add NIC decoding

run_test.py

@@ -12,10 +12,10 @@ print 'Call sign:', cs
 print
 
 # decode position
-msg0 = '8D51004E901DF3041D06127582A1'
-msg1 = '8D51004E901DF66EB4FEE010C7A9'
-t0 = 1442566675
-t1 = 1442566674
+msg0 = '8D40058B58C901375147EFD09357'
+msg1 = '8D40058B58C904A87F402D3B8C59'
+t0 = 1446332400
+t1 = 1446332405
 pos = decoder.get_position(msg0, msg1, t0, t1)
 print 'Message E:', msg0
 print 'Message O:', msg1
@@ -28,3 +28,11 @@ sh = decoder.get_speed_heading(msg)
 print 'Message:', msg
 print 'Speed and heading:', sh
 print
+
+# test NIC
+# decode position
+msg = '8D40058B58C901375147EFD09357'
+nic = decoder.get_nic(msg1)
+print 'Message:', msg
+print 'NIC:', nic
+print