDecoder extends BaseProtocolDecoder {
             .expression("([EW]),")
             .number("(d+.?d*)?,")                // speed
             .number("(d+.?d*)?,")                // course
-            .number("(d+.?d*)?,")                // altitude
+            .number("(-?d+.?d*)?,")              // altitude
             .number("(dd)(dd)(dd)")              // date (ddmmyy)
             .compile();
 
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