The table below summarizes the current assignments for LDM feed types and feed sets, used in LDM configuration files and in arguments to LDM programs. (A feed set is a union or difference of feed types.)
| Primary Name | Alternate Names* | Description |
|---|---|---|
| PPS | FT0 | Public Products Service |
| DDS | FT1, DOMESTIC | Domestic Data Service |
| HDS | FT2, HRS | High resolution Data Service |
| IDS | FT3, INTNL | International Data Service |
| SPARE | FT4 | Spare, available for IDD use. |
| UNIWISC | MCIDAS, FT5 | Satellite imagery and derived products from the Unidata/Wisconsin Broadcast |
| PCWS | FT6, ACARS | ACARS data, from commercial aircraft |
| FSL2 | FT7, PROFILER | Wind profiler data from FSL |
| FSL3 | FT8 | Reserved for FSL use |
| FSL4 | FT9 | Reserved for FSL use |
| FSL5 | FT10 | Reserved for FSL use |
| AFOS | FT11, NMC1, GPSSRC | National Weather Service AFOS |
| NMC2 | FT12, NCEPH | CONDUIT model data |
| FNEXRAD * | FT13, NMC3 | NOAAPORT NEXRAD Floater |
| NLDN | FT14 | National Lighting Data Network |
| WSI | FT15 | NIDS radar products |
| DIFAX | FT16 | Unidata community-generated replacement for defunct DIFAX feed |
| FAA604 | FT17, FAA, 604 | FAA604 products for NWS use (private network), but available for IDD use. |
| GPS | FT18 | Reserved for use in SuomiNet |
| FNMOC * | FT19, SEISMIC, NOGAPS | NOGAPS and COAMP model data from FNMOC |
| GEM | FT20, CMC | Canadian Meteorological Center GEM model outputs. |
| NIMAGE | FT21, IMAGE | NOAAport imagery (for future use) |
| NTEXT | FT22, TEXT | NOAAport text products (for future use) |
| NGRID | FT23, GRID | NOAAport gridded binary (GRIB, GRID) products (for future use) |
| NPOINT | FT24, POINT, NBUFR, BUFR | Reserved for NOAAport point products (for future use) |
| NGRAPH | FT25, GRAPH | NOAAport Redbook Graphics (for future use) |
| NOTHER | FT26, OTHER | Reserved for other NOAAport data (for future use) |
| NNEXRAD | FT27, NEXRAD | NOAAport NEXRAD |
| NEXRAD2 | FT28, CRAFT, NEXRD2 | Reserved for distribution of NEXRAD Level-II radar data |
| NXRDSRC | FT29 | Reserved for NCDC use for archiving NEXRAD level 2 data. |
| EXP | FT30 | For testing, experiments, and transient or low-interest data streams |
| ANY | FT0 | FT1 | FT2 | ... | FT31 | Predefined feed set name for any feed type |
| NONE | - | Predefined feed set name for no feed types (will not match anything) |
| DDPLUS | FT0 | FT1 | Predefined feed set name for PPS or DDS. |
| WMO | FT0 | FT1 | FT2 | FT3 | Predefined feed set name for PPS, DDS, HDS, or IDS. |
| UNIDATA | FT0 | FT1 | FT2 | FT3 | FT5 | Predefined feed set name for PPS, DDS, HDS, IDS, or UNIWISC. |
| FSL | FT6 | FT7 | FT8 | FT9 | FT10 | Predefined feed set name for PCWS, FSL2, FSL3, FSL4, or FSL5. |
| NMC | FT11 | FT12 | FT13 | Predefined feed set name for AFOS, NMC2, or NMC3. |
| NPORT | FT22 | FT23 | FT24 | FT25 | FT26 | Predefined feed set name for NTEXT, NGRID, NPOINT, NGRAPH, or NOTHER. |
* Note: The alternate names for each feed type are simply aliases and can be used interchangably. However, aliases are introduced in LDM versions over time and therefore not all aliases are known for all LDM versions. In particular: