From e0f15c6a21c188edd61ca78d034aaf1505fb59cb Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 12 Sep 2020 22:58:40 -0700
Subject: Refactor NMEA checksum

---
 src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java')

diff --git a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
index cc187225b..c158d3212 100644
--- a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
@@ -69,7 +69,8 @@ public class GpsGateProtocolDecoder extends BaseProtocolDecoder {
 
     private void send(Channel channel, SocketAddress remoteAddress, String message) {
         if (channel != null) {
-            channel.writeAndFlush(new NetworkMessage(message + Checksum.nmea(message) + "\r\n", remoteAddress));
+            channel.writeAndFlush(new NetworkMessage(
+                    message + Checksum.nmea(message.substring(1)) + "\r\n", remoteAddress));
         }
     }
 
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