half wave

65 links about half wave on dxzone.com

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Antennas : 15M

21 mhz half wave GP Antenna - 21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade
[Hits: 1304 | Votes: 1 | Rate: 4.00]

Antennas : 160M

K2YWE's Compact 160m Lazy-U Antenna - This compact 160m antenna is a half-wave dipole with a vertical section. It requires no radials and has worked well for me.
[Hits: 13488 | Votes: 11 | Rate: 6.55]
The 160M Homebrew Vertical - The 160M "No Excuses" Homebrew Vertical is a 27 ft. vertical antenna, made from three 10 ft. PVC sections bolted together, and half wavelength of antenna wire helically wound around the PVC sections by K6MM
[Hits: 5642 | Votes: 14 | Rate: 6.51]

Antennas : 30M

Attic 30 m dipole antenna - A full size half-wave 30m dipole installed in an attic
[Hits: 4842 | Votes: 3 | Rate: 6.33]

Antennas : 40M

40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
[Hits: 8450 | Votes: 6 | Rate: 3.33]

Antennas : 4M

Vertical half-wave aerials for 4m - Practical designs pictures and alternative design of antennas for 70 Mhz by Ross Wilkinson G0WJR
[Hits: 4607 | Votes: 4 | Rate: 4.75]

Antennas : CobWebb

CobWebb multiband folded dipole - It is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10M & 20M, the antenna is also resonant on 6M
[Hits: 5212 | Votes: 0 | Rate: 0.00]

Antennas : Collinear

Half wave collinear copper jpole - Two meters collinear j-pole antennas made with riggid copper pipe
[Hits: 4781 | Votes: 4 | Rate: 2.50]

Antennas : Dipole

The Monoband HF dipole antenna - If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire
[Hits: 2873 | Votes: 4 | Rate: 8.75]
Shortened Center-Fed Half-Wave Dipole - Design your owm HF shiortened dipole
[Hits: 2417 | Votes: 5 | Rate: 9.80]

Antennas : End-Fed

Portable QRP HF Antennas - Notes on the end-fed half-wave antenna, single-band stub-fed EFHW and a multiband EFHW antenna
[Hits: 4335 | Votes: 1 | Rate: 7.00]
End-Fed Halfwave Antenna ^pop - The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
[Hits: 18287 | Votes: 14 | Rate: 7.85]
How to make an end-fed antenna work ^pop - Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
[Hits: 26989 | Votes: 12 | Rate: 6.66]
End fed halfwave antenna and matching unit - One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx
[Hits: 7433 | Votes: 3 | Rate: 6.33]
N2CX on End-Fed Halfwave Antennas - This original N2CX article was first published in the 72 newsletter back in 1997 or 1998.
[Hits: 2902 | Votes: 2 | Rate: 10.00]
"Halfer" End-Fed Halfwave Antenna ^pop - End-Fed Half-Wave Antenna for the 7 or 10 MHZ amateur bands intended to provide a very simple to erect yet effective portable QRP antenna.
[Hits: 16476 | Votes: 7 | Rate: 7.15]

Antennas : J-Pole

Super J-Pole for 435MHz - The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf
[Hits: 2392 | Votes: 4 | Rate: 4.75]

Antennas : Magnetic Loop

Magnetic Loop Antenna - Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a half-wavelength dipole if carefully built.
[Hits: 1153 | Votes: 1 | Rate: 10.00]

Antennas : Portable

An End Fed Half Wave Antenna - This end fed type of antenna was marketted in the UK and is a useful system for the portable set-up. Being a half wave, no radials or counterpose wires are needed.
[Hits: 3613 | Votes: 0 | Rate: 0.00]

Antennas : Sloper

Optimizing half-wave sloper arrays for 160 meters - This article presents a 160-meter variation of this family of antennas and, more importantly, a discussion of the details of how to get such a beast working really well.
[Hits: 3559 | Votes: 2 | Rate: 7.00]

Antennas : Theory

K-FACTOR Table & Chart - Determine the K-Factor used as a multiplier when constructing half-wave antennas.
[Hits: 2230 | Votes: 30 | Rate: 3.83]

Antennas : Vertical

6m Half wave vertical - This antenna is very useful for receiving or scanning purposes, but you can use it for transmitting, too. It is 2,94m long and has a pi-configuration (Collins-Filter) for the matching.
[Hits: 3271 | Votes: 4 | Rate: 7.75]

Antennas : Windom

The FD4 (FD3) Windom Antenna ^pop - The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end
[Hits: 38707 | Votes: 60 | Rate: 5.76]

Antennas : Wire

How create simple dipoles - How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas
[Hits: 3002 | Votes: 4 | Rate: 6.50]

Technical Reference : Software Defined Radio

Wavefront CompactPCI (CPCI) RF converter - The Wavefront CompactPCI (CPCI) RF converter provides a complete half-duplex radio front-end in an industry-standard 6U format. The architecture consists of dedicated receive and transmit channels that share a common RF interface.
[Hits: 688 | Votes: 0 | Rate: 0.00]

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