[gembud] RTMA Grib

greetings gembuds.
anybody else using dcgrib2 to convert the RTMA to gem?
looks as if there is an error in the header, or I'm screwing something up
here is a snippet of the GDINFO

GRID FILE: /usr/local/ldm/data/text/gempak/model/rtma/2011080604_rtma.gem

    PROJECTION:          MER
    ANGLES:                 0.0     0.0     0.0
    GRID SIZE:          177 129
    LL CORNER:              16.83    -68.20
    UR CORNER:              19.75    -63.97

and in my LDM pqact.conf

NGRID   ^L...98 .... .*RTMA
       pipe    decoders/dc/dcgrib2
       -e GEMTBL=/usr/local/ldm/nawips/gempak/tables

that is a horribly small area to map ...

anybody got suggestions ???