Originally Posted by MikeOxlong
I'm not sure we're talking about the same thing.
1050hz is the tone sent out by the NWS for weather alerts.
1050 hz is also the frequency of one of the standard alert tones built into most dispatch consoles. Dispatchers can send the tone out prior to an important announcement. It's not a programmed, fixed time tone, but more just to catch people's attention. Every console I ever used had an alert tone button right next to the transmit button.
Just to be clear, this is not a Quick Call II paging tone, at least when used by dispatchers as a "heads up" tone.