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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 22 : Personal Communication Systems"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 1 : pg 842"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The mobile transmitted power in dBm is 24 dBm\n",
+      "Case 2 : The mobile transmitted power is 100 mW\n"
+     ]
+    }
+   ],
+   "source": [
+    " \n",
+    "# page no 842\n",
+    "# prob no 22.1\n",
+    "#calculate the mobile transmitted power\n",
+    "#given\n",
+    "PR = -100;#In dBm\n",
+    "#calculations and results\n",
+    "# The mobile transmitted power is\n",
+    "PT_dBm =-76-PR;#this is in dBm\n",
+    "print 'The mobile transmitted power in dBm is',PT_dBm,'dBm'\n",
+    "PT_mW =10**(PT_dBm/10);\n",
+    "print 'Case 2 : The mobile transmitted power is',PT_mW,'mW'"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 2",
+   "language": "python",
+   "name": "python2"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}