Seguro que algo de esto viene de los años 80 si mal no recuerdo, yo he conocido las "casetas o cajas naranjas con botones" donde los ubicaban y que generalmente enlazaban con los servicios de proteccion civil de localidad cercana y de ahi que quedaran en esa frecuencia.

cedida por ellos para este uso

¿hay registro documental de esa cesión?

Creo recordar haber leído la misma reseña más arriba adjuntada en la web del gobierno de Aragón. Era una nota de prensa, no el documento de resolución oficial. Todos los que frecuentamos la zona seriamente (tanto trabajadores de todo tipo como montañeros), sabemos que existe este acuerdo. Para los documentos técnico-legales, si te interesa, tendrías que investigar más.

Más info: https://www.fam.es/noticias/2245-frecuencia-de-sos-montana-146-175-mhz-subtono-123-hz-pedir-ayuda-donde-no-hay-cobertura-de-movil

Aun así hay un problema legal. La única forma de usar estos servicios de manera compatible con la legislación es disponer de walkie takies programados con esa frecuencia. Es lo que hace la Federación de Caza. Tienen frecuencias asignadas y puedes comprar talkies programados para ellas.

Haciendo estas cosas a medias lo que consiguen es que la gente compre talkies chinos que no deberían tener autorización de venta y luego den la plasta en otras bandas (incluidas las nuestras).

cedida por ellos para este uso

¿hay registro documental de esa cesión?

pero hay mucho "imbecil" aburrido.

De hecho, una de los parámetros que miden en los servicios 112 son las llamadas que corresponden a asuntos no relacionados con emergencias o bien falsas emergencias.

Se trata de una frecuencia que usaba Protección Civil, y cedida por ellos para este uso.

Más info: https://www.fam.es/noticias/2245-frecuencia-de-sos-montana-146-175-mhz-subtono-123-hz-pedir-ayuda-donde-no-hay-cobertura-de-movil

__________________

Con todo, supongo que el futuro serán las comunicaciones satelitales por VoIP/Internet. Cada vez hay mayor cobertura de Internet satelital a nivel global, con tarifas más y más baratas y accesibles. No creo que sea raro que de aquí a pocos años podamos fácilmente tener un móvil con Internet satelital de modo barato con cobertura prácticamente mundial, de modo que no necesitemos más que vía a cielo abierto para poder enlazar y comunicarnos.

La radio es una muy buena "solucion" pero hay mucho "imbecil" aburrido.

INGLES:

Extreme weather alerts have saved lives on many occasions. Sometimes those warnings have come from a television or a standard radio. Or perhaps through a frantic call from a friend or loved one. Or from a siren.

More often those alerts have come through emergency radios. And they’ve arrived prior to media coverage of weather emergencies. 

Sometimes just those two or three minutes can make the difference between life and death for anyone facing an immediate weather crisis.

NOAA emergency radio

Your best bet with an emergency radio is a National Oceanic and Atmospheric Administration (NOAA) radio.

NOAA is a government-operated administration that sends out broadcasts every five minutes 24/7/365 related to storms. Including tornadoes, hurricanes, and blizzards, as well as solar flares, nukes and other major problems.

Here is a list of NOAA emergency radio frequencies:

• 163.275
• 162.55
• 162.525
• 162.50
• 162.475
• 162.45
• 162.425
• 162.40

 Following is a list of other emergency radio frequencies you may need at one time or another:

• 163.5125 – Military national disaster preparedness frequency
• 163.4875 – National Guard emergency communications frequency
• 156.80 – International maritime distress channel
• 156.75 – International maritime weather alerts
• 155.475 – Emergency communications for police
• 155.160 – Used by various agencies during search and rescue operations
• 154.295 – Used by firefighters during emergencies
• 154.28 – Used by firefighters during emergencies
• 154.265 – Used by firefighters during emergencies
• 138.225 – Disaster relief channel used by FEMA
• 121.50 – International frequency for aeronautical emergencies
• 47.42 – Nationwide Red Cross channel during humanitarian aid missions
• 39.46 – Inter-department emergency communications by police
• 34.90 – Nationwide National Guard frequency during emergencies

CB radio

One way to communicate with family members during an emergency situation when cellphones are not working is through CB (Citizens’ Band) radio.

No license is needed to send or receive communications. Combined with a family disaster plan, it will aid you greatly if cellphone towers stop working.

There are 40 separate channels that CB radios operate on. The only one to avoid is Channel 9, which is reserved for the Emergency/REACT channel.

One thing to keep in mind is that your conversations while using CB radio will not necessarily be secure. Outsiders could be on the same channel at the same time.

Among the other channels are:

• Channel 37 – Unofficial Prepper 37 (USB)
• Channel 36 – Unofficial Survivalist network
• Channel 19 – Used by truckers headed east or west
• Channel 17 – Used by truckers headed north or south
• Channel 13 – Typically used within campgrounds and marine areas
• Channel 4 – Unofficial American Preppers Network
• Channel 3 – Unofficial Prepper CB Network

 Ham radio

You don’t need a license for CB radio usage, but you do need one for ham radios. It’s an effective way to communicate when other sources are down in an emergency. Not to mention a fun hobby.

Ham radio (also called amateur radio) has its advantages over other communication forms, but it requires some study. And you need to pass a license exam.

A total of 26 frequency bands are used for ham radio. It provides long hours of communication during emergency situations.

It can be used for experiments with easy configurations anywhere. And it can be interfaced with computers for data transmission and reception. Believe it or not, ham radio operators can even communicate with astronauts at the space station. 

On the downside, ham radio operations can be affected by weather and terrain conditions. And ham radios require a power source.

Cellphones and weather apps

Simpler but sometimes less reliable ways to receive alerts or communicate during an emergency are cellphones and weather apps. Most cell phones have the Wireless Emergency Alerts (WEA) feature. It sends out a loud tone to warn you of an impending emergency.

These alerts work. Don’t disable them just because the screeching and beeping noises can be annoying. That’s so they will catch your attention. They are designed to only activate phones connected to a local cellphone tower. 

There are a number of weather apps you can download onto your cellphone. They include Storm Shield, iAlert, AccuWeather and The Weather Channel. As well as weatherUSA, ping4alerts! and The Emergency Email & Wireless Network.

With Storm Shield, wherever you are, storm-based alerts are available. It does not use GPS, so it shouldn’t wear down your phone battery. iAlert provides weather warnings via text or email. You can select the alerts you want for any of 30,000-plus U.S. cities.

Ping4alerts! delivers alerts regarding weather, traffic and school closures. Plus natural disasters, power outages and more.    

CASTELLANO (Para los que no dominen el "English"):

Deberiamos mirarnos en USA, que esto lo tienen controlado, por un lado con unos walkies que llevan un receptor que les avisa de las inclemencias y del clima y que es obligatorio llevar. (No sé si el walkie es Private Family Radio o qué)

También tienen una ferrea escucha en el CH 9 de CB, que es una frecuencia buena en montañas y los equipos dan 5W.......

No se necesitan licencias amateur, se necesita inversión de las comunidades autónomas, y voluntad política, por no hablar de los operadores de telefonía....