The GMDX Summer Challenge will takes place over 6 weeks beginning 00:00 on Monday 13th May until 2359 on Sunday 30th June.

The Summer Challenge is a single event using CW, SSB or Digital Modes on both 4m and 6m. GMDX members are expected not to set up FT8 in automated robot mode. You are trusted to operate your station manually.

The overall winner will have worked the most 4 digit maidenhead locator squares (eg IO75) on 4m and 6m to give the highest combined score. DXCC Countries are not counted, only locator squares. In order to have the leading score, it is expected operators would have to make contacts on both 4m and 6m using all modes.

All GMDX members worldwide are welcome to enter.

Submit your entry

Week	6m SSB	6m CW	6m Digital	6m Combined	4m SSB	4m CW	4m Digital	4m Combined
18:00 on Sunday 26th May
18:00 on Sunday 9th June
18:00 on Sunday 23th June
18:00 on Monday 1st July