diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/UBXUtil.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/UBXUtil.java
index 92c5eaaa..e31915ea 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/UBXUtil.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/bd/UBXUtil.java
@@ -41,7 +41,11 @@ public class UBXUtil {
         short status = (short) ((data.getUnsignedByte(pos+60) & 0x18)>>3); //mask: 00011000
         if(status == 2){
             return new double[]{relPosE,relPosN,relPosD,FIX_RESULT};
-        }else{
+        }
+        else if(status == 1){
+            return new double[]{relPosE,relPosN,relPosD,NO_FIX_RESULT};
+        }
+        else{
             return new double[]{0,0,0,NO_FIX_RESULT};
         }
     }