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Antennas : 10M
Shortened dipole for 10 & 40m bands
- A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
VHF Collinear-Dipole
- 2 m. Band VHF Collinear with 2 Dipoles by sv1bsx
Trapped dipole for 80 and 40 m
- This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna.
An antenna for 7MHz local contacts
- This article describes the design of an antenna for local contacts on 7MHz, including a simple and efficient matching system that presents a 50 ohm load to the transceiver.
Coil loaded dipole for 80 meters
- Coil loading of an 80m Dipole for restricted space.
Here's a method that may allow you to fit that 80m dipole into your suburban backyard by VK3JEG
Balun for folded dipoles
- A 1:4 balun suitable for folded dipole antennas
Double Bazooka Dipole
- The Double Bazooka Dipole is a very efficient antenna which is very quiet,and does not
require the use of a balun
Building Coils
- Building coils for a portable dipole using
a novel method of winding coils with weedeater cord!
By K4MMG
Folded dipole antenna basics
- Basic information on the folded dipole antenna
Wire Dipole for 7.05 MHz
- Inverted Vee antenna for 40m with simulation data by DF9CY
VHF/UHF Wideband Portable Dipole
- A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU
HF Antenna Switch
- The purpose of this remote antenna switch was to be able to select between four different antenna combinations The unit was designed to work at RF power levels of around 100 watts by G8JNJ
Feeder Radiation
- Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes
Multiband Open Wire Antennas
- Why Multi-band Dipoles Need HEAVY Open Wire Line
by Tom, K1JJ
Open Wire Feed Line a second look
- Put up the longest dipole you can fit, feed it with open wire line, connect it to the balanced output of your tuner and—poof! Instant multiband antenna. Is life really that simple? By Paul Danzer, N1II
Log Periodic Dipole Antennas: TITANEX DLPD-15
- Review of the DLPD 15 is a log periodical dipole antenna with 15 elements made with state-of-the-art technology.
The Indoor spiral dipole
- An attic indoor antenna successfully implemented by N9RET by using two runs of 2-conductor wire
Analysis Of Antenna Mast Strength and Bending Stress
- Calculations for determining the wind loading stress on an antenna mast. Link to a spreadsheet for calculating the mast bending stress based on wind speed and antenna cross sectional area.
Traps for 40/80 m dipole
updated
- I6DVX article on hoembrewing traps, using vetrnonite instead of common coax cable.
Making the W3DZZ Video
- A video guide of how to make a high performance,low cost HF multiband antenna for the radio amateur and shortwave enthusiast.
Fantastic performance and low cost.
Video made by Mike (M0RRQ)
Multi Band Wire HF Antennas
- Notes on multi band HF antennas by G8JNJ
K7FFF Beacon
- FISTS Northwest K7FFF Beacon On the air at 28.287 MHz 2W to Dipole
KA0PSE Beacon
- On 28.219 Mhz it puts out a whopping 3.85 watts into an inverted V dipole at about 30 ft.
TakTenna
- Electrical half-wave dipole antenna
G4IRX/P portable operations
- A compact and portable setup with wire dipoles by G4IRX
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fan dipole
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