BUDDIPOLE IN THE FIELD

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15m Buddistick The Buddistick should present about 14 ohms of radiation resistance for this band. The feedpoint impedance will be a bit low (near 30 ohms) with that additional impedance a result of losses (mostly ground losses). The antenna can be further tuned to resonance by extending or retracting the length of the radial wire. Standard Buddistick Vertical element Two 11" antenna accessory arm Coil: tap 6 5.5' whip: 6 sections (all out) Radial Wire: 11 feet (132 inches) A properly tuned system will provide a good 2:1 SWR bandwidth across the entire 15m band. The performance plots for this band are shown below. 15m Buddistick SWR 15m Buddistick far field plot Figure 47 SWR and far field plot for a 15m Buddistick 109
17m Buddistick The Buddistick should present about 10 ohms of radiation resistance for this band. The total feedpoint impedance will be near 25 ohms. The additional impedance is due to losses, mostly ground losses. The antenna can be further tuned to resonance by extending or retracting the length of the radial wire. Standard Buddistick Vertical element Two 11" antenna accessory arm Coil: tap 9 5.5' whip: 6 sections (all out) Radial Wire: 13 feet (156 inches) A properly tuned system will provide 2:1 SWR bandwidth across the entire 17m band. (The optional Triple Ratio Switch Balun with a 2:1 setting would match this antenna very well to a radio.) The performance plots for this band are shown below. 17m Buddistick SWR 17m Buddistick far field plot Figure 48 SWR and far field plot for a 17m Buddistick 110
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BUDDIPOLE IN THE FIELD by B. Scott
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Buddipole in the Field Published b
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Foreword Back in early 2000 a self-
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Preface When the term ham radio sta
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Acknowledgements The danger of one
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How to use this book Though the Bud
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Table of Contents 1 THE BUDDIPOLE
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all—though this book will cover m
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7 Buddipole on the Beach Beaches bo
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A note to Buddistick users The Budd
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The VersaTee is the heart of the Bu
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All these pieces come together to c
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proper turn of the wire, orient the
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All of the discussions above are fo
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The Mast Guying Kit consists of thr
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picnic table with a clamp securing
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Extra coil clips are strong and bri
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If using the 16 foot mast, insert t
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expects to see a 50 ohm load to an
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Power ratio dB Power ratio dB 1.25:
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Consider an antenna that is 1% effi
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An alternative is to use precise ma
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factors. How will such compromises
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directions we care about. That is,
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details, including the important co
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Figure 13 Elevation plot for a Budd
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5 Balconies and Rooftops The Buddip
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BASIC DIPOLE TUNING WITH 9.5 FOOT W
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shows (from left to right) a whip,
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10m elevation plot at 16 feet 10m e
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Page 74: Other configurations for this anten
Page 77 and 78: 180 degrees Vertical dipole 170 deg
Page 79 and 80: Antenna deployment Far field elevat
Page 81 and 82: the dipole. However, as soon as we
Page 83 and 84: 17m vertical with 2 radials Far fie
Page 85 and 86: Perfect ground Saltwater Figure 28
Page 87 and 88: The table above may not be the fina
Page 89 and 90: Buddipole configurations cannot eas
Page 91 and 92: impedance values are complex number
Page 93 and 94: Buddipole Ground Mounted Verticals
Page 95 and 96: terminated with a ring connector, a
Page 97 and 98: The downward sloping wire radials r
Page 99 and 100: Standard Buddipole with coil Option
Page 101 and 102: The antenna is short for a 15m ante
Page 103 and 104: Standard Buddipole Long whip Vertic
Page 105 and 106: SWR plot for shortened vertical Far
Page 107 and 108: Just replacing the 5.5' whip with t
Page 109 and 110: 40m vertical A 40m vertical antenna
Page 111 and 112: Standard Buddipole 4x arms 9.5' whi
Page 113 and 114: An elevated vertical monopole with
Page 115 and 116: 12m Far field plot for 12m antenna
Page 117 and 118: 30m Far field plot for 30m antenna
Page 119 and 120: 104 Clamp Mounting plate Typical de
Page 121 and 122: Buddistick Cookbook All Buddistick
Page 123: 12m Buddistick The Buddistick shoul
Page 127 and 128: 20m Buddistick SWR 20m Buddistick f
Page 129 and 130: Figure 51 Buddipole 6m two element
Page 131 and 132: Figure 54 SWR plot for Buddipole 6m
Page 133 and 134: The whips connected to the VersaTee
Page 135 and 136: 2m three element Yagi A 3 element Y
Page 137 and 138: 10m 2 element Yagi The 10m two elem
Page 139 and 140: 12m 2 element Yagi The 12m Yagi is
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Page 143 and 144: Table 11 shows configuration option
Page 145 and 146: SWR for 80m antenna with 16 radials
Page 147 and 148: Antenna setup from Buddipole Low Ba
Page 149 and 150: system and the 2 radial system is i
Page 151 and 152: 60m The 60m band consists of five c
Page 153 and 154: SWR plot for 60m vertical Far field
Page 155 and 156: 140
Page 157 and 158: focus on what was important, and wh
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Page 161 and 162: Appendix B Buddipole Low Band Coil
Page 163 and 164: Appendix D NCDXF beacon transmit ti
Page 165 and 166: BNC BUG CC CWA dB Connector type Li
Page 167 and 168: References ARRL. More Wire Antenna
Page 169 and 170: In passing Many books and articles
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BUDDIPOLE IN THE FIELD

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