ARRL

Register Account

Login Help

Search for Amateur Radio News

  • Solar Disk

    02/27/2015 | The K7RA Solar Update

    Relatively quiet conditions ahead
    Learn More

  • Solar flare

    02/20/2015 | The K7RA Solar Update

    Average daily solar flux and sunspot numbers were down for the second week in a row.
    Learn More

  • latest011912

    01/20/2012 | The K7RA Solar Update

    New sunspot groups appeared on every day over the past week. On January 12, new sunspot group 1396 appeared, and the next day two more -- 1397 and 1398 -- popped into view. On January 14, four new sunspot groups appeared: 1399, 1400, 1401 and 1402. Januar
    Learn More

  • sunspot031110

    03/12/2010 | The K7RA Solar Update

    We experienced a bit of a scare this week when four days went by without sunspots. That's right -- for the first time in three months, we saw more than a single day with a sunspot number of 0, and that last period was back during November 23-December 8.
    Learn More

EXPLORE ARRL

Instragram     Facebook     Twitter     YouTube     LinkedIn