Button cell battery names are actually codes include the chemistry, shape, diameter and thickness.
CR2032 is C lithium, R round, 20mm diamter, 3.2mm thick
Tonight, we may see a strong geomagnetic storm and auroral visibility extending further equatorward into the central U.S. Let me tell you what is happening, who will see aurora and when, and some tips for catching the aurora tonight! This could potentially be a nice event! ๐งต
Fun fact.
Voyager 1, currently over 15 billions miles away (roughly 2.5 light hours), still operates using 69 KB of memory, 8 track tape and Fortran code written in 1977.
Contests taking place over the next week include:
๐ The RSGB 432MHz FM Activity Contest
๐ The RSGB 432MHz UK Activity Contest
๐ The RSGB Autumn Series Data Contest
๐ The RSGB 70MHz UK Activity Contest
๐ The RSGB 50MHz Affiliated Societies Contest
๐ The Oceania DX CW Contest
๐ The Worked All Germany Contest
For full details visit: rsgb.org/main/gb2rs/contest-โฆ#amateurradio#hamr
Contests coming up over the next week include:
๐ The CQ World Wide DX RTTY Contest
๐ The UK Microwave Group 5.7 and 10GHz Contest
๐ The RSGB 144MHz FT8 Activity four-hour Contest
๐ The RSGB 144MHz FT8 Activity two-hour Contest
๐ The United Kingdom and Ireland Contest Club 80m Contest
๐ The Oceania DX SSB Contest
๐ The RSGB 2.3GHz Trophy Contest
๐ The RSGB 1.2GHz Trophy Contest
๐ The IARU and RSGB 432MHz to 245GHz Contests
๐ The UK Microwave Group 24 to 76GHz Contest
For full details visit: rsgb.org/main/gb2rs/contest-โฆ#amateurradio#hamr
Contests this week include:
๐The RSGB 1.3GHz UK Activity Contest
๐The 70MHz UK Activity Contest
๐The UK Microwave Group 5.7 and 10GHz Contest
For full details visit: rsgb.org/main/gb2rs/contest-โฆ#amateurradio#hamr