ROGER GPS L1/L2 repeater operates by receiving GPS L1/L2 satellite signals with an antenna located outside the building and re-radiating the signals to the indoor area or covered space.
Use of re-radiated signals means that GPS L1/L2 receiver is tracking the current GPS status meaning that when a GPS receiver is moved from covered area to outdoors, the receiver is instantly tracking the location instead of time consuming acquisition of GPS data.