Östersund concentrated to the shopping and pedestrian street Prästgatan where large local shopping malls such as "Kärnan" and "Mittpunkten" along with department stores such as Åhléns are located. Large clothing companies such as H&M, Lindex and smaller like WESC, approximately 50 restaurants, shoe stores, sporting goods retailers like Stadium and Intersport, several supermarkets (Östersund has rather few convenience stores), etc. Storgatan, the street that runs parallel with Prästgatan is also lined with shops, restaurants and coffeehouses. Unlike Prästgatan this street is not a pedestrian street. Östersund is the city in Sweden with the most square metres of window display per capita.
ATSC-M/H allows SFN transmissions. To allow regular channel approximation, ATSC-M/H provides additional training sequences. ATSC A/110 defines a method to synchronize the ATSC modulator as part of the transmitter. The A/110 standard sets up the Trellis coder in a pre-calculated way to all transmitters of the SFN. In such an SFN, the ATSC-M/H multiplexer and the ATSC-M/H transmitter are synchronized by a GPS reference. The ATSC-M/H multiplexer operates as a network adapter and inserts time stamps in the MPEG transport stream. The transmitter analyzes the time stamp, delays the transport stream before it is modulated and transmitted. Eventually, all SFN transmitters