To contribute on bad calibrators, you can log in first. By this way you will not have to repeat your name and affiliation in badcal and your account will be usefull for other JMMC webservices.
Please fill your account information bellow or register to get an account.

If you prefer, you can also submit a new bad calibrator without creating any jmmc accout

At the end of the process, you will get one confirmation link sent by email. Just click on it to approve your new submission.