American Radio Relay League | Ham Radio Association and Resources

1. The K7RA Solar Update

   Solar activity remains quiet, but on May 16 the daily sunspot number reached 212. I had to keep searching further and further back in the records to find a higher sunspot number. One year, six months and one week earlier -- November 9, 2011 -- the sunspot number was almost that high, at 208. Going back seven years, 10 months and 12 days to July 4, 2005, it was 192. To find activity beating the ...

2. No ARRL Audio News on May 30

   There will be no ARRL Audio News on Thursday, May 30. The ARRL Letter will be distributed on its usual schedule. The Audio News will return on Thursday, June 6.

3. Surfin’: Combining Software Defined Radios and Smart Phones

   By Stan Horzepa, WA1LOU
   Contributing Editor

   This week, Surfin’ checks out a ham who is developing a handheld radio that’s a cross between a smart phone and an SDR.

   The Dayton Hamvention® was last weekend and I drove 735 miles to attend the event for the 25th time. Kudos go out to my smart phone and its map apps for getting me to Hamvention and back without error, as well as getting me around those...

4. Technician Class Survivor Challenge

   Now that the Morse code requirement no longer exists, those who held a Technician class license before March 21, 1987, having already passed the General theory exam, can upgrade to General class without further testing

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5. Logbook of The World Reaches 500 Million QSOs