Communication

The actual communication systems are way less developped than before the cataclysm. Indeed the Bloody Mist stop any atmoshperic way to communicate. Nevertheless, few system are still operationnal.

Consequences of the Bloody Mist
This fog is too dense that any signal would be vanished after few miles. Moreover, an orbiting satellite system would be impossible (cf: Means of transport).

The development of a traditional communications network is impossible because of the conditions. The installation and the maintenance would be too dangerous for workers.

Exisiting system
To communicate, we now use older technologies:

Inside a city, we use traditional telephone line, linked by telephone exchange.

Between cities, few people are in charge of transmitting messages. Only most important informations are exchanged by this way (commercial informations which are not set during the dark age are directly exchanged between traders).