+$duplth = 20; # the length of text to use in the deduping
+$dupage = 12*3600; # the length of time to hold spot dups
+
+$dirprefix = "$main::data/wwv";
+$param = "$dirprefix/param";
+
+$filterdef = bless ([
+ # tag, sort, field, priv, special parser
+ ['by', 'c', 7],
+ ['origin', 'c', 8],
+ ['channel', 'c', 9],
+ ['by_dxcc', 'nc', 10],
+ ['by_itu', 'ni', 11],
+ ['by_zone', 'nz', 12],
+ ['origin_dxcc', 'nc', 13],
+ ['origin_itu', 'ni', 14],
+ ['origin_zone', 'nz', 15],
+ ], 'Filter::Cmd');