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 | Reserved for IDD use |
| UNIWISC | FT5, MCIDAS | Satellite imagery and derived products from the Unidata/Wisconsin Broadcast |
| PCWS | FT6, ACARS | ACARS data from commercial aircraft |
| FSL2 | FT7, PROFILER | Wind profiler data |
| FSL3 | FT8 | Reserved for NOAA/GSD use |
| FSL4 | FT9 | Reserved for NOAA/GSD use |
| FSL5 | FT10 | Reserved for NOAA/GSD use |
| GPSSRC | FT11, NMC1, AFOS | SuomiNet GPS data gathering |
| CONDUIT | FT12, NMC2, NCEPH | NCEP high-resolution model output |
| FNEXRAD | FT13, NMC3 | NEXRAD Level-III composites |
| LIGHTNING | FT14,NLDN | Lightning data |
| WSI | FT15 | NEXRAD Level-III (NIDS) radar products and composits from WSI Corporation |
| SATELLITE | FT16 | Stellite imagery |
| FAA604 | FT17, FAA, 604 | FAA604 products for NWS use (private network), but available for IDD use |
| GPS | FT18 | SuomiNet GPS data |
| FNMOC | FT19, SEISMIC, NOGAPS | NOGAPS and COAMP model output from FNMOC |
| GEM | FT20, CMC | Canadian Meteorological Center GEM model output |
| NIMAGE | FT21, IMAGE | NOAAport satellite imagery |
| NTEXT | FT22, TEXT | NOAAport textual products (for future use) |
| NGRID | FT23, GRID | NOAAport high-resolution model output |
| NPOINT | FT24, POINT, NBUFR, BUFR | NOAAport point products (for future use) |
| NGRAPH | FT25, GRAPH | NOAAport Redbook Graphics (for future use) |
| NOTHER | FT26, OTHER | NOAAport miscellaneous products (for future use) |
| NEXRAD3 | FT27, NNEXRAD, NEXRAD | NEXRAD Level-III products |
| NEXRAD2 | FT28, CRAFT, NEXRD2 | NEXRAD Level-II radar data |
| NXRDSRC | FT29 | NCDC NEXRAD Level-II data archiving |
| EXP | FT30 | For experiments, testing, etc. |
| 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 by all LDM versions.