In their infinite wisdom, of course, the great white fathers in Washington decreed that NWR would operate on a frequency band that was unreachable with an ordinary radio. Instead, the users have to buy a special radio. But let's assume that those with a real need would have taken the time to find out about it and pay the modest price for a specialty radio. Perhaps emergency managers, farmers, or whatever fall into this category. Some might need the climatological data, some might need severe weather warnings, some might need hourly weather observations, some might need forecasts, etc.
Someone records a batch of stuff onto a cassette and inserts it in the sequencer.
The system cycles through the cassettes over and over, with new information simply being inserted somewhere in the sequence and old information on cassettes being pulled and recycled. If a user switches on the radio anywhere in the sequence, the system eventually cycles around to repeat what that user may have missed . . . unless that information got pulled before the cycle returns to it. In order for this system to work effectively, the cycle certainly can't be too long. A user might get frustrated by having to wait for the sequence to recycle, and just bail out. This puts some significant constraints on how much information can be disseminated this way.