diff --git a/applications/apertif/commissioning/dish_setup_arts.py b/applications/apertif/commissioning/dish_setup_arts.py
index 07392c5a5e4868a14b9002b634ff8f88e0c589da..cb2bbf29752e3f34bfeb4553377696b792b2193a 100644
--- a/applications/apertif/commissioning/dish_setup_arts.py
+++ b/applications/apertif/commissioning/dish_setup_arts.py
@@ -69,6 +69,7 @@ if tc.scheme=='arts_sc1':
 
 if tc.scheme=='arts_sc4':
     macScheme = '300MHz_37CB'    # Use R_beam as used by Apertif MAC, remap beamlet output for Arts SC4 with R_beamout
+    #macScheme = '300MHz_40CB'    # Use R_beam with 40 CB to match 40 CB in arts_sc4
     #macScheme = 'arts_sc4'       # Use R_beam for Arts SC4 will result in transparent R_beamout
 
 if tc.run: