diff --git a/.ipynb_checkpoints/Cs transitions-checkpoint.ipynb b/.ipynb_checkpoints/Cs transitions-checkpoint.ipynb
index b6800c3..301d688 100644
--- a/.ipynb_checkpoints/Cs transitions-checkpoint.ipynb	
+++ b/.ipynb_checkpoints/Cs transitions-checkpoint.ipynb	
@@ -32,6 +32,30 @@
     "beat/64/MHz"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "-137.10596515625"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "F3lock = (CsD2_32 + CsD2_33)/2\n",
+    "F3lock/GHz\n",
+    "beat = (CsD2_45 - 110*MHz -  F3lock)\n",
+    "beat/GHz\n",
+    "beat/64/MHz"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 13,
diff --git a/Cs transitions.ipynb b/Cs transitions.ipynb
index b6800c3..4017ca1 100644
--- a/Cs transitions.ipynb	
+++ b/Cs transitions.ipynb	
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -34,7 +34,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "-137.10596515625"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "F3lock = (CsD2_32 + CsD2_33)/2\n",
+    "F3lock/GHz\n",
+    "beat = (CsD2_45 - 110*MHz -  F3lock)\n",
+    "beat/GHz\n",
+    "beat/64/MHz"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -43,7 +67,7 @@
        "0.15625"
       ]
      },
-     "execution_count": 13,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -54,7 +78,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -63,7 +87,7 @@
        "31.25"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -71,6 +95,13 @@
    "source": [
     "2000/64"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {