1.6.4

v.1.6.4

Version 1.6.4. Show/hide O- and X- modes. Checking sunspot number. Ig…

1.6.3

v1.6.3

Version 1.6.3

1.6.2

v1.6.2

Solar number data updated

1.6.1

VISRC2t ionograms support.

1.6

The first public release.