Author: iz4wnp

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Bryant Rascoll, KG5HVO, is 2018 Newsline Young Ham of the Year

Fourteen-year-old ARRL member Bryant Rascoll, KG5HVO, of Montgomery, Alabama, has been selected as the 2018 Bill Pasternak WA6ITF Memorial Amateur Radio Newsline Young Ham of the Year…

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Kenwood TS-890 – Instruction Manual

  The Kenwood® TS-890S transceiver made its world debut at the 2018 Hamvention® in Xenia, Ohio.  It features full down conversion receiver with h-mode mixer and High C/N 1st LO….

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QST Antenna Design Competition Submission Deadline Looms

The deadline to submit a design for the 2018 QST Antenna Design Competition is just ahead — September 1! The competition challenge is to design the best…

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Ruth Willet, KM4LAO, is 2018 Hiram Percy Maxim Memorial Award Recipient

Nineteen-year-old Ruth Willet, KM4LAO, of Cana, Virginia, was named as the recipient of the 2018 ARRL Hiram Percy Maxim Memorial Award by the ARRL Board…

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IC-7610 Firmware Update

Model name IC-7610 Download Type Firmware Version Version 1.11 Update 2018/07/30 Notes Changes in this version Fixed an issue where the format of the Scope…

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Convertitore da 5.5 a 3.3 V per sistemi a microprocessori

Come poter soddisfare le esigenze dei nuovi potenti microprocessori che richiedono elevata corrente a 3.3 V per la presenza, al loro interno, di un numero sempre crescente di transistor. I regolatori o convertitori…

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Massimizzare l’autonomia delle batterie automotive, nonostante l’invecchiamento delle celle

Batterie di grandi dimensioni, costituite da celle ai polimeri di litio o litio-ferro-fosfato (LiFePO4) collegate in serie, ad alta densità di energia e alta potenza…

The 2018 Lithuanian Hamfest. From DXNews.com

The tradition of summer radio amateur meetings in Lithuania goes back to 1989. This was at the end of the Soviet occupation, when the country…

3W9JK/P 3W9JK Cham Island Vietnam. From DXNews.com

SP5APW will be active as 3W9JK/P from Cham Island, IOTA AS – 162, 15 – 22 September 2018 and as 3W9JK from Ho An, 22…

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Corso C avanzato su Raspberry PI: Le strutture

In questa seconda puntata del corso avanzato sul linguaggio C, con il Raspberry Pi, studieremo un tipo di dati molto particolare, la struttura. Essa è…

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Il mercato dell’elettronica nei sistemi automotive

L’elettronica automobilistica comprende sistemi azionati elettricamente dispiegati in varie parti del veicolo. L’iniezione elettronica, l’airbag, l’assistenza avanzata del guidatore e l’infotainment sono alcune delle aree…

RT65KI Idlidlya Island. From DXNews.com

Radio Amateurs members of Russian Robinson Club will be active as RT65KI from Idlidlya Island, IOTA AS – 065, 19 – 25 August 2018., RT65KI…

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Johnson Space Center Amateur Radio Club Fires Up 1950s Vintage Gear for NASA on the Air Special Event

W5RRR, the Johnson Space Center Amateur Radio Club (JSCARC), is on the air as part of the NASA on the Air (NOTA) year-long special event…

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ISS SSTV activation July 30-31

The Russian cosmonauts on the International Space Station are expected to activate amateur radio Slow Scan Television (SSTV) transmissions on 145.800 MHz FM during Monday…

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Icom PoC Full Duplex Radio System, Nationwide Coverage Over 4G / LTE Mobile Phone Network

Icom’s new PoC (Push-to-Talk Over Cellular) radio system allows you to communicate with your two-way radio system over a 4G / LTE closed network. Now…

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Debut of the Hytera AR482G DMR HT : Ham Radio 2.0: Episode 14

This is a new DMR HT from Hytera made for the Amateur Radio Community. In this episode I will show the menu of the radio…

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IC-7610 Technical Report Vol. 3 (English Version)

Released the final issue of IC-7610 Technical Report, which explains the circuits used in the IC-7610 and some excellent functions of IC-7610. Review IC-7610 Technical Report…

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XPA125B FCC Certification

100 W Solid-State Linear Power Amplifier XPA125B FCC Certification This device complies with Part 15 of the FCC Rules.Operation is subject to the following two…

Chippenham Radio Rally 29/07/2018

Video:YouTube/rigsearch A short video from today’s Chippenham Radio Rally….

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II0PN/mm da non perdere!

Cari amici,volevo informarvi che dal 1 Agosto e sino al 15 Settembre Simone Orlandini – IU5KUH sarà attivo con il nominativo speciale II0PN/mm a bordo…

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ARI Roma per gli autocostruttori

Avete in programma di costruire qualcosa per una stazione radioamatoriale? Avete già realizzato qualcosa per operare nelle bande HF? Avete in mente di creare un…

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Tutorial UML: approfondimento sulla generazione del codice

Nella scorsa punta si è iniziato ad analizzare come la rappresentazione UML sia applicata ad un caso pratico di un progetto per lo sviluppo di un generico sistema. Continuiamo in quest’ultima puntata a descriverne i tali passi…

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Dave answers questions about power supplies (#146)

Join Dave and Trevor discussing Ask Dave questions related to power supplies and other issues Review Portable Ham Radio Tips & Tricks #1 October 22,…

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FCC Proposes $18,000 Fine in Louisiana Amateur Radio Interference Case

The FCC has issued a Notice of Apparent Liability (NAL) proposing to fine Jerry W. Materne, KC5CSG, of Lake Charles, Louisiana, $18,000 “for apparently causing intentional interference and for…

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Amateur radio operators keep communication lines open during disaster

JEFFERSON PARISH, LA (WVUE) – These days, high tech communications device refers to the latest smart phone or tablets with its predecessors generally headed to…