Author: iz4wnp

RSGB to introduce remote invigilation for Foundation Exams
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RSGB to introduce remote invigilation for Foundation Exams

In response to the coronavirus emergency and to comply with the government’s social distancing recommendations, the RSGB announced on 20 March that it would stop…

Circuit Board for Bare-Bones Ventilator Moves Toward Production with Radio Amateurs’ Help
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Circuit Board for Bare-Bones Ventilator Moves Toward Production with Radio Amateurs’ Help

Radio amateurs continue to play key roles in developing the electronic control system for an open-source/architecture, modular, low-cost human patient ventilator. The device itself was…

Batterie al limone: come funzionano e quanto sono potenti?
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Batterie al limone: come funzionano e quanto sono potenti?

La realizzazione di batterie con strumenti che ci mette a disposizione la natura è un esperimento molto in voga, specialmente tra i più piccoli. L’utilizzo…

Firmware 2.0 #02 – AI
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Firmware 2.0 #02 – AI

E’ uscito il terzo numero di Firmware 2.0. Il focus di questo mese è dedicato al settore Artificial Intelligence. All’interno troverete articoli tecnici su reti…

Contest Entry Features Multiple Operator Locations and Remote Transmitter-Receiver Site
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Contest Entry Features Multiple Operator Locations and Remote Transmitter-Receiver Site

Restrictions on gatherings due to the COVID-19 pandemic recently prompted a novel approach to multioperator/multi-transmitter operation. The WW2DX entry in the CQ World Wide WPX…

JTAlert 2.16.3 – Update – FT8 – FT4
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JTAlert 2.16.3 – Update – FT8 – FT4

*** Includes Callsign database file version 2020-03-30 (2020-March-30) Changes: – US State Scan: A popup warning that a new scan is needed will be shown…

RSGB contest committees launch ‘Hope QSO Party’
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RSGB contest committees launch ‘Hope QSO Party’

To help and support radio amateurs who are isolated at home and would appreciate contact with other people, the RSGB Contest Committees are launching a…

Ham Radio Test Online! – First Recorded Technician License Completion
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Ham Radio Test Online! – First Recorded Technician License Completion

Ham Radio Test Online – USA conducts first online ham radio exam – special thanks to W5YI for supporting this project. Antenna MomoBeam DUO 6…

Ham Radio Deluxe 6.7.0.269 FT4 Release WMV
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Ham Radio Deluxe 6.7.0.269 FT4 Release WMV

This video demonstrates the method for getting FT4 QSOs into Ham Radio Deluxe Logbook correctly, uploading them to LOTW, and downloading them from LOTW so…

Algoritmi di consenso: Proof of Work, Proof of Stake o dBFT?
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Algoritmi di consenso: Proof of Work, Proof of Stake o dBFT?

Dietro ogni criptovaluta esiste sempre un algoritmo di consenso, il cui compito è assicurare che ogni transazione sia correttamente verificata e validata prima di essere…

ARI DX International: Le categorie Multi-Op sospese nel 2020
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ARI DX International: Le categorie Multi-Op sospese nel 2020

Seguendo le raccomandazioni della IARU e vista l’attuale situazione sanitaria e le ultime disposizioni normative, le categorie Multi-Operatore (sia Multi-Op Singolo TX che Multi-OP Multi…

MARS Military frequency list and schedule for nets MArch 31st 2020
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MARS Military frequency list and schedule for nets MArch 31st 2020

DOWNLOAD .PDF LIST BELOW   VHF Connect Systems CS120D UHF DMR | Newest DMR Handheld from Connect Systems March 31, 2020 No comments Read more…

ARES Members to Support Illinois Emergency Management Agency in COVID-19 Response
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ARES Members to Support Illinois Emergency Management Agency in COVID-19 Response

Illinois ARES members are supporting the Illinois Emergency Management Agency’s (IEMA) COVID-19 response activities as AuxComm Radio Operator volunteers. Illinois ARES will coordinate the number…

MomoBeam DUO 6 20-40 SF – BIBAND – 20M and 40M
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MomoBeam DUO 6 20-40 SF – BIBAND – 20M and 40M

DUO 6 20-40 SF is every contester’s dream, a dual-band yagi with separate feed line, high power handling, large bandwidth and with the usual Momobeam mechanical…

Delay in Delivery of ” Icom IC-705 “
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Delay in Delivery of ” Icom IC-705 “

Icom IC-705 Thank you for using ICOM products. Many customers have made reservations for the HF-430MHz all-mode 10W transceiver “IC-705”, which was scheduled to be…

Connect Systems CS120D UHF DMR | Newest DMR Handheld from Connect Systems
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Connect Systems CS120D UHF DMR | Newest DMR Handheld from Connect Systems

VHF Connect Systems CS120D UHF DMR | Newest DMR Handheld from Connect Systems March 31, 2020 No comments Read more ARRL Suspending Tours and Guest…

I2C-Debug: come effettuare debug sul protocollo I2C in modo semplice!
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I2C-Debug: come effettuare debug sul protocollo I2C in modo semplice!

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…

Smart contract su blockchain Ethereum, cosa sono e come funzionano
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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…

Video KL7RRC/P Sledge Island. From DXNews.com
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Video 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, ,

COVID-19 Affects Space Station Crew Transition
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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…

Understanding HF Propagation
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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…

A Simple High-Frequency Communications Receiver
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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…

FCC Grants Temporary Emergency Authority to WISPs Operating in 5.8 GHz Band
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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…

NZ hams allowed “ZM” prefix during Covid-19
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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…

LT Filter Design
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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…