diff --git a/bridge_master.py b/bridge_master.py
index 0dd382e..d69102e 100644
--- a/bridge_master.py
+++ b/bridge_master.py
@@ -39,7 +39,7 @@ import importlib.util
 import re
 import copy
 from setproctitle import setproctitle
-from crccheck.crc import Crc32
+#from crccheck.crc import Crc32
 from hashlib import sha1
 
 # Twisted is pretty important, so I keep it separate
@@ -1461,12 +1461,13 @@ class routerOBP(OPENBRIDGE):
             systems[_target]._report.send_bridgeEvent('UNIT DATA,START,TX,{},{},{},{},{},{}'.format(_target, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, _int_dst_id).encode(encoding='utf-8', errors='ignore'))
 
 
-    def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
+    def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data,_hash):
         pkt_time = time()
         dmrpkt = _data[20:53]
         _bits = _data[15]
-        _pkt_crc = Crc32.calc(_data[4:53])
+        _#pkt_crc = Crc32.calc(_data[4:53])
         #_pkt_crc = Crc32.calc(dmrpkt)
+        )pkt_crc = _hash
         
 
         # Match UNIT data, SMS/GPS, and send it to the dst_id if it is in SUB_MAP
diff --git a/hblink.py b/hblink.py
index b12b529..8017b48 100755
--- a/hblink.py
+++ b/hblink.py
@@ -166,7 +166,7 @@ class OPENBRIDGE(DatagramProtocol):
             logger.debug('(%s) *BridgeControl* Not sent BCSQ Source Quench TARGET_IP not known , TG: %s, Stream ID: %s',self._system,int_id(_tgid))
     
 
-    def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
+    def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data,_hash):
         pass
         #print(int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_seq), _slot, _call_type, _frame_type, repr(_dtype_vseq), int_id(_stream_id))
 
@@ -245,7 +245,7 @@ class OPENBRIDGE(DatagramProtocol):
                         return
 
                 # Userland actions -- typically this is the function you subclass for an application
-                self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data)
+                self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data,_hash)
                 #Silently treat a DMRD packet like a keepalive - this is because it's traffic and the 
                 #Other end may not have enabled ENAHNCED_OBP
                 self._config['_bcka'] = time()