diff --git a/policies/llrf_measurements.policies b/policies/llrf_measurements.policies
index 1986e42..18e0ba0 100644
--- a/policies/llrf_measurements.policies
+++ b/policies/llrf_measurements.policies
@@ -71,7 +71,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"P2D", 
+            "ttl":"P1D", 
             "modulo":1
          }
          ,
@@ -93,7 +93,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"P2D", 
+            "ttl":"P1D", 
             "modulo":1
          }
          ,
@@ -115,7 +115,7 @@ Examples for ttl settings:
    "data_reduction":{
       "waveform":[
          {
-            "ttl":"P2D, 
+            "ttl":"P1D, 
             "modulo":1
          }
          ,