Author: iz4wnp

OJ0/OH3BRJ OJ0/OH3BRK Market Reef. From DXNews.com

OJ0/OH3BRJ and OJ0/OH3BRK will be active from Market Reef, IOTA EU – 053, 6 – 7 August 2020., OJ0/OH3BRJ OJ0/OH3BRK Market Reef. From DXNews.com, ,

FCC Fines HobbyKing Nearly  Million for Marketing Unauthorized Drone Transmitters
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FCC Fines HobbyKing Nearly $3 Million for Marketing Unauthorized Drone Transmitters

The FCC has issued a Forfeiture Order (FO) calling for HobbyKing to pay a fine of $2,861,128 for marketing drone transmitters that do not comply with FCC…

ISS MAI-75 SSTV activity planned for Aug 4-5
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ISS MAI-75 SSTV activity planned for Aug 4-5

It is planned Russian cosmonauts will transmit amateur radio Slow Scan Television (SSTV) images from the International Space Station (ISS) during August 4-5 on 145.800…

Is the Airspy Discovery HF+ sensitive on VLF? Testing with a Garrett metal detector
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Is the Airspy Discovery HF+ sensitive on VLF? Testing with a Garrett metal detector

“It occurred to me that my Garrett metal detector is a signal source at 13.6 KHz, so I decided to test to see if the…

Lo stack di rete wireless MiWi
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Lo stack di rete wireless MiWi

Analizziamo in questo articolo una soluzione semplice e a basso costo per connettività wireless short-range. Sempre più applicazioni richiedono connettività wireless a corto raggio e…

An active region belonging to Cycle 25 will begin to turn into view off the northeast limb during the next 24 hours
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An active region belonging to Cycle 25 will begin to turn into view off the northeast limb during the next 24 hours

An active region belonging to Cycle 25 will begin to turn into view off the northeast limb during the next 24 hours. So far the…

AMSAT Partners with University of Maine WiSe-Net Lab to Develop State’s First CubeSat
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AMSAT Partners with University of Maine WiSe-Net Lab to Develop State’s First CubeSat

The University of Maine Wireless Sensing Laboratory (WiSe-Net Lab) and AMSAT have signed an agreement to collaborate on building and operating MESAT1, Maine’s first small…

The new Silphase R1 SDR receiver
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The new Silphase R1 SDR receiver

Frequency coverage RX 0.1–30MHz Frequency resolution 1Hz Dial step 1Hz to 1KHz Dual VFO Direct sampling 16bit high speed 122 M/s ADC Mode CW, SSB,…

Sistemi Smart Radio nei settori metering e medicale
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Sistemi Smart Radio nei settori metering e medicale

La continua riduzione dei consumi e delle dimensioni della componentistica elettronica rende possibili applicazioni fino ad oggi impensabili, soprattutto nel mercato dei radio controlli. Moduli ricetrasmettitori…

Keysight Technologies aderisce all’Ericsson Industry 4.0 Partner Program
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Keysight Technologies aderisce all’Ericsson Industry 4.0 Partner Program

Keysight Technologies è un’azienda tecnologica leader che aiuta le aziende, i fornitori di servizi e i governi ad accelerare l’innovazione per connettere e rendere più…

Potenziometro digitale a controllo analogico
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Potenziometro digitale a controllo analogico

Questo articolo propone un circuito in grado di controllare il valore di un potenziometro digitale partendo da una semplice tensione analogica. Il circuito proposto permette…

TO0Z Saint Barthelemy Island. From DXNews.com

TO0Z Team will be active from Saint Barthelemy Island, IOTA NA – 146, 14 – 17 September 2020., TO0Z Saint Barthelemy Island. From DXNews.com, ,

La sicurezza delle reti intelligenti
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La sicurezza delle reti intelligenti

Analizziamo in questo articolo una Smart Grid e le proposte di Freescale (NXP). Gli attacchi ai computer sia pubblici che privati da parte di virus, rootkit,…

Solar activity remains at very low levels on Thursday
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Solar activity remains at very low levels on Thursday

Solar activity remains at very low levels on Thursday. The lone spotted region (AR 2767) continues to transit the southeast quadrant and its not magnetically…

ARRL Members to Lead New 30-Minute Amateur Radio Webinar Series
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ARRL Members to Lead New 30-Minute Amateur Radio Webinar Series

ARRL is launching a new webinar series to help introduce more members to the variety of activities and opportunities that radio amateurs enjoy. The ARRL Learning…

UltraLight Magnetic Loop Antenna – NEW Original Packaging!
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UltraLight Magnetic Loop Antenna – NEW Original Packaging!

VHF Anytone AT-3318UV-A VHF and UHF June 19, 2015 No comments Anytone AT-3318UV-A  Features: 5 Watts VHF 4 Watts UHF RX & TX 136-174 MHz…

Gestire batterie Li-Ion
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Gestire batterie Li-Ion

In questo articolo analizziamo caratteristiche e funzionalità del controller MCP73871 di Microchip. Praticamente tutti i sistemi portatili utilizzano oggi batterie agli ioni di litio o litio-polimeri. L’incremento…

5H1ES Zanzibar Island. From DXNews.com

Elvira, IV3FSG will be active from Zanzibar Island (IOTA AF-032) 19 February – 11 March 2015 as 5H1ES., 5H1ES Zanzibar Island. From DXNews.com, ,

TT8ES Chad. From DXNews.com

Elvira ,IV3FSG currently active from Chad as TT8ES., TT8ES Chad. From DXNews.com, ,

TL8ES Central African Republic. From DXNews.com

Elvira, IV3FSG will be active from M’Baiki, Central African Republic starting next few days as TL8ES., TL8ES Central African Republic. From DXNews.com, ,

XT2SE Burkina Faso. From DXNews.com

Elvira, XT2SE will be active again from Burkina Faso, 1 – 13 June 2019., XT2SE Burkina Faso. From DXNews.com, ,

AMSAT Partners with UMaine’s WiSe-Net Lab to Develop Maine’s First Small Satellite
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AMSAT Partners with UMaine’s WiSe-Net Lab to Develop Maine’s First Small Satellite

BY Paul Stoetzer The University of Maine Wireless Sensing Laboratory (WiSe-Net Lab) and AMSAT have signed an agreement to collaborate on building and operating MESAT1, Maine’s first…

More than 12,000 Register Early for QSO Today Virtual Ham Expo
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More than 12,000 Register Early for QSO Today Virtual Ham Expo

More than 12,000 have registered to attend the first QSO Today Virtual Ham Expo, August 8 – 9, QSO Today host Eric Guth, 4Z1UG, said this week. “Since the…

Mounting a Portable Mast
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Mounting a Portable Mast

Review Xiegu G90 Unboxing July 07, 2020 No comments G90 is a portable 20W HF amateur radio transceiver with an SDR architecture with built-in auto…

Next RSGB IOTA Contest: 25-26 July 2020
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Next RSGB IOTA Contest: 25-26 July 2020

The RSGB IOTA Contest, using the Islands on the Air concept, was created in 1993. This is now a major international event, attracting thousands of…