diff --git a/applications/apertif/matlab/one_pfb.m b/applications/apertif/matlab/one_pfb.m
index 702f6258e483587050f66b099a22aaa612b1e4ae..bc2c8a750abfe431004ee18e790871368c338adc 100644
--- a/applications/apertif/matlab/one_pfb.m
+++ b/applications/apertif/matlab/one_pfb.m
@@ -95,7 +95,7 @@ if strcmp(tb.model_filterbank, 'LOFAR')
     tb.nof_subbands       = 512;
 else
     tb.model_quantization = 'floating point';
-    %tb.model_quantization = 'fixed point';
+    tb.model_quantization = 'fixed point';
     tb.nof_subbands = 64;
 end
 
@@ -106,7 +106,7 @@ tb.subband_wg        = 47;           % subband range 0:tb.nof_subbands-1, can be
 
 % Model a frequency sweep of the 'sinusoid'
 tb.chirp             = 0;              % 0 = use fixed tb.subband_wg frequency, else increment WG frequency every block to have chirp frequency sweep
-%tb.chirp             = 1;
+tb.chirp             = 1;
 if tb.chirp
     tb.nof_tsub      = 200;            % number of subband periods to simulate
 else