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American Radio Relay League | Ham Radio Association and Resources


The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.


The K7RA Solar Update  Voir?

On Wednesday, June 20 Spaceweather.com reported the sudden emergence of sunspot AR2715. The sunspot number on that day shot up to 54, and it was 53 the next day. Average daily sunspot number for the reporting week (June 14-20) was 25.7, up from 4 the previous week. Average daily solar flux rose from 69.4 to 74. Solar flux was 82.1 on June 20.

We have not seen numbers such as this since last Sept...

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(22/06/2018 @ 06:38)
IARU Welcomes Member-Society for St. Kitts & Nevis  Voir?

The International Amateur Radio Union (IARU) has welcomed the St. Kitts-Nevis-Anguilla Amateur Radio Society (SKNAARS) as its newest member-society. IARU member-societies on May 28 completed voting on the proposed admission of SKNAARS to the IARU to represent St. Kitts & Nevis.

SKNAARS does not claim to represent Anguilla, which is already represented in the IARU by the Anguilla Amateur Radio So...

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(21/06/2018 @ 13:19)
(21/06/2018 @ 06:33)
KX9X Wins the June QST Cover Plaque Award  Voir?

The winning article for the June 2018 QST Cover Plaque award is “Get on the Satellites for ARRL Field Day” by Sean Kutzko, KX9X. The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the July issue today.

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(20/06/2018 @ 14:11)
(20/06/2018 @ 14:08)
ARISS-Russia Testing Undeployed CubeSats from ISS  Voir?

ARISS-Russia is making FM transmissions on June 20 and 21 from two of its Tanusha series of CubeSats, now aboard the International Space Station. Russia's ARISS organization has been developing the spacecraft in collaboration with Southwest State University in Kursk.

Two earlier Tanusha CubeSats were hand-deployed by cosmonauts last August and are performing cluster flight experiments through co...

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(20/06/2018 @ 13:55)
(20/06/2018 @ 12:57)
Experiments Look to Leverage Low-Latency HF to Shave Microseconds off Trade Times  Voir?

Experimental operations now under way on HF appear aimed at leveraging low-latency HF propagation to shave microseconds from futures market trades and gain a competitive edge in a field where millionths of a second can mean winning or losing. Bloomberg on June 18 reported on a secretive antenna facility near Maple Park, in Kane County, Illinois, and speculated that futures traders might be look...

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(20/06/2018 @ 12:41)
(20/06/2018 @ 09:08)
W1AW Announces Field Day Bulletin Schedule  Voir?

W1AW has announced its Field Day bulletin schedule. Those participating in Field Day can earn 100 bonus points for copying the special Field Day bulletin transmitted by W1AW or by K6KPH during its operating schedule on Field Day weekend. The Field Day bulletin must be copied via Amateur Radio. An accurate copy of the message must be included in your Field Day submission in order to earn the bon...

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(19/06/2018 @ 15:01)
Prolific QSL Manager Kappy Kaplan, WA4WTG, SK  Voir?

R. Robert “Kappy” Kaplan, WA4WTG, of Dania Beach, Florida, who served as the QSL manager for more than 100 DX stations and DX operations over many years, died on June 16. An ARRL member, he was 93. His QSL clients included a long list of individual stations in Israel and a number of Caribbean operations by US radio amateurs.

In addition to Amateur Radio, he enjoyed hand carving Kachina Dolls, ma...

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(19/06/2018 @ 14:55)
(19/06/2018 @ 14:52)
(19/06/2018 @ 09:30)
Assigning Kosovo Z6 Call Signs “Unauthorized and Illegal,” ITU Secretary-General Says  Voir?

Kosovo, which won its battle to become a DXCC entity earlier this year, appears to have another fight on its hands. International Telecommunication Union (ITU) Secretary-General Houlin Zhao has determined that the Z6 call sign prefix was never allocated to Kosovo. The Secretary-General issued his finding in the wake of a March 16 inquiry from Serbia, from which Kosovo declared independence 10 y...

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(18/06/2018 @ 15:28)
ARRL Website, Services to be Down for Up to 4 Hours on June 20  Voir?

The ARRL website and some services will be down for maintenance for up to 4 hours on Wednesday, June 20, starting at approximately midnight EDT (0400 UTC on Thursday, June 21). During this period some or all systems may be temporarily inaccessible, including all content on the ARRL website and the ARRL Store. Logbook of The World (LoTW) and email will not be affected, nor should the ARRL Contes...

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(18/06/2018 @ 09:00)

Dernière mise à jour : 25/06/2018 @ 10:27


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Evaluation de la vitesse de connexion de votre PC à ce site

Cliquez sur le bouton pour évaluer la vitesse de votre connexion entre votre PC et ce site web.

Ce test ne fait qu'une évaluation en calculant le débit moyen pour charger une image depuis le site vers votre PC.

Le résultat mesure donc la vitesse de chargement d'une image à un moment donnée. Evidemment, si d'autres chargements sont en cours, la mesure est faussée.


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