In open air areas
Orientation in open air areas near public places or in parks, museums, beaches, etc.
In open air areas between buildings or in parks or similar places stationary transmiters can be installed at several locations creating a path through areas of any complexity. User pages the transmiter, which then tells him/her the direction to the next one, then the user pages that transmiter, finds it, gets directions to the next one and so on.
In Moscow the guiding dog school of Allrussia Society of the Blind is equipped with the system.