[amsat-bb] Missed the last letters of your call on AO-91

On AO-91 I got several calls and one of them called me N9AME then corrected to N7AME.   But you letters at the end of both transmission were marginal and I heard two different call starting with N6Y?? grid DM03. The time was 20:08 +/- 11/23 and right after that KB6A called and I answered. Thanks for your help N7AMEJohn