ARRL

Search for Amateur Radio News

  • latest020813

    02/08/2013 | The K7RA Solar Update

    The average daily sunspot numbers hardly changed from last week and the week prior, but the average daily solar flux bounced back to about the level it was from two weeks ago: The average daily sunspot numbers were down 5 points to 50.7, while the average
    Learn More

  • latest020113.jpg

    02/01/2013 | The K7RA Solar Update

    Both the sunspot numbers and the solar flux barely changed in the past week: The average daily sunspot numbers were 55.7, down slightly from 56.4 the previous week, while the average daily solar flux was 98.7, down from 110.7.
    Learn More

  • latest012513

    01/25/2013 | The K7RA Solar Update

    The average daily sunspot numbers this past week dropped nearly 73 points to 56.4, while the average daily solar flux declined nearly 47 points to 110.7. The average geomagnetic indices were up about 50 percent, but it was still very quiet.
    Learn More

  • latest011713

    01/18/2013 | The K7RA Solar Update

    Solar activity pulled back over the past week, following a stellar performance in the week prior. The average daily sunspot numbers were down 34.3 points to 129, but the average daily solar flux actually rose 9.7 points to 157.4.
    Learn More

  • February2013QST-digital.jpg

    01/15/2013 | Digital Edition of February QST Now Available

    The digital version of the February QST is now available to ARRL members. The digital version includes many features not available in the print version.
    Learn More

  • latest011013

    01/11/2013 | The K7RA Solar Update

    After last week’s somewhat downbeat look at sunspot cycles -- current, past and future -- we sure have some great activity to report this week: The average daily sunspot number more than doubled in the past week, rising nearly 93 points to 163.3, while th
    Learn More

  • latest010413.jpg

    01/04/2013 | The K7RA Solar Update

    The New Year brings dreams of solar cycles of old, so distant now, sweetly remembered for their profusion of sunspots. We hear many times from operators who became licensed as teenagers at the peak of Solar Cycle 19, in the late 1950s, when a few watts an
    Learn More

  • latest123012.jpg

    12/30/2012 | The K7RA Solar Update

    The average daily solar flux was down this week about 4 points to 113.4, while the average daily sunspot numbers were down 6.7 points to 65.4. The geomagnetic indices were very low and stable, which should please 160 meter operators who are also enjoying
    Learn More