07-24-2023-2356 - Emergency_Broadcast_System DRAFT ; Emergency Action Notification (EAN) via a teletypewriter network ; EAN ; FCC ; X ; BELL ; TEN BELL ; BELL GRAND ; BELL GRADE ; TELETYPE ; WIRE SER ; COPPER ; MACHINE ; CONNECT ; CONNECTION ; CONNECTIVITY ; CONNECTIVATION ; CONNATION ; ATTN SIG ; SYS ; SIN ; 853 YEAR ; 960 HZ ; DECODER ; RELAY ; SOUND ; INCOM MSSG ; BROAD ; BROADBAND ; BROADCAST ; ALERT ; TONE ; REBROADCAST ; PRIM STAT ; 1960 ; GRIGO ; SOV UNION ; RONNIE RADKE USA NAC DOM ; NUC WAR MISHANDLER ; MISSLE BUILDERS ; SECONDARY ; SHELL SWAP ; CONTRAIND FIN ; COMPAT ; COMPACT ; COMPA ; COMP ; 1800 ; MAG FIELD PRINT TRANSPIRATION ; CLOAK ; CLONE ; GUIDE ; WAVEGUIDE ; PIPELINE BUILDERS ; COPPER CABLE ; MEST ; DEEP DRILLER ; DEEP DRILL ; HEAVY INFRASTRUCTURE ; BASE FRAMEWORK ; ONE MAN ; BASELINE AGE ; BASEFRAME ; SQUARE ; USURY ; ETC.. DRAFT

Activation procedure

Actual activations originated with a primary station known as a Common Program Control Station (CPCS-1), which would transmit the Attention Signal (help·info). The Attention Signal most commonly associated with the system was a combination of the sine waves of 853 and 960 Hz‍—‌suited to attention due to its unpleasantness. Decoders at relay stations would sound an alarm, alerting station personnel to the incoming message. Then, each relay station would broadcast the alert tone and rebroadcast the emergency message from the primary station. The Attention Signal was developed in the mid-1960s.

A nationwide activation of the EBS was called an Emergency Action Notification (EAN), and was the only activation that stations were not allowed to ignore; the Federal Communications Commission made local civil emergencies, weather advisories optional (except for stations that agreed to be the "primary" source of such messages).

To activate the EAN protocol, the Associated Press and United Press International wire services would notify stations with a special message. It began with a full line of X's, and a bell inside the Teletype machine would sound ten times. To avoid abuse and mistakes, the message included a confirmation password which changed daily. Stations that subscribed to one of the wire services were not required to activate the EBS if the activation message did not have proper confirmation.^{[citation needed]} 

https://en.wikipedia.org/wiki/Emergency_Broadcast_System

An order to activate the EBS at the national level would have originated with the president and been relayed via the White House Communications Agency duty officer to one of two origination points – either the Aerospace Defense Command (ADC) or the Federal Preparedness Agency (FPA) – as the system stood in 1978. Participating telecommunications common carriers, radio and television networks, the Associated Press, and United Press International would receive and authenticate (by means of code words) an Emergency Action Notification (EAN) via a teletypewriter network designed specifically for this purpose. These recipients would relay the EAN to their subscribers and affiliates.^[1]

^{https://en.wikipedia.org/wiki/Emergency_Broadcast_System}