diff --git a/signalgen.py b/signalgen.py
index ec3e465..bc023ad 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -109,13 +109,13 @@ def addBurst(values):
 	injectedSpectra = inject.inject_constant_into_file(
 		yr_input = filterbankObj,
 		pulse = pulse,
-		start = samples // 4,
+		start = samples // 2,
     	gulp = samples
 	)
 
 	logger.info("Saving plot and filterbank.")
 	#and save the new plot and filterbank file
-	show_dynamic(spectra, f"{basename} Dynamic Spectra and {values.dm} DM Pulse", save=True)
+	show_dynamic(injectedSpectra, f"{basename} Dynamic Spectra and {values.dm} DM Pulse", save=True)
 	filWriter = Writer(filterbankObj, outdir="./", outname = f"{basename}_injected", nstart = 0, nsamp = samples)
 	filWriter.to_fil(data=injectedSpectra)
 	logger.info(f"{basename}_injected.fil successfully written.")