diff --git a/signalgen.py b/signalgen.py
index 45d5984..db898e7 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -149,13 +149,13 @@ def addBurst(values):
 		src_raj=filterbankObj.your_header.ra_deg,  
 		src_dej=filterbankObj.your_header.dec_deg,  
 		machine_id=0,
-		nbeams=0,
+		nbeams=1,
 		ibeam=0,
 		nbits=filterbankObj.your_header.nbits,
 		nifs=1,
 		barycentric=0,
 		pulsarcentric=0,
-		data_type=0,
+		data_type=1,
 		az_start=-1,
 		za_start=-1,
 	)