So WBZ-FM is now used by Comcast for Emergency alerts

[Sid Schweiger]

"Comcast in Cambridge just had an Energency Alert test and it said messagesent by WBZ-FM at 12:54 AM"

The test was a Required Monthly Test (RMT), which must be relayed within 60 minutes of receiving the test from the station being monitored.  Details can be found in section 11.61 of FCC rules at http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-part11-subpartE.pdf .  Comcast systems within WBZ-FM's signal coverage area are required by MEMA to monitor WBZ-FM for tests and alerts.