Paul, What you have is OK *if* the intersection of the set of data-products that match "EchoTop_18" and the set of data-products that match "EchoTop_30" is the empty set. > In the ldm documentation: > > The behavior of the LDM > <https://www.unidata.ucar.edu/software/ldm/ldm-current/basics/glindex.html#LDM> > is unspecified if multiple REQUEST entries exist for the same upstream LDM > <https://www.unidata.ucar.edu/software/ldm/ldm-current/basics/glindex.html#upstream%20LDM> > and the feedtype > <https://www.unidata.ucar.edu/software/ldm/ldm-current/basics/glindex.html#feedtype>s > in the entries are not disjoint. > > Does that mean this is incorrect: > > REQUEST EXP "EchoTop_18" > 140.90.98.15 > REQUEST EXP "EchoTop_30" > 140.90.98.15 > > Instead I should be doing: > > REQUEST EXP > "(EchoTop_18)|(EchoTop_30)" > 140.90.98.15 > > -Paul Regards, Steve Emmerson Ticket Details =================== Ticket ID: JYJ-849630 Department: Support LDM Priority: Normal Status: Closed