Emergency Digital Information Service (EDIS)

[olg]

Does the California EDIS system still exist? If not, is there any replacement? Was the satellite part ever implemented?

The current California Emergency Alert plan (edited 2017) refers to a digital alert system

Emergency Digital Information Service (EDIS) The Emergency Digital Information Service (EDIS) is a statewide alerting system that allows authorized emergency managers to transmit detailed information to news media outlets to include streamed audio and pictures. The system integrates seamlessly into various communication systems throughout the state. EDIS is maintained by the Governor’s Office of Emergency Services and provides this service without charge to local, state and federal agencies serving in California. For more information on EDIS refer to Appendix XVII.

Wikipedia says it uses 37.0200 MHz and 37.3800 MHz and satellite, but the links are dead.

Some further information:

California has enhanced its emergency information dissemination capability with digital communications techniques. It is called EDIS -- the Emergency Digital Information Service. Borne out of the impetus created by the Loma Prieta earthquake, EDIS is a very inexpensive way to provide a hard copy printout of emergency information bulletins from the National Weather Service, the River Forecast Center, the U.S. Geological Survey, the National Earthquake Information Center (in Golden, CO), the U. S. Forest Service and the State Office of Emergency Services. All a broadcast station or other site requires is a radio receiver, a "dumb" (terminal Node controller) terminal or computer, and a printer. All messages are transmitted over a 100-mile radius from Northern California's Mt. Diablo in the "ANPA 1312" standard for high speed news Data services recommended by the Radio-Television News Directors Association. Each message in the ANPA format includes standardized codes to identify its source, urgency, type, length and destination. All messages including the phrases "EBS ACTIVATION REQUESTED" or "IMMEDIATE BROADCAST REQUESTED" are marked with a special selector code for special handling by the receiving computers. EDIS serves the greater LOS Angeles area through the cooperation of ENN -- the Electronic News Network. This area is served by transmitters on Mt. Wilson. San Diego is served from Mt. Palomar.

According to the referenced documents, radio stations had a special receiver to get the messages in text form, instead of the voice only EAS messages.

 

[ke6gcv]

I know for Sacramento, Yolo, and Placer counties, we use Everbridge.

 

[kevinparrish]

Hello,

In the late 1980s' television broadcasters in the San Francisco Bay Area established a wide-area "EDIS" notification 2-way radio system with a repeater located atop Mt. Diablo. . . The dedicated Remote-Broadcast Pickup Radio Service frequency was and may still be active on 450.0375 MHz.

KP

 

[olg]

Interesting. The license is still current as an Broadcast Auxiliary Remote Pickup on Mt. Diablo.

System Maintenance

Our system is undergoing maintenance upgrades to ensure optimal performance, reliability, and security. During this period, there may be a temporary disruption in service. We apologize for any inconvenience this may cause and appreciate your patience.

wireless2.fcc.gov

37.020 and 37.380 are licensed to the State of California as public safety frequencies, first seems to be mainly mobile licenses, and the 2nd one has a couple of fixed transmitters.