diff --git a/csdr/module/rtl433.py b/csdr/module/rtl433.py
index e8aef582..d480c1a0 100644
--- a/csdr/module/rtl433.py
+++ b/csdr/module/rtl433.py
@@ -5,16 +5,18 @@ from csdr.module import PopenModule
 class Rtl433Module(PopenModule):
     def __init__(self, sampleRate: int = 48000, jsonOutput: bool = False):
         self.sampleRate = sampleRate
+        self.jsonOutput = jsonOutput
         super().__init__()
 
     def getCommand(self):
         return [
             "rtl_433", "-r", "cs16:-", "-s", str(self.sampleRate),
-            "-F", "json" if jsonOutput else "kv",
+            "-F", "json" if self.jsonOutput else "kv",
 # These need 48kHz, 24kHz is not enough for them
 #            "-R", "-80",  "-R", "-149", "-R", "-154", "-R", "-160",
 #            "-R", "-161", "-R", "-167", "-R", "-178",
-            "-R", "64", "-A",
+#            "-R", "64",
+            "-A",
         ]
 
     def getInputFormat(self) -> Format: