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Buon compleanno 425 DX News!

ARI Nazionale -


425 DX News (dal 2005 il Bollettino DX dell'ARI) trae origine da un gruppo di radioamatori del triangolo Milano-Genova-Torino che negli Anni Ottanta del secolo scorso avevano l'abitudine d'incontrarsi sui 145.425 MHz per scambiare informazioni DX. A un certo punto fu chiaro che i 2 metri non erano più adeguati, perché escludevano le persone al di fuori di quella zona. La truppa organizzò quindi un net settimanale d'informazione per i DXer italiani, dapprima in 10 metri e successivamente in 80. All'inizio degli Anni Novanta, mentre il Packet Radio prendeva piede e la rete Packet Cluster diventava sempre più affidabile, nacque il bollettino chiamato 425 DX News in ricordo della frequenza da dove tutto aveva avuto inizio.Fra il Maggio 1991 e il Marzo 1995 il bollettino fu redatto in italiano e spedito sui network BBS e PCL. Con l'avvento di Internet, furono creati il sito web (www.425dxn.org) e la lista di distribuzione [425eng] (che dal 2010 si trova su Google Groups), e 425 DX News abbandonò l'italiano per l'inglese

FATE I VOSTRI CONTI DUNQUE.....E AUGURATE CON NOI: BUON COMPLEANNO 425DXNEWS!!!

Emergency Ventilator Designed and Constructed by Hams Going to FDA

Da ARRL -

Radio amateurs have succeeded in providing a complete, working ventilator system to University of Florida researchers who are in the process of applying to the Food and Drug Administration for an Emergency Use Authorization (EUA). A successful submission would blaze the way for volunteers and manufacturers around the world to create low-cost, highly functional Intensive Care Unit (ICU) or anest...

Radio Amateur Finds Another “Zombie Satellite”

Da ARRL -

British Columbia radio amateur Scott Tilley, VE7TIL, has found another “zombie satellite,” as he calls them. This time, he tracked and identified radio signals from the experimental UHF military communication satellite LES-5. Tilley says he found the satellite in what he called a geostationary “graveyard” orbit after noting a modulated carrier on 236.7487 MHz.

“Most zombie satellites are satelli...

The Latest Episode of ARRL Audio News is Now Available

Da ARRL -

Listen to the new episode of ARRL Audio News on your iOS or Android podcast app, or online at http://www.blubrry.com/arrlaudionews/. Audio News is also retransmitted on a number of FM repeaters. Click here and then scroll down to see the list.

 

UN International Center in Vienna Joins Stay-at-Home Movement

Da ARRL -

The Vienna International Center in Austria has authorized the call sign 4U2STAYHOME for use by the Vienna International Amateur Radio Club, which normally identifies as 4U1VIC. United Nations Amateur Radio Club President, James Sarte, K2QI, approved the call sign to promote amateur radio goodwill and over-the-air social networking. QSL cards go to UA3DX. Contacts with 4U2STAYHOME count for both...

International Marconi Day Canceled

Da ARRL -

Add International Marconi Day (IMD) to the roster of amateur radio events canceled due to the COVID-19 pandemic. IMD celebrates the role of wireless pioneer Guglielmo Marconi played in the development of radio technology. The 24-hour event is held annually to celebrate Marconi’s birthday on April 25, 1874, and is typically held on the Saturday in April closest to that date. This year, IMD would...

The K7RA Solar Update

Da ARRL -

The last day with a visible sunspot was April 4.

Over the past reporting week, April 16-22, average daily solar flux was 69, down a half point from the previous week, when the average was 69.5.

Average daily planetary A index was 7.3 while mid-latitude A index was 7. This was up from 6.1 and 5, mainly due to the first geomagnetic storm of 2020, which pushed planetary A index to 18 on April 19. Th...

Ballot Counting Postponed in Four ARRL Section Manager Elections

Da ARRL -

During these unprecedented times of social distancing and staying at home, the ARRL Ethics and Elections Committee (E&E) has postponed ballot counting for four contested Section Manager elections.

Since March 23, ARRL Headquarters staff has been working remotely under the Governor of Connecticut’s mandate, which is currently in effect through May 20 and may be extended into June. The ballots for...

25 aprile, il giorno di Marconi

ARI Nazionale -


Guglielmo Marconi nacque a Bologna il 25 aprile 1874 nella residenza della famiglia Marconi del palazzo Orlandini in via delle Asse 1170 (oggi via IV Novembre, 7).

L’anno successivo a quello di morte di Guglielmo Marconi avvenuta il 20 luglio 1937, la data del 25 aprile verrà riconosciuta festività tramite la legge del 28 marzo 1938, pubblicata poi sulla Gazzetta Ufficiale n. 85 del 12 aprile 1938: “Il giorno 25 aprile, anniversario della nascita di Guglielmo Marconi, è dichiarato, a tutti gli effetti, giorno di solennità civile”.

Subito dopo la guerra, l’allora governo provvisorio, mediante un Decreto Legge del 22 aprile 1946, dichiarava il 25 aprile festa nazionale a celebrazione della liberazione del territorio italiano: il 25 aprile 1945 è il giorno in cui il Comitato di Liberazione Nazionale Alta Italia (CLNAI), con sede a Milano, proclamò l’insurrezione generale in tutti i territori ancora occupati dai nazifascisti.

Bisognava arrivare nel 1794, a cento anni dalla sua nascita, in cui il 25 aprile divenne la data principale delle celebrazioni dell’anno marconiano.

Negli anni a seguire tranne nell’ambiente radioamatoriale, la data marconiana del 25 aprile è andata quasi del tutto dimenticata. Fanno eccezione una piccola parte dei radioamatori del mondo, che si ritrovano in questa data, spesso riuniti come radioclub, per celebrare la nascita di Marconi con attività radio, award, contest, mostre e convegni.

Tra i tanti merita di essere ricordato il radioclub inglese CRAC, Cornish Radio Amateur Club, che ogni anno, fin dal 1987, organizza l’evento più importante al mondo coinvolgendo circa 50 stazioni commemorative sparse nei luoghi collegati all’opera di Guglielmo Marconi: l’International Marconi Day.

Ad oggi, il maggior numero di stazioni commemorative marconiane sono ubicate in Italia e la maggior parte di queste, dal 2014, fanno rete mediante il CSMI, Coordinamento delle Stazioni Marconiane Italiane.

Fonte: CSMI

NOAA Updates Solar Cycle 25 Prediction

Da ARRL -

Frank Donovan, W3LPL, notes that the National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center (SWPC) has published its official updated prediction of Solar Cycle 25 in new, interactive Solar Cycle Progression graphs. The updated prediction is based on the results of NOAA’s Solar Cycle 25 Prediction Panel.

“SWPC forecasts a solar maximum between 105 and 125, with the...

Nomination Deadline Extended for Philip J. McGan Memorial Silver Antenna Award

Da ARRL -

In light of the coronavirus pandemic, the ARRL Public Relations Committee has extended the nomination deadline for the Philip J. McGan Memorial Silver Antenna Award until Monday, June 15, 2020.

 

The Philip J. McGan Memorial Silver Antenna Award is presented annually to a radio amateur who has demonstrated success in his or her public relations efforts on behalf of amateur radio and who best exem...

Contest University (CTU) 2020 will be Free and Online

Da ARRL -

Tim Duffy, K3LR, has announced that Contest University (CTU) USA 2020 will be held online via Zoom on Thursday May 14, starting at 1245 UTC. CTU 2020 is free. The CTU course outline has been posted online. Connection details to the CTU Zoom bridge will be posted on the Contest University site one week prior to CTU. Sessions will be recorded for viewing any time after May 14. Slide decks will be...

Hams in India Provide Communication Assistance during COVID-19 Pandemic

Da ARRL -

According to a report in The New Indian Express, amateur radio operators in Kerala state have joined the fight against COVID-19. The newspaper said the district administration has enlisted radio amateurs to improve important communication between departments and offices. Upward of 20 hams are involved, organized into teams.

Radio Amateur Society of Ananthapuri President Dr. Zakheer Hussain, VU3...

FCC Seeking World Radiocommunication Conference Advisory Committee Members

Da ARRL -

The FCC has announced that it’s looking for individuals or entities to serve on its World Radiocommunication Conference Advisory Committee. The committee will provide advice, technical support, and recommended proposals in the run-up to World Radiocommunication Conference 2023 (WRC-23). In particular, the committee will focus on international frequency spectrum issues identified on the WRC-23 a...

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