In honor of Colombia's Independence Cry ("Grito de Independencia") of July 20, 1810, Radioaficionados Unidos (HK4RAU), together with the Colombian amateur radio community, is pleased to invite operators from around the world to contact our special event station, 5K4IC. This special activation celebrates 216 years of freedom and sovereignty, paying tribute to the Land of Freedom, Courage, and Hope, as well as to two of Colombia's most influential national heroes: Simón Bolívar

To celebrate the 40th anniversary of the AmateurFunk Verein Liechtenstein, the special event station HB040A will be on the air. Operations will take place on SSB and FT8/FT4 during the following periods: July 17–19, 2026 August 28–30, 2026 Please note: No paper QSL cards will be available.

Op: JK1JXZ Bands: 6M - 80M Qsl Info: Qsl via LoTW Start Date - End Date: Jul. 30 - Aug. 07 Webpage: https://www.qrz.com/db/T2JK Notes: He will be active after 5:00 PM Tuvalu time on weekdays and throughout the weekend during his stay.

Op: 8P6PE Bands: HF Qsl Info: Qsl via LoTW, QRZ or eQSL Start Date - End Date: Jul. 25 - Aug. 09 Webpage: https://www.qrz.com/db/9Y4/8P6PE Notes: He will be activating several POTA parks.

170th Anniversary of Nikola Tesla’s Birth. July 10, 2026, marks the 170th anniversary of the birth of Nikola Tesla. To commemorate this milestone, the Mazowieckie Stowarzyszenie Radioamatorów TESLA is organizing a special award program honoring one of the greatest inventors in the history of electrical engineering and radio technology. Nikola Tesla's pioneering work laid the foundation for the development of alternating current (AC) systems, electric power transmission, and r

Op: ZL4CZ Bands: 10M, 12M, 15M, 17M, 20M & 40M Mode: SSB Qsl Info: Qsl via IK2DUW Start Date - End Date: Jul. 27 - Aug. 06 Webpage: https://www.qrz.com/db/E51CZZ Notes: From July 27–31, he will be active from Rarotonga Island (IOTA OC-013), and from August 1–6, he will operate from Aitutaki Atoll (IOTA OC-083).

Ops: HL4BPL, HL4CBI, HL4CEL, HL4CRO, DS4AOW, DS4BGR, DS4FMG & DS5ANY Bands: 70CM - 160M Modes: CW, SSB, FT4 & FT8 Qsl Info: Qsl via direct, LoTW, eQSL, QRZ or ClubLog OQRS Start Date - End Date: Jul. 17 - Jul. 19 Webpage: https://www.qrz.com/db/D73G Notes: Ch'ongsan Isl. (IOTA AS-085)

Contest: IARU HF World Championship Date: Jul. 11, 1200Z to Jul. 12, 1159Z Rules: https://www.arrl.org/iaru-hf-world-championship

YR50NADIA is a special event callsign commemorating the 50th anniversary of one of the greatest moments in Olympic history. In July 1976, 14-year-old Nadia Comăneci of Romania became the first gymnast ever to receive a perfect 10.0 at the Montreal Olympic Games. Throughout July, members of the Federația Română de Radioamatorism (Romanian Amateur Radio Federation) will be active using YR50NADIA to celebrate this historic achievement. More information: https://www.qrz.com/db/YR

Op: G0VJG Bands: 6M & HF Modes: SSB, CW, FT4 & FT8 Qsl Info: Qsl via M0OXO Start Date - End Date: Jul. 17 - Jul. 28 Webpage: https://www.qrz.com/db/VP5G Notes: He will be QRV in the RSGB IOTA Contest.

T40FRC is a special event callsign that will be active on multiple bands and modes by the Grupo DX de Cuba, commemorating the 60th anniversary of the Federación de Radioaficionados de Cuba (FRC), founded on July 15, 1966. Please note that operating activity may be intermittent due to frequent and widespread power outages across Cuba. QSL via LoTW.

Op: DG3FEH Bands: 15M, 20M & 40M Mode: SSB Qsl Info: Qsl via DG3FEH bureau Start Date - End Date: Jul. 18 - Jul. 23

Solar activity remains high as the sun crackles with X-class and near-X-class solar flares. Three sunspots are participating (4477, 4478 and 4479), and they appear to be talking to one another. Consider this 8-hour movie recorded on July 1st by NASA's Solar Dynamics Observatory: The sequence includes a pair of M3-class solar flares and a powerful M8.5. All of the explosions are puffing clouds of hot plasma into space--some of them with an Earth-directed component. Our magneto

Op: PA1SND Band: 40M Modes: SSB & CW Qsl Info: Qsl via bureau Start Date - End Date: Jul. 04 - Jul. 17 Webpage: https://www.qrz.com/db/LX/PA1SND Notes: He will be operating QRP

The Island Hopper Group is heading back to Tangier Island for the 2026 RSGB IOTA Contest, along with POTA activations in the days leading up to the event. 📍 Tangier Island is located in the Chesapeake Bay, Virginia (USA) and is part of IOTA NA-083 and Grid Square FM17. The first operators will be on the island July 22–26, with the rest of the team arriving on July 24. The group will use their personal callsigns for POTA activations and the special contest callsign K4T during

Op: IZ3KVD Bands: HF Qsl Info: Qsl via LZ1JZ Start Date - End Date: Jul. 08 - Jul. 17 Webpage: https://www.qrz.com/db/IZ3KVD Notes: Holiday-style operation

Special callsign SN93LOT will be active from 1 to 31 July 2026 to commemorate the 93rd anniversary of the ill-fated transatlantic flight of Lithuanian pilots Steponas Darius and Stasys Girėnas. On 15 July 1933, the two pilots departed New York City in their small aircraft Lituanica, attempting a nonstop flight to Kaunas, Lithuania. After successfully crossing the Atlantic Ocean, they crashed on 17 July just 650 km short of their destination. QSL via SP1PMY. For more informati

The Tour de France Radioamateur Challenge is a special on-air operating event organized by the REF in partnership with local amateur radio clubs and associations. It runs in parallel with the 2026 Tour de France cycling races — the men’s edition (4–26 July) and the women’s edition (1–9 August). Throughout the event, special event stations with the callsign TMxxTFR (where “xx” is the two-digit French department number) will be activated for one week in departments hosting a st