BUDDIPOLE IN THE FIELD

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SWR plot for 60m vertical Far field plot for 60m vertical Figure 77 SWR and far field plot for 60m vertical (5.5’ whip) over average ground The 2:1 SWR bandwidth for this antenna is very small. Substituting the longer 9.5 foot whip for the 5.5 foot whip smoothes the SWR curve. Standard Buddipole with low band coil TRSB 9.5’ whip Vertical element 9.5' whip: 5+ sections (9 foot 2 inches) Two antenna accessory arm Low band coil: tap 13 TRSB set to 2:1 This antenna configuration produces the following results including a 3:1 SWR bandwidth across all five channels. 137
SWR plot for 60m vertical Far field plot for 60m vertical Figure 78 SWR and far field plot for 60m vertical (9.5’ whip) over average ground A second radial deployed on the opposite side of the first similar to the geometry of Figure 74 evens the far field pattern, reducing “deafness” on the left side of the far field plot. Standard Buddipole with low band coil TRSB 9.5’ whip 4 arms Vertical element 9.5 foot whip: 6 sections (all out) Four antenna accessory arm Low band coil: tap 12 TRSB set to 2:1 The longest vertical configuration has the following expected performance. 138
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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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Other configurations for this anten
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180 degrees Vertical dipole 170 deg
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Antenna deployment Far field elevat
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the dipole. However, as soon as we
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17m vertical with 2 radials Far fie
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Perfect ground Saltwater Figure 28
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The table above may not be the fina
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Buddipole configurations cannot eas
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impedance values are complex number
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Buddipole Ground Mounted Verticals
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terminated with a ring connector, a
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The downward sloping wire radials r
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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 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: 60m The 60m band consists of five c
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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
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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