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Skip to content Ham Radio . Magnum Experimentum Antennas, experiments, engineering and other articles of interest to radio folks. Menu * Home * Radio Shorthand * Morse Abbreviations * Morse Code * Phonetic Alphabet * Q Signals * RST Signal Report * Tech Talk * Antenna Gain * Antenna Counterpoise * Digital * Logging Software * Amateur Radio, Why? * About * Privacy Policy * Terms and Conditions * Request Account * Contact * Sitemap * Advertise * Subjects * Activities * Antennas * contesting * Connectors * Digital Modes * EmComm * Installations * interfaces * Introspection * Lab Shootouts * Miscellaneous * mobile * NEC Shootouts * News * Operating Tips * power supply * Accessories * Promoting * Propagation * Public Service * Radios * Repair * Reviews * Safety * Software * station * Test Gear * Tomfoolery * Whackers * Menu * Home * Radio Shorthand * Morse Abbreviations * Morse Code * Phonetic Alphabet * Q Signals * RST Signal Report * Tech Talk * Antenna Gain * Antenna Counterpoise * Digital * Logging Software * Amateur Radio, Why? * About * Privacy Policy * Terms and Conditions * Request Account * Contact * Sitemap * Advertise * Subjects * Activities * Antennas * contesting * Connectors * Digital Modes * EmComm * Installations * interfaces * Introspection * Lab Shootouts * Miscellaneous * mobile * NEC Shootouts * News * Operating Tips * power supply * Accessories * Promoting * Propagation * Public Service * Radios * Repair * Reviews * Safety * Software * station * Test Gear * Tomfoolery * Whackers * AHVD History, theory and build instructions detailing this option for a freestanding portable vertical antenna for the 20-10m bands. DX ENGINEERING SUPPORTS AHVD ANTENNA June 14, 2018June 14, 2018 DX Engineering supports the build of the Asymmetrical Hatted Vertical Dipole (AHVD) antenna with standard and two custom parts. Categories Antennas Tags AHVD, dipole, DXE, vertical dipole BERRYVILLE 2015 August 3, 2015August 2, 2015 The AHVD, Small Loop antenna and some of the usual tailgate “stuff” was made ready for inspection at the Berryville hamfest. Categories Miscellaneous Tags AHVD, ham fest, small loop KX4O 1B-BATTERY VA FIELD DAY 2015 July 4, 2021July 5, 2015 Despite a weak battery and few contacts, our 1B-Battery effort verifies a 40m small-loop and packet-radio NTS messaging using quick deploy antennas. Categories Activities Tags 20m, 2m, 40m, AEA, AHVD, Aluminum, Arrow Antennas, battery, Comet, copper, D610, Dell, Digital Modes, DXE, Elecraft, FARA7, FBBS9, Field Day, IC-2AT, Icom, KX3, kx4o, lithium, magnetic loop, NTS, packet, packet radio, PK-88, portable, PX3, QRP, small loop, speaker stand, STL, TNC, toroid, transformer, tripod, USB, vacuum variable, Virginia NEW CHOKE CONFIGURATION FOR AHVD March 5, 2015July 31, 2014 Shown is a better configuration to fasten a choke to the Asymmetrical Hatted Vertical Dipole antenna. Categories Antennas Tags 20m, AHVD, Baluns, Field Day, GOTA 3D MODEL FOR AHVD ANTENNA May 23, 2018June 4, 2014 Presented is a 3D E-Drawings rendering of the Asymmetrical Hatted Vertical Dipole antenna. Categories Antennas Tags 3D, AHVD, Solidworks AHVD – END CAPS COME IN BAG OF 20 May 23, 2018February 5, 2014 Please note the end caps in the KX4O-000049 drawing show quantity 3, but they come in one bag of twenty. Don’t buy three bags. Categories