Il protocollo I2C viene largamente utilizzato per differenti periferiche embedded. Il vero problema è che non è sempre facile effettuare debug: il protocollo I2C non
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Mese: Marzo 2020
Smart contract su blockchain Ethereum, cosa sono e come funzionano
L’idea degli smart contract nasce durante la fine degli anni 90 e consiste nella digitalizzazione di contratti veri e propri che vengono conservati in un
Read moreVideo KL7RRC/P Sledge Island. From DXNews.com
Video of KL7RRC/P IOTA Expedition to Sledge Island, IOTA NA – 210, Alaska., Video KL7RRC/P Sledge Island. From DXNews.com, ,
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COVID-19 Affects Space Station Crew Transition
International Space Station (ISS) Expedition 62 crew is readying its Soyuz MS-15 vehicle for an April 17 departure back to Earth. Expedition 62 members are NASA Flight
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Understanding HF Propagation
“Looks at how HF radio signals are propagated via the ionosphere. Includes a description of NVIS propagation, and looks at VOACAP-based propagation prediction tools. This
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A Simple High-Frequency Communications Receiver
See What QST Has to Offer! QST is the monthly membership journal of ARRL. Each issue is your source for equipment reviews, technical tips, projects, news
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FCC Grants Temporary Emergency Authority to WISPs Operating in 5.8 GHz Band
The FCC has granted temporary permission to wireless internet service providers (WISPs) in rural portions of 29 states and the US Virgin Islands to operate in the
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NZ hams allowed “ZM” prefix during Covid-19
At the suggestion of Paul, ZL4TT, we applied to Radio Spectrum Management for, and have been granted, approval to treat the COVID-19 lockdown period as
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LT Filter Design
LT1567 e LT1568 sono due chip di Analog Devices che consentono di realizzare, con l’aggiunta di pochi componenti esterni, filtri attivi RC low-noise e high-frequency di diverso ordine, sia passa-basso sia passa-banda, con
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49:1 End Fed Half Wave Multi-Band HF Antenna 80m – 10m
News Prepping for Ham Radio Operators & Beginners March 29, 2020 No comments Read more Monitoring Emergency Radio Frequencies and Scanning March 29, 2020 No
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Prepping for Ham Radio Operators & Beginners
Antenna 49:1 End Fed Half Wave Multi-Band HF Antenna 80m – 10m March 29, 2020 No comments Read more HF Antenna In An HOA, Chameleon
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Monitoring Emergency Radio Frequencies and Scanning
“A question that keeps coming up is, “what frequencies should I monitor during an emergency?” We’re going to cover those frequencies today!” Review Requirements for
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USA conducts first all-online ham radio exam
The first remote all-online amateur radio Technician license exam was carried out in the United States on March 26, 2020 Marcel Stieber @AI6MS Tweeted: Yesterday
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La sezione aurea affascina tutti
Da sempre l’uomo ha utilizzato la sezione aurea nell’arte, in letteratura, in architettura, nel design e persino nella musica. La legge dei numeri e l’armonia
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Requirements for Technician Reference Station Home/Mobile Rig
News Coronavirus: Initiative to popularise Amateur Radio and Satellite activities March 28, 2020 No comments The West India Zone Regional Coordinator for AMSAT-INDIA, Rajesh Vagadia VU2EXP,
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Coronavirus: Initiative to popularise Amateur Radio and Satellite activities
The West India Zone Regional Coordinator for AMSAT-INDIA, Rajesh Vagadia VU2EXP, is offering students and others the opportunity to learn about amateur radio and satellites during
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Cerificati digitali: a cosa servono
Un certificato digitale è un documento elettronico che attesta l’associazione univoca tra una chiave pubblica e l’identità di un soggetto (una persona, una società, un
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ZeroPhone: lo smartphone basato su Raspberry Pi open source
Raspberry Pi ha senza dubbio migliaia di applicazioni e può diventare interessante per realizzare un’infinità di progetti. Si è soliti pensarlo a un semplice computer
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Protocollo a conoscenza zero: come migliorare la privacy nella blockchain
Il protocollo a conoscenza zero o dimostrazione a conoscenza zero è una tecnica largamente utilizzata nel mondo della crittografia. Tra le sue applicazioni più interessanti
Read moreV6TOPG2020 Federated States of Micronesia. From DXNews.com
Haru, JA1XGI will be active as V6TOPG2020 from Federated States of Micronesia during June – September 2020., V6TOPG2020 Federated States of Micronesia. From DXNews.com, ,
Read more8Q7KB Meedhupparu Island Maldives. From DXNews.com
Kazik, DL2SBY will be active as 8Q7KB from Meedhupparu Island, Maldives, IOTA AS – 013, 4 – 12 May 2020., 8Q7KB Meedhupparu Island Maldives. From
Read moreHH2AA Haiti. From DXNews.com
K0BBC will be active as HH2AA, from Haiti, IOTA NA – 096, in CQ WW WPX SSB Contest, 28 – 29 March 2020., HH2AA Haiti.
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Field Day 2020 — A Time to Adapt
Many individuals and groups organizing events for Field Day 2020 have been contacting ARRL for guidance on how to adapt their planned activities in this unprecedented time
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openSPOT3: First time setup
Antenna HF Antenna In An HOA, Chameleon MPAS 2.0 Is Discrete!! March 22, 2020 No comments Chameleon MPAS 2.0 1.8-54 MHz Modular Portable Antenna System
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The K7RA Solar Update – CQ WPX SSB 2020
We saw another week with no sunspots, which were last observed just briefly over two weeks ago on two days, March 8-9. Spaceweather.com reports that
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