J Pole Antenna.ipynb

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    "## J Pole Antenna Formula\n",
    "\n",
    "<div class=\"alert alert-warning\" role=\"alert\" style=\"margin: 10px\">\n",
    "<p>Let \"frequency\" represents your desire antenna frequency in Hz.\n",
    "</p>\n",
    "</div>\n",
    "\n"
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      "A long section: 1.478m (147.8cm)\n",
      "B short section: 0.493m (49.3cm)\n",
      "C Feed point: 0.049m (4.9cm)\n",
      "D spacing: 0.049m (4.9cm)\n"
     ]
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    "frequency = 144.64e6\n",
    "\n",
    "lamda = (3e8 / float( frequency ))\n",
    "A_length = lamda * ( 3.0 / 4.0)\n",
    "\n",
    "print(u\"A long section: %.3fm (%.1fcm)\" % (A_length * 0.95, A_length * 0.95 * 100.0))\n",
    "\n",
    "B_length = lamda * ( 1.0 / 4.0)\n",
    "print(u\"B short section: %.3fm (%.1fcm)\" % (B_length * 0.95, B_length * 0.95 * 100.0))\n",
    "\n",
    "C_length = lamda * ( 0.025 )\n",
    "\n",
    "print(u\"C Feed point: %.3fm (%.1fcm)\" % (C_length * 0.95, C_length * 0.95 * 100.0))\n",
    "\n",
    "D_length = lamda * ( 0.025 )\n",
    "\n",
    "print(u\"D spacing: %.3fm (%.1fcm)\" % (D_length * 0.95, D_length * 0.95 * 100.0))\n"

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