Ionosfera – PianetaRadio.it

Propagazione real-time

Pubblicato il 06/04/2021, ultimo aggiornamento 08/01/2024 By pianetaradio

Condizioni e previsioni di propagazione ionosferica in tempo reale

Propagazione delle onde elettromagnetiche

Pubblicato il 01/01/2002, ultimo aggiornamento 01/12/2017 By pianetaradio

Le onde elettromagnetiche prodotte dal generatore vengono irradiate dall’antenna nello spazio circostante e si propagano, ovvero si muovono da una parte all’altra con velocità finita, pari nel vuoto a circa 300000 km/s. Aumentando la distanza […]

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Villa Griffone a Linea Verde

Sabato 23 novembre (ore 12:20) RAI 1 trasmetterà un servizio girato a Villa Griffone (IY4FGM). La trasmissione, realizzata nell’ambito delle celebrazioni per i 100 anni della Radio in Italia, sarà inclusa nel programma Linea Verde, che da oltre quarant'anni racconta le eccellenze italiane. [...]

L'Editoriale di novembre 2024

Non di sole quoteAlessio Sacchi, IZ4EFN Stabilire gli importi delle quote e dei servizi per l’anno in arrivo è sempre un tema articolato che, in estrema sintesi, richiede un’analisi della previsione di bilancio (quanto ci occorre per andare avanti, quanti siamo), della politica associativa (su cosa investire) e del contesto nel quale operiamo (competitivo, legislativo, fiscale). Quest’anno, coinvolge una riflessione ancora più profonda sul nostro futuro. [...]

Quote Sociali 2025

Per scaricare il documento in PDF cliccare sull'immagine [...]

Diploma 100 Anni di Radio in Italia

A partire dal 1° ottobre saranno presenti sulle bande radioamatoriali HF diverse stazioni commemorative delle Sezioni ARI con Nominativo Speciale. Per scaricare il regolamento in PDF cliccare QUI [...]

Committee Proposes Changes to ARRL By-Laws 42 and 46

Dear Member, At the 2024 ARRL Annual Meeting held in January, the Board of Directors unanimously voted to approve the establishment of a committee to assure the existence of a set of ethical standards and guidelines for Board Members as called for in ARRL By-Law 42. In addition, the committee was tasked to review By-Laws 42 (Ethics and Elections Committee) and 46 (Conflict of Interest Policy) f [...]

YouTube Telethon to Raise Money for ARRL Teachers Institute on Wireless Technology

The ARRL Teachers Institute on Wireless Technology is growing next year, and a number of social media stars are coming together to help it happen. On Saturday, November 30, a live fundraiser telethon is set to take place on the Ham Radio Crash Course YouTube channel. Host Josh Nass, KI6NAZ, will be joined by several web-famous hams to talk radio and raise money. The proceeds benefit the ARRL Ed [...]

2024 ARRL Board of Directors Election Results

ARRL® The National Association for Amateur Radio® announces the results of the 2024 ARRL Division elections.In the ARRL New England Division, Tom Frenaye, K1KI (1,593 votes), of West Suffeld, Connecticut, was declared the winner, defeating current Director Fred Kemmerer, AB1OC (1,452 votes).Frenaye has previously served on the ARRL Board of Directors in several capacities, including as Director [...]

NCVEC Question Pool Committee Removes Two Pool Questions From Use

The National Conference of Volunteer Examiner Coordinators (NCVEC) Question Pool Committee (QPC) has removed one Extra Class pool question and one General Class pool question from use. Both Extra pool question E2A13 and General pool question G8C01 have been deleted from use on examinations as the two questions each have more than one correct answer. The deleted questions must be removed from ex [...]

ARRL November Sweepstakes Phone November 16–18

RSGB launches practical events web section

The RSGB is keen to promote practical events for radio amateurs as a way of developing their skills and retaining their interest in amateur radio. The Society has also demonstrated that buildathons are a great way of engaging new audiences, giving people a taste of amateur radio in a fun and supportive environment. As part […] [...]

IARU Region 1 awards update

The RSGB Awards Manager has announced that, with the support of the Board, he has added new categories of achievement to the IARU Region 1 Award. These include WARC bands only, 10MHz only, 18MHz only and 24MHz only. The standard IARU Region 1 Award check spreadsheet should continue to be used for these categories. However, […] [...]

