diff --git a/grc/PicoSDR-WBFM.grc b/grc/PicoSDR-WBFM.grc
index fd848c6..9ade9bd 100644
--- a/grc/PicoSDR-WBFM.grc
+++ b/grc/PicoSDR-WBFM.grc
@@ -205,7 +205,7 @@ blocks:
     ant8: ''
     ant9: ''
     args: '"rtl_tcp"'
-    bb_gain0: '20'
+    bb_gain0: '0'
     bb_gain1: '20'
     bb_gain10: '20'
     bb_gain11: '20'
@@ -374,7 +374,7 @@ blocks:
     freq7: 100e6
     freq8: 100e6
     freq9: 100e6
-    gain0: '10'
+    gain0: '0'
     gain1: '10'
     gain10: '10'
     gain11: '10'
@@ -438,7 +438,7 @@ blocks:
     gain_mode7: 'False'
     gain_mode8: 'False'
     gain_mode9: 'False'
-    if_gain0: '20'
+    if_gain0: '0'
     if_gain1: '20'
     if_gain10: '20'
     if_gain11: '20'