BUDDIPOLE IN THE FIELD

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Buddipole Beach Antenna Cookbook The configurations are identical for the beach verticals and ground mounted verticals. Radiator lengths, coil settings, and other setup information does not change just because we move closer to the water. Similarly, the guidelines and caveats for ground mounted antennas also apply. For best performance, use a full-sized vertical radiator. If a fullsized radiator is not possible, make the radiator as long as you can. Losses from inductive or capacitive reactance, losses through coils, reduced radiation resistance, and poor matching to the 50 ohms expected by the radio can reduce current and therefore power in the antenna system. The following plots compare the best configurations for each band deployed over average ground and the waterline of the beach. As seen in the comparisons, antenna gain increases significantly (resulting from reduced ground losses), and the takeoff angle drops by the saltwater. 10m Far field plot for 10m antenna over average ground Far field plot for 10m antenna on the beach 99
12m Far field plot for 12m antenna over average ground Far field plot for 12m antenna on the beach 15m Far field plot for 15m antenna over average ground Far field plot for 15m antenna on the beach 100
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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
Page 64 and 65: 12m elevation plot at 16 feet 12m e
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: An elevated vertical monopole with
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 and 124: 12m Buddistick The Buddistick shoul
Page 125 and 126: 17m 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
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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
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BNC BUG CC CWA dB Connector type Li
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References ARRL. More Wire Antenna
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In passing Many books and articles
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BUDDIPOLE IN THE FIELD

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