Active BWS Warnings — click to load into form
Alert Parameters
0 areas selected
0 characters · ~0 words · ~0s read time
Live Preview
EAS Audio Sequence
SAME Header (FSK × 3 passes)
~3.0s
Attention Signal (853Hz + 960Hz)
8.0s
Voice Message (Text-to-Speech)
~?s
End of Message (SAME EOM × 3)
~1.5s
Audio status: Ready
Generated SAME Code
ZCZC-BWS-SVW-LON001--+0600-1211200-BWSLONDN- NNNN
SAME = Specific Area Message Encoding · BWS adaptation of the US EAS standard
About BWS EAS
Audio Tones
The BWS EAS uses the US SAME (Specific Area Message Encoding) standard adapted for the UK. The sequence is: SAME header (FSK 1562.5/2083.3 Hz), 8-second attention signal (853+960 Hz dual tone), voice message, and End of Message burst.
SAME Code Format
Format: ZCZC-BWS-EVT-AREACODE+TTTT-JJJHHMM-OFFICEID- followed by NNNN (end of message). Multiple areas are separated by hyphens. Duration is HHMM. Issue time is Julian day + HHMM UTC.
Alert Levels
BWS warnings follow the UK traffic-light system: Red (Danger to life), Amber (Significant disruption), Yellow (Possible disruption). EAS Extreme/Severe correspond to Red/Amber, and Moderate/Minor correspond to Yellow.