diff --git a/README b/README
index 221fa29..df07fd6 100644
--- a/README
+++ b/README
@@ -2,3 +2,6 @@
 Tool to replay udp datagram
 
 it is also capable of changing the Time of Day of the Asterix 34/48 messages to reflect the current time
+
+# atxDepack
+In a pcap file separate the asterix messages to have only one asterix message for datagram