The 432MHz band, on Wednesday it is the 432MHz FT8 Activity Contest, exchange is your report and 4-character locator. A serial number is not required.

Shack The Scout Building, Ballasalla 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