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All Band NVIS Antenna Designs


As user of MF/HF frequencies, a dedicated a Near Vertical Incident Skywave NVIS is a requirement and not an option in my opinion. In addition a broadband NVIS antenna
post 04 Dec 2024
All Band NVIS Antenna Designs

Antenna Multibands Links →

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Windom Antenna
The peculiar aspect of the I7SWX windom is the balun,wound on a simple ferrite rod,instead of the commonly used toroid

Morgain per i 40 e gli 80 metri
This antenna has in its main characteristic, the fact that with only 20 mtof space occupied it works the 80 meters

The Homebrew Buddipole 17m/15m
I made the Buddistick first, then later made the Buddipole. Both are easy to make and work well

Doublet Antenna
The ATU design gives a reasonable 'Q' factor so you will have to tune it regularly. Eurotherm PID controllers and a stepper-motor can make a good auto-ATU

The Dipole antenna
The DIPOLE antenna, here some reference data, pointers and ideas that may help you


Psion ham software

PSION Greyline Clock PSION Greyline Clock v. 1.0 is a UTC/Local clock showing sunlight/darkness area on the world map

Radioassistance

Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica

SunCalc

SunCalc SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic

    Antennas Type

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Arduino CW Keyer

Arduino CW Keyer Questo progetto, dal nome yaacwk, sta per Yet Another Arduino CW Keyer

cw key to rig switch-box

CW Key-to-Rig Switch Box Project to switch multiple cw keys between several rig

Rf Directional Power Meter

Rf Directional Power Meter A wide dynamic range power meter using a directional coupler, AD8307 Log Amplifier and arduino microcontroller

Wireless cw iambic memory keyer

Wireless cw iambic memory keyer- Cross country wireless cw iambic memory keyer

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Helix 2.425 GHz band

Helix 2.425 GHz band Broad bandwidth in the 2.425GHz band>

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Bazooka Antenna Calculator

Bazooka Antenna Calculator Programma caculator for bazooka antenna,with measurements already calculated for frequeze used by radio amateurs

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