NA4DA – Andy Allen

Category: News

  • Following Earthquake in Venezuela, Radio Amateurs Asked to Keep Frequencies Clear

    Following Earthquake in Venezuela, Radio Amateurs Asked to Keep Frequencies Clear

    Post Content American Radio Relay League | Ham Radio Association and Resources Read More

  • The ARRL Solar Update

    The ARRL Solar Update

    Solar activity has remained at low levels, with frequent C-level activity in the SE quadrant of the solar disk. The largest flare of the period was a C3.8 on June 24 from Region 4478, which is the large sunspot that Solar Orbiter had been tracking across the Sun’s far side.

    While the majority of the flaring activity this period came from 4478, Region 4475 also produced several small C-flares as…

    American Radio Relay League | Ham Radio Association and Resources Read More

  • New Digital Mode – JTTY

    We (the WSJT Development Team) have completed our transition to a modern cloud-based development environment with automated package building and testing. Related changes to our workflow procedures reduce local burdens on team members and allow for faster development and more frequent releases. This is good news for all users of WSJT-X, MAP65, and QMAP! Our […] This post appeared first on:​ DX-World Want to know more about it? Read More

  • 8R1TM – Guyana

    Aldir, PY1SAD is again active from Georgetown, Guyana as 8R1TM until July 26, 2026. QRV on all bands + 6m; CW, SSB + digital & SAT. QSL via eQSL, LoTW or Direct. Grid: GJ06vs. This post appeared first on:​ DX-World Want to know more about it? Read More

  • 9N7XT – Nepal

    Jan, DL4XT reports that he plans to be active from Nepal in October. He says: The plan is around a 2 week stay close to Kathmandu. Special thanks to Rob S53R and Nabin 9N2NK who made this DXpedition possible.  – Modes: CW, SSB, FT8.  – Bands: 160-10m.  – TRX: FT 891 100w.  – PA: JUMA […] This post appeared first on:​ DX-World Want to know more about it? Read More

  • T88HS – Palau

    JA6KYU (as T88HS) along with JA6EGL (as T88SM) will be active from the VIP Guest Hotel, Koror, Palau during January 8-14, 2027. QRV on 160-10m; CW, SSB and FT8. QSL via operators instructions. This post appeared first on:​ DX-World Want to know more about it? Read More

  • DX-World Weekly Bulletin

    [#669] The latest FREE NON-SUBSCRIPTION DX-World Weekly Bulletin written by Bjorn ON9CFG is available to download. Click below to get the newest edition which this week runs to 15 pages. Previous bulletins can all be found here. Please contact Bjorn with any updates or errors. DOWNLOAD THE LATEST BULLETIN ===== This post appeared first on:​ DX-World Want to know more about it? Read More

  • SafecomLink Explores Cross-Band Multi-Station Data Exchanges Over HF

    SafecomLink Explores Cross-Band Multi-Station Data Exchanges Over HF

    Read More

    The following is a message from SafecomLink:

    For decades, HF radio ARQ digital modes such as PACTOR has been governed by two “laws” everyone simply accepted:

    ❌ ARQ is point-to-point.
    ❌ Both stations must be on the same band with a viable propagation path.

    BUT what if neither of those limitations were actually true anymore?

    Imagine:

    🔹 A station on 40m having a live ARQ conversation with a station on 20m.
    🔹 Operators on completely different bands exchanging data in real time.
    🔹 Three, four, or even more stations participating in an error-free ARQ live chat.
    🔹 An HF network where propagation barriers become routing opportunities instead of dead ends.

    This isn’t a future concept.
    It’s already happening!

    The SafecomLink Cluster for PACTOR introduces something that has never existed before in HF ARQ data communications: a shared “”connected brain”” that bridges multiple independent nodes into a single intelligent system.

    The result is a capability that fundamentally changes how we think about HF data networks.

    🔴 Is it a repeater?
    🔴 A router?
    🔴 A bridge?
    🔴 Or something entirely new?

    We recently documented the concept, architecture, and real-world use cases in a short case study.

    If you’re involved in HF digital communications, emergency communications, Pactor, Winlink, or simply enjoy seeing old limitations challenged, this may be worth 5 minutes of your time.

    Read the full article below and tell me:

    What would YOU build if HF Radio ARQ digital mode was no longer limited to a single band and a single peer? 🚀

    Link to the case-study: https://www.safecomlink.com/post/safecomlink-case-study-cluster

    Source: SafecomLink

    ​ Amateur Radio Daily

  • VIDEO – ZS8W Marion Island

    At the end of April 2025, Yuris YL2GM was active from Marion Island as ZS8W. The DXpedition was fully documented here often with breaking news items. Today, Yuris sends DX-World a video depicting the story of his activity, voiced over by his daughter, Liva. Congrats on a great DXpedition, Yuris.   This post appeared first on:​ DX-World Want to know more about it? Read More

  • S79/OL1T – Seychelles

    Rudi, OK2ZA and David, OK6DJ will be active from the Seychelles as S79/OL1T during December 28, 2026 to January 8, 2027. QRV on various bands and modes. Full details to follow in coming months. QSL via LoTW. Logsearch / OQRS here. This post appeared first on:​ DX-World Want to know more about it? Read More