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198 links

Speaker Wire Delta Loop Antenna for 20M - WB3GCK
The antenna I built was inspired by a portable delta loop designed by Doug DeMaw ...

[ Hits: 128 | Votes: 0 | Rating: 0 ]

30m Half -Size Rotary Dipole - G3YEU
A rotary dipole antenna for 30 meters band Each arm is about 12 5 ft ...

[ Hits: 200 | Votes: 0 | Rating: 0 ]

Extended Double Zepp NVIS Antenna Calculator - WestMountainRadio
Extended Double Zepp measurements for all ham bands and online calculator The antenna is constructed ...

[ Hits: 125 | Votes: 3 | Rating: 7 ]
Yagi Uda Antenna Online Calculator - changpuak ^updated
A basic YAGI UDA online antenna calculator accept as input frequency number of elements diameter ...

[ Hits: 115 | Votes: 4 | Rating: 6.25 ]

The Reversible BOGs - HC1PF
The author struggled with receiving antennas on his property After a standard Beverage on Ground ...

[ Hits: 23 | Votes: 0 | Rating: 0 ]
An Overview of Beverage Receiving Antennas - N0AX
This article explores Beverage antennas a type used for low frequency radio reception Despite the ...

[ Hits: 19 | Votes: 0 | Rating: 0 ]

Bent-end dipole antennas - kk4obi
Discussion about laterally bent end dipoles Bent by percentage of length and fine tuned by ...

[ Hits: 123 | Votes: 0 | Rating: 0 ]

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: 143 | Votes: 1 | Rating: 4 ]
HF EFHW Antenna Antenna Tuner - ZL2CTM
Schemaric diagram for a 80m 40m 30m 20m EFHW Antenna Antenna Tuner The tuner has ...

[ Hits: 120 | 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: 58 | Votes: 1 | Rating: 10 ]

Some secrets of Common Mode Chokes revealed - pa0nhc
This is a small collection of K9YC info and my experiences Problems by feed lines ...

[ Hits: 175 | Votes: 1 | Rating: 10 ]

HB9CV Online Antenna Calculator - changpuak
Online HB9CV antenna calculator accept as input the desired resonating frequency and provides dimensions for ...

[ Hits: 220 | Votes: 4 | Rating: 10 ]

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 ]

Yaesu ATAS-120A Portable Tripod: Enhancing Efficiency - N6CTA
In this post by N6CTA discover the conversion of the Yaesu ATAS 120A screwdriver antenna ...

[ Hits: 88 | Votes: 0 | Rating: 0 ]

QRP Z Match Antenna Tuner Project - ON5IA
A Home made antenna tuner for QRP transceivers This small tuner is the ideal for ...

[ Hits: 110 | Votes: 1 | Rating: 10 ]

Modified Ground Plane Antenna Adds Second Band - Dick Reid, KK4OBI
This article explains the trick of how to shorten and lengthen pairs of radials to ...

[ Hits: 53 | Votes: 0 | Rating: 0 ]

Exploring the Spectrum From HF to UHF Frequencies - ARCAD
During radio s early days high frequencies were under 30 MHz due to technical limitations ...

[ Hits: 78 | Votes: 0 | Rating: 0 ]