wave form

120 links

4m Tall Vertical Dipole for 20m - TF3LJ
Constructed in May 2008 this innovative 4m tall electrically full size halfwave vertical dipole tunable ...

[ Hits: 95 | Votes: 0 | Rating: 0 ]

Vertical bazooka antenna for the 40m - ON8IM
A quarter wave vertical omni directional antenna for 7 MHz Formulas for dimensions in feet ...

[ Hits: 135 | Votes: 7 | Rating: 6.85 ]

TEFV Terminated End Fed Vee Antenna - VU3DXR
The Terminated End Fed Vee Antenna TEFV is a travelling wave antenna with constant current ...

[ Hits: 188 | Votes: 2 | Rating: 6.5 ]
Delta Loop vs End Fed Half Wave on 20m - PH0NO
Intrigued by a German OM positive experience with a 20m delta loop the author replicated ...

[ Hits: 123 | Votes: 0 | Rating: 0 ]
G4WIF End Fed Half Wave Antenna - G4WIF ^updated
Opting for a visually appealing inverted L configuration G4WIF anchors the End Fed Half Wave ...

[ Hits: 120 | Votes: 1 | Rating: 9 ]
Multi-Band End-Fed Antenna Design for Limited Space - PA3DWC
This document details the construction of a multi band end fed antenna suitable for situations ...

[ Hits: 76 | Votes: 0 | Rating: 0 ]

1:49 unun for end fed half wave antennas - vu3dxr
1 49 UNUN using two stacked FT240 43 cores for end fed halfwave antenna To ...

[ Hits: 399 | Votes: 10 | Rating: 8.1 ]
End-Fed Half-Wave Antenna for 20m 40m 80m - VA3KOT
How to Design and Build a Field Expedient End Fed Half Wave Antenna for 20m ...

[ Hits: 142 | Votes: 1 | Rating: 4 ]
Comparing Mobile whip versus EF HW Vertical - PH0NO
PH0NO conducted field tests comparing a mobile antenna DX UHV to an end fed half ...

[ Hits: 81 | Votes: 0 | Rating: 0 ]
Homebrew EFHW Antenna for Low Power HF (40/20/15/10m) - vk1nam ^new
This describes a homebrew End Fed Half Wave EFHW antenna for low power SOTA Parks ...

[ Hits: 28 | Votes: 0 | Rating: 0 ]

The Quarter-wave stub - LA8OKA
The Quarter wave stub can be used for many purposes If it is left with ...

[ Hits: 136 | Votes: 1 | Rating: 8 ]

What is Horn Antenna - frambos
Horn Antenna The energy of the beam when slowly transform into radiation the losses are ...

[ Hits: 74 | Votes: 0 | Rating: 0 ]

Automatic Magnetic Antenna Tuner - TF3LJ
A Magnetic Loop Antenna is a resonant circuit employing a large inductor and adjustable capacitor ...

[ Hits: 61 | Votes: 0 | Rating: 0 ]

A Compact and Stealthy Field Portable Antenna - VA3KOT
In the quest for an ideal field portable antenna the author recounts experiments involving various ...

[ Hits: 154 | Votes: 1 | Rating: 1 ]

Active 3-30 MHz Hula-Loop Antenna for Shortwave - Charles Wenzel
This active antenna for the shortwave band provides surprising performance even indoors As the name ...

[ Hits: 159 | Votes: 1 | Rating: 10 ]

Vertical Antenna Wavelength Vs Performance - VE7SAR
This article on basic antenna theory explains why is a 5 8 wavelength vertical antenna ...

[ Hits: 140 | Votes: 0 | Rating: 0 ]

Performance of 49:1 Ferrite Core Transformers - AF7NX
There are quite a few recipes for building a suitable transformer for an end fed ...

[ Hits: 151 | Votes: 4 | Rating: 7 ]

Ionospheric Propagation of Radio Waves - VE2DPE
Ionospheric Propagation of Radio Waves in Action How Do Ionized Layers Form to Enable Ionospheric ...

[ Hits: 106 | Votes: 0 | Rating: 0 ]

FT 1000MP MK V and Keyclicks - W8JI
YaesuFT1000MK V stands out with improved close spaced SSB transmit performance reversing a trend seen ...

[ Hits: 32 | Votes: 0 | Rating: 0 ]

Skywave Linux - Philip Collier AB9IL
Linux for shortwave and amateur radio monitoring Supports popular SDR hardware and online streaming from ...

[ Hits: 290 | Votes: 0 | Rating: 0 ]