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Category: Ham Radio: Vertical
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| Description: Ham radio operators and broadcasting engineers often use vertical antennas for several reasons. On HF, the low take-off angle makes vertical ham radio antennas ideal for DX. Arrays of vertical antennas can improve both receiving and transmitting capabilities. |
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KB9CRY Shunt fed tower
Shunt fed tower project for 160 meters as detailed by KB9CRY. Based on K1ZM's design found in his "DXing on the Edge" book. He described the setup in this towertalk thread:
http://lists.contesting.com/pipermail/towertalk/2005-December/080022.html
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| | Hits: 428 | Rating: 0 | Votes: 0 | Added: 31-Dec-2005 05:24 GMT | |
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Lowband Antenna that is Almost Free - shunt feed your tower
The Shunt-fed Tower, An Effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M. This article describes the process of shunt feeding your ham radio tower for low bands.
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| | Hits: 964 | Rating: 7 | Votes: 1 | Added: 3-Jun-2006 03:07 GMT | |
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Minimast portable HF antenna using a collaspable fishing pole
N0LX has plans for a portable HF antenna that collaspes down to a very small size as it is designed around a fiberglass fishing pole with a PVC frame for a base. The antenna is a vertical halfwave that is 14 feet tall.
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| | Hits: 301 | Rating: 0 | Votes: 0 | Added: 23-Jul-2006 13:37 GMT | |
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N9ADG - HF Amplifier conversions and more
Conversion of AL-1200 amplifier to gs-35b tube; conversion of LK-2000 amp to GS-35b; using a blimp for 160m, other stuff!
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| | Hits: 211 | Rating: 0 | Votes: 0 | Added: 15-Jun-2007 06:38 GMT | |
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Petlowany Three-Band Burner Antenna
Petlowany Three-Band Burner Antenna
The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can "homebrew" your own.
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| | Hits: 232 | Rating: 0 | Votes: 0 | Added: 5-Aug-2005 17:36 GMT | |
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Phased Array Adjustment for Ham Radio
A lumped-parameter tee-network model of the coupling between radiating elements in a phased array in order to provide a physical and intuitive understanding of phased array operation and adjustment interactions. KM5KG
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| | Hits: 341 | Rating: 0 | Votes: 0 | Added: 23-Aug-2005 20:19 GMT | |
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Self Supporting Loaded 80 Meter Vertical Antenna Project
W9OY has a thoroughly documented set of plans to build a self-supporting 80 meter vertical HF antenna. It includes detailed photos of the 5ft 4x4 in the ground for the hinged base, the mast construction which includes 4 sections of aluminum tubing and a fiberglass pole, loading coil construction, parts list with prices and sources, radial wires, multiband considerations, and more.
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| | Hits: 552 | Rating: 8 | Votes: 1 | Added: 10-Aug-2006 21:51 GMT | |
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