Anno: 2019

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Es’hail-2 / QO-100 Teleport Inauguration Day February 14

AMSAT-DL report: This will also be the occasion to officially put the two amateur radio transponders of Qatar OSCAR-100, the first geostationary P4-A satellite from Qatar,…

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multiFLEX Demo at Orlando Hamcation

Equipment miltiFlex – FlexRadio January 31, 2019 in: Equipment No comments Maestro and PC at the same time Have your cake and eat it too….

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Introducing the new ICOM 9700

ICOM 9700 Built with the VHF/UHF weak signal operator in mind, the IC-9700 is an RF direct sampling receiver for 2m and 70cm. The IF…

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Una tecnica di pin sharing

La tecnica del pin sharing per interfaccia I2C analizzata nei dispositivi C8051F30x. I C8051F30x sono dispositivi dotati di periferica analogica per la conversione A/D a 8 bit. Le…

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NEW – DMR On The 4m Band – Entel DX415s

Coming soon is a DMR handheld radio which could be used on the 4m band. Covering 66-88Mhz analogue and digital. I’ve not seen a 4m…

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Review of BTECH UV-25X2 Mobile 2m/70cm FM Radio

what Makes the UV-25X2 Unique: Dual Synchronize Display Mode, Mic Audio Gain Settings, Expanded Frequency Range (up to 520MHz), In depth user’s guide, Auto Power…

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What’s Inside The Retevis RT97 Portable Repeater?!

Retevis RT97 Portable Mobile Analog Mode Repeater  Features: 1, Customizable: The TX and RX frequencies can be customized between UHF (400-470MHZ)  2, Output power: 10W.  3,…

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The March Edition of Digital QST is Now Available!

The March issue of Digital QST is now available for viewing on your desktop or laptop. Click here to view the issue. It is also available for reading on…

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Bootloader per microcontrollori AVR

Uno degli aspetti più interessanti dei moderni microcontrollori è certamente la riprogrammabilità. E’ tuttavia forse una della procedure più ‘noiose’ che inevitabilmente si devono sopportare. La…

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Yaesu FTdx101D Price Revealed

Martin Lynch have revealed the UK price of the new Yaesu FTdx101D… So at £3149.95 it is less than most people expected, still a lot…

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Yaesu FT-DX101D ! Watch the whole video as we ask Yaesu the questions you want answered!

Yaesu FT-DX101D   Recent Posts Yaesu FT-DX101D ! Watch the whole video as we ask Yaesu the questions you want answered! February 08, 2019 No…

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ISS Packet Radio System is Back in Operation with New Equipment

The Amateur Radio on the International Space Station (ARISS) packet system is back on the air with new equipment. The replacement gear arrived last November…

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HRN401 – Elmercast 1: From the Ground Up!

Ward Silver N0AX joins Jim Aspinwall NO1PC and David W0DHG for the first of the ElmerCast Series. We talk about GROUNDING! Antenna Build the Pennyloop…

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LCD driver a bordo di microcontrollori

Una panoramica di alcune interessanti soluzioni presentate dalle principali case produttrici oggi sul mercato, preceduta da una breve introduzione sul principio di funzionamento e sulle modalità di controllo di uno schermo LCD. I…

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Comprendere le basi della conversione CC-CC

I moduli dei convertitori CC-CC sono comunemente usati nell’elettronica di consumo. Come funzionano e quali sono i criteri più importanti da considerare per sceglierne uno?…

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A Small Pocket of Fast Wind: Solar Storm Shortie 02-07-2019

“Although the Sun has quieted down this week , we have another chance for a solar storm coming. A pocket of fast solar wind will…

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Reshaping ARRL Objectives, Refocusing ARRL HQ Structure is New CEO’s Goal

A plan by ARRL CEO Howard Michel, WB2ITX, to reshape and reorganize the management structure at ARRL Headquarters will go into effect on Monday, February…

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“FT8” is the topic of the current (January 31) episode of the “ARRL The Doctor is In” podcast

 Steve Ford, WB8IMY, provides an introduction to FT8, one of the most popular Amateur Radio digital modes ever created. “FT8” is the topic of…

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Algoritmi di hash e loro utilizzo nelle criptovalute

Nel mondo delle criptovalute, gli algoritmi di hash svolgono un ruolo fondamentale per consentire la validazione delle transazioni inserite nella blockchain. Anche se dietro a…

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Modulo di biosensore integrato per PPG ed ECG per dispositivi mobili

I progettisti hanno ora un modo più semplice per effettuare misurazioni di fotopletismogramma (PPG) ed elettrocardiogramma (ECG) per il monitoraggio della salute da un dispositivo…

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Orlando HamCation® this Weekend is ARRL Southeastern Division Convention

Orlando HamCation® at the Central Florida Fairgrounds Friday through Sunday, February 8 – 10 is the 2019 ARRL Southeastern Division Convention. One of the largest annual Amateur…

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40M UltraLight QRP magnetic loop antenna + TEST [ XIEGU X5105 ]

“In this video I want to show you the 40M band UltraLight Magnetic Loop Antenna, how to setup it and testing in the real QRP…

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Earth’s Magnetic North Pole Shifts toward Siberia

National Centers for Environmental Information (NCEI) scientists have updated the world magnetic model (WMM) mid-cycle, as Earth’s northern magnetic pole has begun shifting quickly away…

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Tecniche di riduzione del rumore

In questo articolo saranno discussi e analizzati i principali fattori e i parametri critici che interessano la progettazione e lo sviluppo di una scheda elettronica per segnali high-speed, con l’obiettivo di fornire dei criteri pratici per contenere e…

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Gli aerei senza pilota

È noto che gran parte del progresso scientifico e tecnologico in ambito civile è dovuto alla ricerca e sviluppo nel settore militare. Ingenti risorse economiche…