Miscellaneous Tags AHVD, DX-Eng. AHVD AT RICHMOND FROSTFEST May 23, 2018January 27, 2014 The Asymmetrical Hatted Vertical Dipole was on hand at the Richmond Frostfest where the most popular question concerned the bandwidth of the antenna. Categories Miscellaneous Tags AHVD, Frostfest, vertical dipole AHVD WINTER WONDERLAND May 23, 2018December 10, 2013 The Asymmetrical Hatted Vertical Dipole (AHVD) worked quite well for some 10m contacts even with a load of ice on the elements. Categories Antennas Tags 10m, AHVD, hatted, vertical dipole HF AHVD ON 6M – PRACTICAL? May 28, 2016October 17, 2013 Will the KX4O version of the 20-10m Asymmetrical Hatted Vertical Dipole work on 6m? Yes, sort of. Categories Antennas Tags 6m, AHVD, asymmetrical, hatted, KX3, measurement, NEC, Simulation, vertical dipole, VHF THIS BALUN CHOKES January 1, 2021September 27, 2013 Jim (K9YC) Brown’s toroid winding recipes provide a superb RF choke balun for 30-10m using RG316 and a #43 toroid. Categories Antennas Tags AHVD, Baluns, choke, measurement, RG316, toroid HATTERAS HAM SHACK May 23, 2018July 24, 2013 I took the asymmetrical hatted vertical dipole to Hatteras beach to activate NA-067. I wasn’t very successful, but made a couple QSOs. Despite mixed results, the setting was spectacular. The vertical dipole worked. Categories Antennas Tags 20m, AHVD, asymmetrical, beach, Dr. Dre, Hatteras, KX3, kx4o, KX4O/P, vertical dipole, verticals VERTICAL DIPOLE AT LIGHTHOUSE May 23, 2018July 23, 2013 The asymmetrical hatted vertical dipole (AHVD) provides a quick setup HF antenna at Hatteras lighthouse. Categories Antennas Tags 20m, AHVD, ARLHS, battery, gel cell, Hatteras, KX3, kx4o, lighthouse, QRP, speaker stand, vertical dipole, verticals BUILD THIS VERTICAL PORTABLE HF ANTENNA June 14, 2018July 19, 2013 The Asymmetrical Hatted Vertical Dipole (AHVD) prototype is an easy to build, portable alternative to other freestanding vertical HF antennas such as the Buddipole. Categories Antennas Tags 10m, 12m, 15m, 17m, 20m, AHVD, asymmetrical, DX-Eng., kj4faj, kx4o, measurement, NEC, portable, resin support blocks, Simulation, speaker stand, vertical dipole ASY HAT VERTICAL DIPOLE April 8, 2020July 14, 2013 We re-introduce the theory and origins of Cebik’s (W4RNL) Asymmetrical Hatted Vertical Dipole (AHVD) antenna with the hope to facilitate a vertical polarization portable 20-10m aerial for portable operations. Categories Antennas Tags 10m, 12m, 15m, 17m, 20m, AHVD, asymmetrical, Bravo, dipole, DX-Eng., kx4o, NEC, Simulation, vertical dipole, verticals HELP SUPPORT THIS SITE TOPICS & KEYWORDS 2m 6m 10m 15m 20m 40m 43 foot 70cm 80m AHVD APRS Baluns battery BigIR copper Diamond dipole DX-Eng. EFHW Elecraft end-fed EZNEC Field Day Golden Packet hexbeam J-Pole Kenwood kj4faj KX3 kx4o measurement mobile NEC NMO NVIS packet PL259 QRP sdr Simulation SteppIR UHF vertical dipole verticals VHF RECENTLY POPULAR * Improving the Super-J * Build this Vertical Portable HF Antenna * Installing a Vertical Antenna Base with no Concrete * Airspy YouLoop LF/MF/HF Möbius Receive Antenna * Slim Jim vs. Traditional J-pole Antenna * The 43 foot vertical – The answer to ... * Small Loop HF Antenna * Mast Mountable J-Pole Antenna * Collinear 5/8 wave J-Pole vs. Collinear 1/2 wave ... * 40m Mastless NVIS Antenna © 2007-2024 John Scott Huggins and other authors and creators, All Rights Reserved.