Many thanks for the suggestions. I re-entered the QSO with the time 1 minute off, and all other details as the existing record, Dxbase recognized it as it as valid, I deleted the original and then altered the time. No invalid flags and NA013 showing up as it should do. No idea what happened here but alls well that ends well.
The H74 prefix is recognized by Dxbase as an alternative to YN, this was a IOTA Dxpedition back in May this year. Thanks again for the helpful suggestions 73's Mal G4KFT --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.554 / Virus Database: 346 - Release Date: 20/12/2003
