The 432MHz to 245GHz contest runs exchange of signal report, serial number and locator

The 144MHz FT8 Activity Contest the exchange is signal report and your 4-character locator

At the club Shack in Mill Road, Ballasalla, IM9 2EG for directions click the link below https://www.google.com/maps/place/Isle+of+Man+Amateur+Radio+Society+Shack/@54.0987269,-4.6338125,17z/data=!3m1!4b1!4m5!3m4!1s0x48638d7c6d36a705:0x1be1e390ba9d9821!8m2!3d54.0987269!4d-4.6316238

The UK EI Contest Club 80m contest using SSB, the exchange is your 6-character locator.