diff --git a/sec-api/src/main/java/com/imdroid/secapi/dto/GnssGroup.java b/sec-api/src/main/java/com/imdroid/secapi/dto/GnssGroup.java
index 12ac9235..a053c539 100644
--- a/sec-api/src/main/java/com/imdroid/secapi/dto/GnssGroup.java
+++ b/sec-api/src/main/java/com/imdroid/secapi/dto/GnssGroup.java
@@ -35,7 +35,7 @@ public class GnssGroup implements Serializable {
                 +HexUtil.Byte2HexString((byte) active_offset.intValue())
                 +((device.getDevicetype() == GnssDevice.TYPE_ROVER)?"00":HexUtil.Byte2HexString((byte) rs_adv.shortValue()))
                 +HexUtil.Byte2HexString((byte) power_mode.shortValue())
-                +HexUtil.Byte2HexString((byte) gnss_sample_s.shortValue());
+                +"01";//HexUtil.Byte2HexString((byte) gnss_sample_s.shortValue());
         return cmd;
     }