Author: iz4wnp

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BTECH Power Amplifier AMP-25 Overview

Video:YouTube/BTECH Baofeng A quick look at Baofeng’s new power amplifier for use with handheld radios. You can read a review by John K3NXU by clicking…

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Il Diploma del 70° anniversario di     RadioRivista e il RR Challenge

Come tutti saprete il nostro “magazine” compie quest’anno la sua settima decade di vita, e ci sembra doverosa una celebrazione con un Diploma ad hoc….

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International Radio Network, Inrico T320 IRN, Ham Radio Smartphone

“What is the IRN? Have you heard of International Radio Network? Have you seen one of these devices? This is another method to accessing the…

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La raccolta dell’energia biomeccanica per dispositivi wearable low-power

La raccolta di energia ha attirato l’attenzione verso una tecnologia in grado di sostituire o supportare una batteria in vari dispositivi elettronici wearable/mobile. L’energia biomeccanica è classificata…

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Una efficiente raccolta di energia vibrazionale

L’energia vibrazionale è presente in molte forme nel nostro ambiente quotidiano sotto forma di energia cinetica: dal traffico veicolare alla semplice camminata. Anche se spesso…

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New 10m SSB Weekly Net

News from the Facebook page of The Southern And South Coast 10m SSB Net. Their first ever weekly SSB net takes place tonight (29/03/18) between…

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Be the First — 2018 ARRL Field Day Gear is Here!

ARRL Field Day — the most popular on-the-air operating event in Amateur Radio — is June 23-24, and official gear and supplies are now available from…

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“Receive Filters” episode of the “ARRL The Doctor is In” podcast. Listen…and learn!

Receiving every signal is not always a good thing — especially when you receive them all at once! The Doctor describes why proper filtering is…

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Inrico T320 Intelligent Two Way Radio

Inrico T320 Intelligent Two Way Radio General Description: Product Name: Intelligent Two Way Radio Brand Name: Inrico Model No.: T320 Rated Voltage: DC 3.8V by…

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Scegliere e usare tecnologia GaN per la conversione super-efficiente della potenza

L’obiettivo di aumentare l’efficienza energetica e l’affidabilità, riducendo al contempo le dimensioni complessive della soluzione, è prevalente nelle moderne applicazioni di elettronica di potenza. Tali…

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D4IA Santa Maria Sal Island Cabo Verde Cape Verde. From DXNews.com

Mike, CT1IUA will be active as D4IA, from Sal Island, IOTA AF – 086, Cape Verde, Cabo Verde, 1 – 9 April 2018., D4IA Santa…

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“Tra Terra e Cielo”

La Sezione ARI di Siena, con la finalità di avvicinare al nostro mondo radioamatoriale studenti e giovani, organizza durante la manifestazione GeoElsa 2018, il Convegno…

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MFJ 8-Band Cobweb VS Hy-Gain AV680 Comparison

“So many people asked which antenna would I rather have and which one performs better. Well, this is a basic comparison on a day not…

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Yaesu FT-818 – Unboxing [ Video ]

The new FT-818 incorporates all the many basic and attractive features of the ever-popular FT-817ND while providing upgrades desired by many existing owners. The FT-818…

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REVO SoundStage Circuit Description

REVO SoundStage Circuit Description Product: Bluetooth Speaker Brand Name: REVO Model Number: SOUNDSTAGE Rating: Input: 100-240Va.c. 50/60Hz 1.5A; Output: 18Vd.c. 3300mA. The AC/DC adaptor was…

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Considerazioni di design nella raccolta di energia RF

Nell’aria sono presenti molte fonti di energia, la nostra moderna tecnologia RF trasmette milioni (se non miliardi) di watt nell’atmosfera attraverso vari modi. La raccolta…

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Baofeng UV3R+ Inside

Seen this image posted on Facebook recently which shows the circuit board inside the Baofeng UV3R+ and thought you may like to take a look….

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VK9CH Cocos Keeling Islands. From DXNews.com

Michael, DF8AN will be active as VK9CH, from Cocos Keeling Islands, IOTA OC – 003, 6 – 10 November 2018., VK9CH Cocos Keeling Islands. From…

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VK9XQ Christmas Island. From DXNews.com

Michael, DF8AN will be active as VK9XQ, from Christmas Island, IOTA OC – 002, 3 – 6 and again 10 – 17 November 2018., VK9XQ…

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JW7XK JW6VM JW9DL JW5X Svalbard Islands. From DXNews.com

LA7XK, LA6VM and LA9DL will be active from Svalbard Islands, IOTA EU – 026, 10 – 15 October 2018, as JW7XK, JW6VM, JW9DL., JW7XK JW6VM…

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Hamvention Setting Space Aside to Spotlight Emergency Communication Vehicles

In keeping with its theme, “Serving the Community,” Hamvention® 2018 is offering an opportunity for Amateur Radio groups to display the communication vehicles they use to…

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ISS SSTV active on 145.800 MHz FM in April

The International Space Station (ISS) amateur radio Slow Scan Television (SSTV) transmissions on 145.800 MHz FM are expected to be activate over several days in April. The…

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IOTA: una criptovaluta hash-based per la protezione delle transazioni IoT

IOTA è un protocollo decentralizzato per micro-transazioni e orientato verso l’Internet of Things (IoT). La base di tutto è il Tangle, simile alla blockchain ma molto più…

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Aspetti di 5G e guida autonoma – Intervista a Frank Berthaux e Giacomo Tuveri – Marketing Managers @ Keysight

L’IoT e l’analisi predittiva giocheranno sicuramente un ruolo importante nel futuro dei test e delle misure. I data logger si scambieranno informazioni per prevenire disastri,…

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VQ5Z Turks and Caicos Islands. From DXNews.com

VE3IKV and W4TAA/VE3MMQ will be active as VQ5Z, from Turks and Caicos Islands, IOTA NA – 002, in July 2018., VQ5Z Turks and Caicos Islands….