[BC] EAS on HD

[Barry Mishkind]

At 01:10 PM 12/7/2006, Mark Humphrey wrote
>Anyway, here's a question about this directive, which might require
>clarification:  Is it necessary to transmit a different "callsign" in
>the message header sent on secondary channels (for example, WTOP-2  or
>WTOP-HD2) or can they all use the same call as the primary station?

         A very good question, Mark, along with
         the related: how many "HD" receivers
         are there to receive and decode EAS tests/alerts?