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Category: Ham Radio: Yagi
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| Description: Many ham radio operators use Yagi (or beam) antennas to maximize gain and improve front-to-back signal ratios (gain). The Yagi antenna (formally known as the Yagi-Uda antenna) uses a balun fed dipole antenna and some number of parasitic elements (passive radiators that are not connected to the feedline directly). Yagis are used in ham radio on HF, VHF, and UHF quite regularly and have even been used in low-band operations by hams on 80 meters. |
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2 and 6 Meter Coax Antennas
BUILD A 2 METER YAGI AND 6 METER YAGI ANTENNA USING THE VELOCITY FACTOR OF COAX TO DECREASE SIZE OF ANTENNA.
Reduce the size of your antennas by using these simple and effective ideas!
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| | Hits: 1137 | Rating: 0 | Votes: 0 | Added: 11-Jan-2006 04:14 GMT | |
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Bent element yagi for attics
Bent element yagi for attics. This is a horzontally polarized three Element Yagi. The bent Elements cause very little performance lose.
When you consider it is only 8ft. 5" wide and 7ft. 6" long and still has 6.2dbi gain and 20db front to back ratio.
And when you off center feed it you get a perfect 50 ohm match to coaxial cables.The SWR is less than 2to1 for 600khz.
Not bad for a Antenna that the neighbors don't even know exist.
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| | Hits: 1396 | Rating: 0 | Votes: 0 | Added: 10-Aug-2005 04:06 GMT | |
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Optimized Wide Band Antenna
Optimized Wide Band Antenna - NW3Z
Discussion on modelling and building optimized wide band antennas for HF.
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| | Hits: 362 | Rating: 0 | Votes: 0 | Added: 22-Aug-2005 00:10 GMT | |
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Simple 2m 2el portable yagi
A simple 2 meter 2 element portable yagi by K3MT. Need to get on the 2 meter ham radio band with a cheap yagi, check this out.
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| | Hits: 605 | Rating: 0 | Votes: 0 | Added: 17-Oct-2005 21:19 GMT | |
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Simple gain antennas for the beginner
Doug DeMaw, W1FB, article in QST that introduces several gain antennas for ham radio - includes an intro to the Yagi-Uda antenna.
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| | Hits: 372 | Rating: 0 | Votes: 0 | Added: 24-May-2006 01:34 GMT | |
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VE6FI - Contest station and antenna information
VE6FI is a contesting station located near Edmonton Alberta, Canada. It is located on 80 acres of land. Most of the antennas are homebrew and would include mono banders on 10, 15, 20, and 40 meters. An 'In Line' four vertical phased array is used on 80 meters.
There are four home brew amplifiers described including 4-1000A, pair of 3-500Z and a pair of 8877's
We are in major contests and have over 100,000 contacts in the log.
The station is owned by Evan, Ve6fi and operated and maintained by Denis Ve6aq. Denis has remoted the station to his own QTH some 20 kms away.
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| | Hits: 349 | Rating: 0 | Votes: 0 | Added: 26-Nov-2005 04:32 GMT | |
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WB2HOL Tape Measure Beam
The WB2HOL Tape Measure Beam is a popular RDF/foxhunting tool that is inexpensive and easy to make.
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| | Hits: 178 | Rating: 8 | Votes: 1 | Added: 9-Apr-2007 21:53 GMT | |
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