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 (Old timey service. Use IDS|DDPLUS instead.) |
| DDS (Old timey service. Use IDS|DDPLUS instead.) | FT1, DOMESTIC | Domestic Data Service |
| HDS | FT2, HRS | High resolution Data Service |
| IDS (Old timey service. Use IDS|DDPLUS instead.) | FT3, INTNL | International Data Service |
| SPARE | FT4 | Reserved for IDD use |
| UNIWISC | FT5, MCIDAS | Satellite imagery and derived products created by Unidata in McIDAS AREA format |
| PCWS | FT6, ACARS | ACARS data from commercial aircraft |
| FSL2 | FT7, PROFILER | Wind profiler data |
| FSL3 | FT8 | Reserved for NOAA/GSL use |
| FSL4 | FT9 | Reserved for NOAA/GSL use |
| FSL5 | FT10 | Reserved for NOAA/GSL 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 and MRMS data |
| LIGHTNING | FT14,NLDN | Lightning data |
| WSI | FT15 | NEXRAD Level-III (NIDS) radar products (Private network: not in the IDD) |
| SATELLITE | FT16 | GOES East & West Satellite imagery in GRB format |
| 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 Fleet Numerical |
| GEM | FT20, CMC | Canadian Meteorological Center GEM model output |
| NIMAGE | FT21, IMAGE | NOAAport satellite imagery and level 2 products |
| 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 |
| NEXRAD3 | FT27, NNEXRAD, NEXRAD | NEXRAD Level-III products |
| NEXRAD2 | FT28, CRAFT, NEXRD2 | NEXRAD Level-II radar data |
| NXRDSRC | FT29 | Used by NCEI for NEXRAD Level-II data archiving |
| EXP | FT30 | For experiments, testing, etc. |
| ANY | FT0 | FT1 | FT2 | ... | FT30 | 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 |
| IDS|DDPLUS | FT0 | FT1 | FT3 | Feed set expression for everything in the IDS and DDPLUS feeds |
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.