diff --git a/policies/llrf.policies b/policies/llrf.policies
index 89b6db1..fe4b628 100644
--- a/policies/llrf.policies
+++ b/policies/llrf.policies
@@ -175,7 +175,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"PT3D",
+            "ttl":"P3D",
             "modulo":1
          }
          ,
@@ -205,7 +205,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"PT3D",
+            "ttl":"P3D",
             "modulo":1
          }
          ,
@@ -235,7 +235,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"PT3D",
+            "ttl":"P3D",
             "modulo":1
          }
          ,