[BC] Two tones

[towers at mre.com]

We all still do.  It's in Part 11 than all messages other than RWT include
use of the "two-tone attenion" system.

 > Query:
 >
 > I know SOME stations are also including the older EAS dual-tone
 > attention signal at least for actual events....
 >
 > Since its purpose is to call ATTENTION to the message that follows, it
 > would seem that the downstream stations (no other station monitors them)
 > could use at least the shortened version of those tones to herald Very
 > Important Messages...
 >
 > How many stations DO still use the 2-tone attention signal?