Hi Bill, I'm not sure what you mean by "ZCZC", "ZCCZ", or "NNNN". What are they? pqing(1) is designed to read WMO bulletins from a serial port; such bulletins start with the sequence "SOH CR CR LF nnn" and end with the sequence "CR CR LF ETX". More information on this can be found at <http://www.nws.noaa.gov/tg/head.php>. Regards, Steve Emmerson Ticket Details =================== Ticket ID: NDL-140188 Department: Support LDM Priority: Normal Status: Closed