diff --git a/apmaster.json b/apmaster.json
index 3f18ece..68cba44 100644
--- a/apmaster.json
+++ b/apmaster.json
@@ -11,29 +11,25 @@
             "type": "urukul",
             "dds": "ad9912",
             "ports": [1, 2],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "urukul",
             "dds": "ad9912",
             "ports": [3, 4],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "urukul",
             "dds": "ad9912",
             "ports": [5, 6],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "urukul",
             "dds": "ad9912",
             "ports": [7, 8],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "dio",
diff --git a/apsatellite2.json b/apsatellite2.json
index 2a78401..5e55f0b 100644
--- a/apsatellite2.json
+++ b/apsatellite2.json
@@ -20,15 +20,13 @@
             "type": "urukul",
             "dds": "ad9912",
             "ports": [3],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "urukul",
             "dds": "ad9912",
             "ports": [4],
-            "clk_sel": 2,
-            "synchronization": true
+            "clk_sel": 2
         },
         {
             "type": "sampler",