Anno: 2018

II1ITR per ricordare Nobile
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II1ITR per ricordare Nobile

La tenda rossa è il simbolo della tragedia occorsa al dirigibile Italia, che al comando del Generale Nobile il 25 Maggio 1928 alle ore 10,30 impattò sul…

Resistori PSR per l’automotive da ROHM Semiconductor
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Resistori PSR per l’automotive da ROHM Semiconductor

ROHM Semiconductor ha ampliato la sua serie di PSR con resistori shunt ultra-low ohmic per applicazioni automobilistiche e industriali. I design compatti contribuiscono a migliorare…

CPU Design: introduzione
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CPU Design: introduzione

Molti di voi probabilmente si saranno chiesti come funziona un microprocessore. Alcuni probabilmente si saranno anche dati una risposta, frugando su internet, o magari su…

ARRL Foundation Announces Joel R. Miller (W7PDX) and Martha C. Miller STEM Scholarship
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ARRL Foundation Announces Joel R. Miller (W7PDX) and Martha C. Miller STEM Scholarship

The ARRL Foundation has announced a new scholarship, the Joel R. Miller (W7PDX) and Martha C. Miller STEM Scholarship. Endowed through the generosity of Joel R. Miller,…

Sistema di Accesso con QRcode per Raspberry Pi
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Sistema di Accesso con QRcode per Raspberry Pi

Le capacità di elaborazione dati e le librerie a disposizione per Raspberry Pi sono molto ampie e permettono di prototipare un’ampia gamma di progetti. In…

I sistemi ADAS riducono gli incidenti stradali
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I sistemi ADAS riducono gli incidenti stradali

I sistemi di assistenza alla guida (ADAS – Advanced Driver Assistance System) forniscono un livello di protezione automatico, migliorando l’esperienza del conducente e offrendo al contempo…

9XSDA Rwanda. From DXNews.com
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9XSDA Rwanda. From DXNews.com

Christian, M0UPL, informs dxnews.com, that he will be active as 9XSDA from Rwanda, 11 – 18 February 2018., 9XSDA Rwanda. From DXNews.com, ,

3D2GE Viti Levu Island. From DXNews.com
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3D2GE Viti Levu Island. From DXNews.com

Gerhard, OE3GEA will be active as 3D2GE, from Viti Levu Island, IOTA OC – 016, Fiji, until 9 February 2018., 3D2GE Viti Levu Island. From…

New Antennas Will Take CubeSats to Mars and Beyond
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New Antennas Will Take CubeSats to Mars and Beyond

By packing big antennas into tiny satellites, JPL engineers are making space science cheap By Nacer E. Chahat One morning in November 2014, Kamal Oudrhiri, a…

Jim Heath W6LG Shares a Video of One of the Largest Ham Radio Antennas
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Jim Heath W6LG Shares a Video of One of the Largest Ham Radio Antennas

Sam, R7AB has one of the largest antenna systems for HF in the world. Here is a video fly-by showing just part of that site….

SDRPlay RSP-1A   VS   Airspy HF+
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SDRPlay RSP-1A VS Airspy HF+

“Comparing reception of two popular SDR Receivers using the same antenna at 5 PM local time. Short wave and medium wave frequencies. Using the same…

Un DAC in corrente bidirezionale da Analog Devices
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Un DAC in corrente bidirezionale da Analog Devices

Analog Devices ha annunciato l’LTC7106 Power by Linear, un DAC in corrente bidirezionale di precisione,controllato attraverso PMBus/I2C, progettato per regolare la tensione in uscita di  qualsiasi regolatore…

Il calcolo dei polinomi
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Il calcolo dei polinomi

Sono presentati diversi  metodi  per il calcolo di polinomi, le costanti utilizzate sono lette direttamente da flash oppure da ram inizializzata. Gli esempi ed i disassemblati di questo articolo si riferiscono a cpu con…

T88RF Palau. From DXNews.com
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T88RF Palau. From DXNews.com

JJ2RCJ will be again active from Palau, IOTA OC – 009, 7 – 10 February 2018, as T88RF., T88RF Palau. From DXNews.com, ,

D-Star ONE Phoenix, First D-Star Communication Spacecraft, Launched
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D-Star ONE Phoenix, First D-Star Communication Spacecraft, Launched

A Soyuz rocket launched D-Star ONE Phoenix and 10 other satellites into orbit on February 1 from Vostochny Cosmodrome in Russia. Developed by German Orbital Systems in Berlin in…

Riduzione del rumore in applicazioni PWM
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Riduzione del rumore in applicazioni PWM

Le applicazioni di controllo motore, di conversione e trasformazione dell’energia, di audio e video encoding e decoding, sfruttano oggi sempre più le periferiche di pulse width…

3Y0Z Bouvet Island DXpedition Aborted over Safety Concerns
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3Y0Z Bouvet Island DXpedition Aborted over Safety Concerns

In a huge disappointment for the DX community and the members of the 3Y0Z Bouvet Island team, the DXpedition’s leaders announced at 2000 UTC today…

3Y0Z – ABORTED –  Bouvet Island DXpedition
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3Y0Z – ABORTED – Bouvet Island DXpedition

2000 UTC 3 February 2018 During the last 72 hours we continued to experience the high winds, low clouds, fog, and rough seas that have…

Eric from Universal Radio discusses the Icom IC-R8600 Receiver
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Eric from Universal Radio discusses the Icom IC-R8600 Receiver

Eric, KC8XJ of Universal Radio discusses some fine points of the Icom IC-R8600 receiver. The IC-R8600 is a very wide band feature packed self contained…

POLAR CROWN CORONAL HOLE: A large hole in the sun’s atmosphere has formed around the sun’s north pole
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POLAR CROWN CORONAL HOLE: A large hole in the sun’s atmosphere has formed around the sun’s north pole

POLAR CROWN CORONAL HOLE: A large hole in the sun’s atmosphere has formed around the sun’s north pole. This is called a “polar crown coronal…

Amateur Radio Newsline Report 2101 for Friday, February 2, 2018
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Amateur Radio Newsline Report 2101 for Friday, February 2, 2018

– DELAYS PLAGUE HAMVENTION EXPO CENTER – ARIZONA’S QUARTZFEST BREAKS RECORD – NEW SATELLITE READY FOR ACTION – HUMANITARIAN AWARD NAMED FOR RECENT SILENT KEY – NONSTOP RADIO, NONSTOP COFFEE…

Z60A Fielding Three Stations to Handle Huge Pileups for New DXCC #1
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Z60A Fielding Three Stations to Handle Huge Pileups for New DXCC #1

Three Z60A stations are up and running with DL3DXX, DL5CW, DJ5IW, IK0FVC, and VE7NY handling operating duties. The special activation to mark the addition of…

Volunteers Invited to Assist in 2018 Boston Marathon
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Volunteers Invited to Assist in 2018 Boston Marathon

Opportunities for Amateur Radio and non-amateur volunteers are available for the 122nd running of the Boston Marathon on Monday, April 16, sponsored by the Boston…

ARRL Board Meeting Minutes Posted
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ARRL Board Meeting Minutes Posted

The minutes of the 2018 ARRL Annual Board of Directors Meeting held January 19-20, 2018, are now available on the ARRL website.  Fonte originale con…

Wireless Institute of Australia Seeks Amateur Radio Power Increase
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Wireless Institute of Australia Seeks Amateur Radio Power Increase

The Wireless Institute of Australia (WIA) is seeking a power increase for radio amateurs. WIA is pushing telecommunications regulator the Australian Communications and Media Authority (ACMA)…