Operator Name. (Required) Delta Tango Callsign. (Required) Email. (Required) Address (Required) Any updates needed to your online group PDF Directory The renewal date starts every year on the 27th of October and Ends at the end of November you can lose your unit number. We appreciate your Membership Renewal Thank you for being part of the Delta Tango International DX Group Have you read & understood the criteria of the Delta Tango International Dx Group which are clearly displayed on the requirements page Delta Tango International Dx Group P.O. Box 1451, Preston, PR2 0DA, Lancashire, England