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NIST Standard Reference Databases: Communicationsold
NIST has developed two databases for testing the interoperability of Automatic Link Establishment High Frequency radios that have been built to the specification of Federal Standards.
The codes in the list below have the following meanings:
| PC | PC product, most available for purchase, some are free |
| Online | Free online system |
| DG | Inclusion in the NIST Data Gateway - a portal providing access to many NIST scientific and technical databases. It is searchable by keyword, property, or substance name. |
| * | Product contains data that have undergone rigorous critical evaluation by experienced researchers who recommend best values. |
| Online Subscription | Product is a yearly subscription web product. |
Special DB 17 NIST Automatic Link Establishment (ALE) Tones, PC, DG
Special DB 21 NIST Automatic Link Establishment (ALE) Degraded Tones, PC, DG