During 2012 London hosted the Olympic and Paralympic Games.
Ofcom authorised the use of a special prefix character O throughout the period to celebrate this.
In total 925 QSOs were made, mostly CW, and all QSOs were sent a special QSL card. Logs are also on Clublog and LoTW.
![MO0PCB QSL card](https://www.m0pcb.co.uk/wp-content/uploads/2010/09/mo0pcb.jpg)