The Hiram Percy Maxim Birthday Celebration runs from 31 August to 8 September 2019.
The event commemorates the 150th anniversary of the birth of ARRL co-founder—and first President—Hiram Percy Maxim, W1AW.
The objective is to work as many participating stations as possible.
W1AW and all ARRL members will append /150 to their call signs during this event. Stations will exchange a signal report and their ARRL/RAC section. A total of 84 multipliers are available.
DX stations will send a signal report and the letters DX instead of their section.
All bands except 60, 30, 17, and 12m can be used. Contacts may be made on CW, phone and digital modes.
Incentives are available for using different modes, operating portable, and using social media, among others.
Logs will be scored, and downloadable certificates will be available.
More Information - http://www.arrl.org/hpm150-birthday-celebration