Abstract: The present solution defines groups of users with mobile devices that will be used for the outdoor activity. A group of users may defined with mobile computing devices capable of sending and receiving certain data via radio waves. Each of these devices is equipped with at least one button which can be pressed to invoke the grouping process. One additional mobile computing device capable of sending and receiving information via radio waves and able to receive and store information from any of the mobile computing devices, store these, allow any of the same computing devices to retrieve this information and able to send such information to one or mobile computing devices in such a way that the information arrives at the mobile computing devices via radio waves.

Abstract: The present solution is directed to establishing a group server for a group of mobile devices comprising a private mobile radio module. Each of the mobile devices of a group may have a private mobile radio module. A modular server unit detachable from and interfaced to a mobile device of the group is activated as a group server responsive to detaching the modular server unit from the mobile device. The modular server unit may include the private mobile radio which may be deactivated responsive to activating the modular server unit. The modular server unit may receive data from a plurality of mobile devices of the group of mobile devices and process the received data to consolidate the data. The modular server unit may transmit the consolidated data to each of the group's mobile devices.