Get involved with Youngsters on the Air Month

With just two weeks to go until Youngsters on the Air Month (YOTA), operating slots for GB24YOTA are fast filling up. The special call sign will be active throughout December and is a fantastic opportunity to get youngsters active on the amateur bands. Whether you are part of a school, university, youth group, a club […] [...]

GB2RS News Script for 17 November 2024

Tap or click the link below to download this week’s news script News script for 17 November 2024 (MS Word document) [...]

Also in GB2RS this week…

The RSGB National Radio Centre at Bletchley Park will be closed on Christmas Eve, Christmas Day, Boxing Day and New Year’s Day. There will also be reduced hours on New Year’s Eve when the centre will be closing at 2pm. Following the seasonal closures the NRC will also be closed for essential maintenance works on […] [...]

ANS-322 AMSAT News Service Weekly Bulletins

In this edition: * AMSAT OSCAR-7 50th Anniversary – A Testbed for Saving Lives * Another Batch of CubeSatSim Kits Available Soon in AMSAT Store * SpaceX Dragon Fires Thrusters to Boost ISS Orbit for the First Time * SEAQUE Quantum Tech Arrives at ISS for Groundbreaking Demo * Changes to AMSAT-NA TLE Distribution for ... Read more [...]

ANS-315 AMSAT News Service Weekly Bulletins

AMSAT News Service ANS-315 November 10, 2024 In this edition: Celebrating AO-7: First Earth-Space-Space-Earth Relay Communications September/October 2024 Issue of The AMSAT Journal Available 2024 AMSAT Symposium Proceedings Available to AMSAT Members ASRTU-1 Satellite With FM Transponder Launched MO-122 Telemetry Beacon Level and Update – November 9, 2024 ARISS SSTV Event Changes to AMSAT TLE ... Read more [...]

ANS-308 AMSAT News Service Weekly Bulletins

In this edition: The AMSAT News Service bulletins are a free, weekly news and information service of AMSAT, the Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and ... Read more [...]

ANS-301 AMSAT News Service Weekly Bulletins

In this edition: * AMSAT Board of Directors Elects Officers * 42nd Annual AMSAT Space Symposium Held in Tampa * GridMasterMap Satellite Top 100 Rovers November 2024 Rankings * CatSat Commissioning is Near * Administration Eases Restrictions On Space-Related Exports * Intelsat Satellite Explodes In Orbit * Changes to AMSAT-NA TLE Distribution * Reflect Orbital ... Read more [...]

ANS-294 AMSAT News Service Weekly Bulletins

In this edition: * 42nd Annual AMSAT Space Symposium to Proceed After Hurricane Milton * 2024 AMSAT-UK Colloquium: A Weekend of Satellite Innovation and Collaboration * SpaceX Achieves First Super Heavy Booster Catch in Landmark Starship Flight * NASA’s Europa Clipper Embarks on Epic Journey to Explore Alien Ocean World * European Spacecraft Launches to ... Read more [...]

ENAMS online presentations

Recently news post on the IARU-R1 website and email have informed about the new generation of the noise measuring receiver ENAMS 2.0 (developed by DARC) within the IARU-R1 Noise Measuring Campaign (NMC). In order to spread information and to allow … [...]

IARUMS R1 Newsletter October 2024

The IARUMS Region 1 Newsletter October 2024 is now available.Click on the link to read it! … [...]

ENAMS 2.0 available for pre-orders

What is ENAMS ? ENAMS stands for Electrical Noise Area Measurement System. It is a network of receivers that automatically measures and records the background noise level in the radio frequency spectrum from 66 kHz to 31 MHz. This data … [...]

Radio Devroom @FOSDEM’25 (1st February)

Calling all Free and Open-Source Radio Enthusiasts! Wondering what Amateur Radio and Software-Defined Radio are all about? We’ve got you covered with a clear introduction – check out the “Recommended Topics” section! We’re calling on developers and users of Free … [...]

International Day of Persons with Disabilities on 3 December 2024

Join Us in Celebrating the Program for Disabled Radio Amateurs (PDRA) on International Day of Persons with Disabilities! Hosting special operating activities or nets that focus on accessibility in amateur radio. Sharing stories and achievements of disabled ham operators within … [...]

