Check out our Trading Post page. For example, a department store may operate handheld walkie-talkies on Some jurisdictions require that all systems move to a "narrowband" configuration, using Further, the APRS channel is a resource to inform everyone of nearby ham resources in range. This strategy allows the receiver to turn off for a considerable percentage of the time as it only needs to listen to the pair that applies to it, thus saving a significant amount of battery power.
Please see the Local Info Initiative. Retrieved It is a two-way tactical real-time digital communications system between all assets in a network sharing information about everything going on in the local area.