BUDDIPOLE IN THE FIELD

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Acknowledgements The danger of one of these lists is that someone is always omitted, much to the chagrin of the list creator. Well, here goes: Chris (W6HFP) and Budd (W3FF) Drummond of Buddipole, Inc. have been extremely supportive of my 100 Pound DXpedition ideas and the development of this book. Without them there would be no Buddipole. My elmer Dave Bushong (KZ1O) has been patient with my endless stream of questions that began even before licensing. The Buddipole Users on Montserrat (BUMs) group Chris and Budd, Mike Greenwood (KC4VG), Paul Van Dyke (KB9AVO), Tom Clarke (W4OKW), and Bob Follett (KT7L) who were patient with me during the 2007 DXpedition project. Many photographs in this book were from that trip. The Buddies in the Caribbean team (J6 DXpedition) Chris, Budd, Mike, and Paul from the BUMs, Dan Gagnon (WZ1P), Steve Galchutt (WG0AT), Guy Hamblen (N7UN), and Wey Walker (K8EAB). Special thanks go to Charlie Learoyd (K1PUB), Rich Crisafulli (AB1HD), Rick Green (W1RAG), and Allison Parent (KB1GMX) for reading early drafts of the book, and providing great guidance for moving it forward. Finally, and most importantly, to Sandy Peters, the home team, who never asked if I was “born in a barn” when I was running in-and-out of the house testing all these configurations. This could not have been done without her unflagging support. I’ve had great help with this effort. Any errors or omissions in this book are my fault alone. A note on Buddipole product descriptions All product information contained in this book was accurate as of its first publication. That said, Buddipole, Inc. regularly introduces new products and makes improvements to existing products. Some products may be replaced by new versions that do not have precise compatibility or operating characteristics as those they replaced. (This has already happened. The coils from the earliest Buddipole models were redesigned for later models.) Every effort has been made to ensure the advice in this book is accurate, but changes to the Buddipole components may have incompatibilities with the descriptions in this text. Please visit www.buddipole.com or the Yahoo! Buddipole User Group to obtain the latest data on Buddipole products, and updates to this book.
About the Author B. Scott Andersen, NE1RD, was born and raised in rural Illinois. He graduated from Southern Illinois University Carbondale in 1981 with a degree in Computer Science. He relocated to the Boston area thereafter. Scott held a commercial radio license in the 1970’s, but the amateur radio license would not come until 2002. Once licensed, his call sign from the Amateur Extra pool AB1BL was quickly replaced by the vanity call NE1RD. He is an avid builder, contester, and lightweight DXpeditioner. During his 100 Pound DXpeditions he has operated from Montserrat (VP2M), St. Kitts (V4), St. John (USVI), and various other islands recognized by the RSGB IOTA program. His next adventure is to St. Thomas, USVI (KP2) in March of 2010. Scott is a software engineer working for a company specializing in safety critical software. When he is not watching baseball, reading, or traveling, he writes and develops software for the amateur radio community. Scott resides in Acton, Massachusetts with Sandy, the woman of his dreams, to whom this book is dedicated. www.bsandersen.com
Page 1 and 2: BUDDIPOLE IN THE FIELD by B. Scott
Page 3 and 4: Buddipole in the Field Published b
Page 6 and 7: Foreword Back in early 2000 a self-
Page 8 and 9: Preface When the term ham radio sta
Page 12 and 13: How to use this book Though the Bud
Page 14: Table of Contents 1 THE BUDDIPOLE
Page 17 and 18: all—though this book will cover m
Page 19 and 20: 7 Buddipole on the Beach Beaches bo
Page 21 and 22: A note to Buddistick users The Budd
Page 23 and 24: The VersaTee is the heart of the Bu
Page 25 and 26: All these pieces come together to c
Page 27 and 28: proper turn of the wire, orient the
Page 29 and 30: All of the discussions above are fo
Page 31 and 32: The Mast Guying Kit consists of thr
Page 33 and 34: picnic table with a clamp securing
Page 35 and 36: Extra coil clips are strong and bri
Page 37 and 38: If using the 16 foot mast, insert t
Page 39 and 40: expects to see a 50 ohm load to an
Page 41 and 42: Power ratio dB Power ratio dB 1.25:
Page 43 and 44: Consider an antenna that is 1% effi
Page 45 and 46: An alternative is to use precise ma
Page 47 and 48: factors. How will such compromises
Page 49 and 50: directions we care about. That is,
Page 51 and 52: details, including the important co
Page 53 and 54: Figure 13 Elevation plot for a Budd
Page 56 and 57: 5 Balconies and Rooftops The Buddip
Page 58 and 59: BASIC DIPOLE TUNING WITH 9.5 FOOT W
Page 60 and 61:
shows (from left to right) a whip,
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10m elevation plot at 16 feet 10m e
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Page 66 and 67:
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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
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The antenna is short for a 15m ante
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Standard Buddipole Long whip Vertic
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SWR plot for shortened vertical Far
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Just replacing the 5.5' whip with t
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40m vertical A 40m vertical antenna
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Standard Buddipole 4x arms 9.5' whi
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An elevated vertical monopole with
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12m Far field plot for 12m antenna
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30m Far field plot for 30m antenna
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104 Clamp Mounting plate Typical de
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Buddistick Cookbook All Buddistick
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12m Buddistick The Buddistick shoul
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17m Buddistick The Buddistick shoul
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20m Buddistick SWR 20m Buddistick f
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Figure 51 Buddipole 6m two element
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Figure 54 SWR plot for Buddipole 6m
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The whips connected to the VersaTee
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2m three element Yagi A 3 element Y
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10m 2 element Yagi The 10m two elem
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12m 2 element Yagi The 12m Yagi is
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126
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Table 11 shows configuration option
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SWR for 80m antenna with 16 radials
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Antenna setup from Buddipole Low Ba
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system and the 2 radial system is i
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60m The 60m band consists of five c
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SWR plot for 60m vertical Far field
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140
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focus on what was important, and wh
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144
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Appendix B Buddipole Low Band Coil
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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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