Thinking Day on the Air

World Thinking Day is organised by World Association of Girl Guides and Girl Scouts on the third full weekend in February. The founder of the Guide movement, Lord Baden-Powell, and his wife, Lady Baden-Powell, the World Chief Guide both celebrated their birthday on 22 February, which is now known to all Guides as Thinking Day.

The aim of Thinking Day on the Air (TDOTA) is to encourage Girlguiding members to make friendships with those in other units, using amateur radio as the means of communication.

TDOTA stations are mostly set up by experienced radio amateurs who voluntarily work to support TDOTA. The positive effects of the event are shown in the increasing numbers of Girlguiding leaders and members with amateur radio licences.

TDOTA 2026

Girl Guides and Scouts across the globe will be celebrating 100 years of World Thinking Day on Sunday 22 February.

What will you be doing to help them celebrate? You could put on a special event station with a call sign that reflects this centenary. Let the RSGB know your plans so it can help to promote the event and share a list of stations that will be active over the weekend. Send details of your activity to comms@rsgb.org.uk

List of stations active for TDOTA 2026: 

• Milton Keynes Girlguiding – will be operating special event station GB100MKG from 11:00 on Saturday 21 February throughout the day.  Two stations will be in operation running primarily on 40m/17m/15m and QO-100 using SSB.  They will also have FT4/8 available

• Kent North Downs Division of the Girl Guides – celebrating World Thinking Day on the afternoon of Sunday 22 February 2026 using the call sign of GB100GG. Their plan is to be on HF 20/40m

TDOTA 2025

Several UK amateur radio clubs helped their local Girlguiding group get on the air over two February weekends. Thank you to all those who took part, and to those who made contact with the girls.

You’ll find the TDOTA 2025 report in April’s RadCom.