Author: iz4wnp

VK9IR Mellish Reef. From DXNews.com

VK9IR Team will be active from Mellish Reef, OC-072, in October 2021., VK9IR Mellish Reef. From DXNews.com, ,

VK9HR Willis Island. From DXNews.com

VK9HR Team will be active from Willis Island, OC-007, in October 2021., VK9HR Willis Island. From DXNews.com, ,

CHESS CubeSat Constellation to Carry FUNcube Transponders
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CHESS CubeSat Constellation to Carry FUNcube Transponders

In 2020, a project between AMSAT-UK, AMSAT-NL, and Swiss universities got under way with the aim of equipping two Swiss satellites — for now under…

How Antenna Traps Work
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How Antenna Traps Work

How Antenna Traps Work Antenna 20m/40m Stealth Bazooka Flagpole Antenna November 25, 2014 No comments     No longer does the Amateur Radio Operator need…

2021 Propagation Summit Session Recordings Available
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2021 Propagation Summit Session Recordings Available

YouTube recordings and PDF files from the 2021 Propagation Summit hosted on January 23 by Contest University are available. More than 1,000 logged in for the sessions….

Make a mains filter for EMC & noise reduction
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Make a mains filter for EMC & noise reduction

This video shows how I have made a mains filter that is extremely effective in reducing and in some cases eliminating completely EMC from the…

La piattaforma ZYNQ-7000 AP SoC Intelligent Drives
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La piattaforma ZYNQ-7000 AP SoC Intelligent Drives

I kit di sviluppo forniti da Xilinx rappresentano soluzioni di progetto in grado di ridurre significativamente i tempi e di sviluppo e di migliorare la…

FG/F5HRY Guadeloupe. From DXNews.com

Herve, F5HRY is currently active as FG/F5HRY from Guadeloupe, IOTA NA – 102., FG/F5HRY Guadeloupe. From DXNews.com, ,

ZF2BJ Grand Cayman Island. From DXNews.com

Bruce, K0BJ will be active as ZF2BJ, from Grand Cayman Island, Cayman Islands, IOTA NA – 016, 20 February – 5 March 2021., ZF2BJ Grand…

QSO Today Virtual Ham Expo to Include Speaker Track on Amateur Radio Satellites
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QSO Today Virtual Ham Expo to Include Speaker Track on Amateur Radio Satellites

The QSO Today Virtual Ham Expo on March 13 – 14 will devote a speaker track to AMSAT and the world of amateur radio satellites. The Expo…

Ham Radio’s SuitSat Returns in Short Horror Film
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Ham Radio’s SuitSat Returns in Short Horror Film

SuitSat loses its innocence in a new video short sci-fi thriller Decommissioned. “Inspired by true events,” the video short resurrects the 2006 spacesuit/satellite that transmitted messages on 2…

The First Thing To Upgrade On Your Handheld Ham Radio
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The First Thing To Upgrade On Your Handheld Ham Radio

It’s true that the best thing to upgrade on your ham radio handheld is its antenna. However, there is something you should do before making…

Survey of Less-Expensive Vertical Antennas
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Survey of Less-Expensive Vertical Antennas

Oggie Mike, KB7HFS, asks for a recommendation for a new vertical antenna. He already has a radial field and a mount; his prior antenna was…

Motori Brushless DC
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Motori Brushless DC

Eccoci giunti a un nuovo appuntamento con la rubrica Firmware Reload. Oggetto di questo articolo sono una categoria di motori molto utilizzati in svariate applicazioni….

FG4KH Guadeloupe. From DXNews.com

Philippe, F1DUZ will be active again as FG4KH from Guadeloupe, IOTA NA-102, 16 March – 1 April 2021., FG4KH Guadeloupe. From DXNews.com, ,

Learning Morse Code, Straight Key or Paddles?
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Learning Morse Code, Straight Key or Paddles?

“The eternal question and a sure way to start trouble at your next Ham radio club! Is the straight key a better learning tool or…

Una soluzione ZigBee a singolo chip
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Una soluzione ZigBee a singolo chip

Questo articolo della rubrica Firmware Reload introduce la famiglia EM35x di Silicon Labs, ideata per realizzare soluzioni ZigBee a singolo chip. LA FAMIGLIA EM35X La…

Raspberry Pi Pico: la prima scheda a microcontrollore del lampone britannico
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Raspberry Pi Pico: la prima scheda a microcontrollore del lampone britannico

Raspberry Pi Pico: l’azienda del lampone più famoso nel mondo maker ha deciso di entrare nel mondo delle schede a microcontrollore all’inizio di questo 2021….

Icom IC-705 with the mAT-705 Portable Tuner
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Icom IC-705 with the mAT-705 Portable Tuner

“Today I operate the Icom IC-705 at my hunting lease as a portable radio with an End Fed Random Wire antenna from Nelson Antennas, and…

Termocamera professionale per principianti e professionisti
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Termocamera professionale per principianti e professionisti

PeakTech offre due nuove termocamere con funzionalità di foto termica e software di analisi, che creano anche report di prova generati automaticamente. Diamo quindi un’occhiata…

Voltage Monitor MAX8212
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Voltage Monitor MAX8212

Analizziamo un semplice e versatile IC per il monitoraggio della tensione di alimentazione in circuiti con architettura a microprocessore e non solo. L’integrato che andiamo…

Capture the MAGIC of Six Meters — eBook
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Capture the MAGIC of Six Meters — eBook

Have you ever wondered about the “Magic” of Six Meters? After all, you’ve probably pressed the six meter button on your rig and failed to…

Eastern Iowans Rely On Ham Radio When Severe Weather Strikes
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Eastern Iowans Rely On Ham Radio When Severe Weather Strikes

A derecho with winds of 80 to 100 MPH struck eastern Iowa last August, disrupting power and telecommunications for some 400,000 residents. But, as ARRL member…

David A. Duncan, K7DUN, Wins the January 2021 QST Cover Plaque Award
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David A. Duncan, K7DUN, Wins the January 2021 QST Cover Plaque Award

The winning article for the January 2021 QST Cover Plaque award is “CW-ELMER – An Advanced Morse Code Learning System,” by David A. Duncan, K7DUN. The QST Cover Plaque Award —…

Progettare un sensore touch capacitivo
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Progettare un sensore touch capacitivo

L’obiettivo di questo articolo è introdurre le tecniche che permettono di realizzare un’applicazione touch di tipo capacitivo, che risulti robusta e il più possibile insensibile…