antenna length

164 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 ]

80m Vertical - dj0ip
This is a FULL SIZE quarter wavelength vertical made on a 18m Spiderbeam fiberglass telescoping ...

[ Hits: 139 | Votes: 0 | Rating: 0 ]

Corned Fed Delta Loop - LA8OKA
Author found a ratio between the lengths of the sides of the Delta Loop that ...

[ Hits: 169 | Votes: 0 | Rating: 0 ]
Antenna too short! Inductivity matching with coil match. - dl7ahw
Wire antenna calculator with inductivity matching coil where length shorter lambda/4

[ Hits: 132 | 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 ]

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: 142 | 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 ]

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 ]

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 ]

SWR analysis of a G5RV antenna - VE2XIP
G5RV SWR Analysis of a Radiowavz 10m 80m full length antenna made using a RigExpert ...

[ Hits: 108 | Votes: 0 | Rating: 0 ]

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 ]

Homebrew an OCF Off-Center Fed Dipole Antenna - W5ODJ
This type of antenna is a popular antenna design as the performance is very good ...

[ Hits: 198 | Votes: 3 | Rating: 6.67 ]

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 ]

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 ]

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 ]

Random Wire Antenna Lengths - AB3AP
When on the trail at Field Day or whenever a good antenna is unavailable a ...

[ Hits: 186 | Votes: 1 | Rating: 2 ]