100 anni di radio !

Anche l’A.I.R. intende commemorare i primi 100 di radio in Italia dedicandogli questa pagina e sperare in un suo futuro migliore, particolarmente nel nostro paese dove sono stante abbandonate le onde corte e recentemente [...]

Radiorama Numero 129

Nuovo numero di Radiorama disponibile per il download. Vi ricordiamo che nel menu, alla voce RADIORAMA è possibile scaricare anche i numeri precedenti gratuitamente in formato PDF. Se non disponete di un lettore PDF [...]

Sconto SANDIT riservato ai Soci AIR!

Sandit Libri propone a tutti gli associati AIR uno sconto incondizionato su tutti i libri in catalogo del proprio sito www.sanditlibri.it del 10% sul costo del libro già scontato del 5% (applicato sul sito), [...]

Radiorama Numero 128

L’A.I.R. al MUMEC di Arezzo

Il MUMEC Museo dei Mezzi di Comunicazione è una realtà attiva nel territorio aretino dal 2005, di rilevanza regionale dal 2018 e che ad oggi conta più di duemila pezzi esposti in 500 mq [...]

T46W – Cayo Santa Maria, NA-204

Team consisitng CO6XDX, CO6XX, CO6VV, CO6SDY, CO6RK, CO6OU, CM6EZ and CL6AX will be active from Cayo Santa Maria, NA-204 – Cuba as T46W during December 1-10, 2024. QRV on 160-6m; various modes. Grid: FL02LP. POTA activity also expected from CU-0292 and CU-0298. QSL via CO6QK, LoTW. [...]

3D2Y – Rotuma

[NEWS UPDATE] – It is now 6 days since we arrived in Rotuma. We have ongoing challenges concerning electricity here in Rotuma. We have a number of power solutions, which we are implementing, however none of them are flawless and we ask for patience if we are off air or operating a reduced capacity. We […] [...]

VP8G – Falkland Islands

[UPDATE @ 2000z] – Again QRV: Late afternoon it became sunny and the storm slowed down. It took me 45 minutes to fix both antennas. Ready for the VP8G pile-ups again. Thanks for your patience. [NOVEMBER 20 @ 1300z] 20 and 17m wires got away from a spreader arm. Need to take the antenna down […] [...]

V73WE – Marshall Islands

[NEWS] – As usual during my expeditions, I will be paying attention to the weaker stations for which I am ATNO. Much more fun with one weak station than with 20 big guns.. [NOVEMBER 5] – Janusz, SP9FIH announces his next adventure is going to be from Majuro Atoll, Marshall Islands during November 29 to […] [...]

3D2AG/P – Rotuma

[UPDATE] – Antoine, 3D2AG says the boat for Fiji left Rotuma on Monday 18th at 0600 UTC, and he’s now back at home. He had quite an ordeal the last week on Rotuma having contracted both a viral infection and a severe cellulitis of the leg which had him bedridden for three days, and unable […] [...]

CT9/OM7JG Madeira Island. From DXNews.com

OM7JG is active as CT9/OM7JG from Madeira Island, IOTA AF - 013, Portugal. [...]

TO4A FM/VE3DZ Martinique. From DXNews.com

Yuri, VE3DZ will be active as TO4A and FM/VE3DZ from Martinique Island, IOTA NA - 107. [...]

OX5DM Greenland. From DXNews.com

Dave, OZ5DM is currently active as OX5DM from Greenland, IOTA NA - 018. [...]

GU4CHY Guernsey Island. From DXNews.com

Dick, GU4CHY will be active from Guernsey Island, IOTA EU - 114, in CQ WW DX CW Contest, 23 - 24 November 2024, as GU4CHY. [...]

6Y6N Jamaica. From DXNews.com

Armin, DK9PY is currently active again as 6Y6N from Jamaica, IOTA NA - 097. [...]

Tag: Ionosfera

Propagazione real-time

Propagazione delle onde elettromagnetiche

Sperimentazione banda 160 metri

Sperimentazione banda 4 metri

Software VHF e superiori

Piattaforma incassi amministrazioni dello Stato

XHDATA D-808