Topcon introduced HiPer Lite+, a completely cable-free RTK GPS+ system. GPS+ is Topcon's advanced dual-constellation satellite tracking-GPS plus GLONASS-currently providing almost 50 percent more satellites than GPS alone. HiPer Lite+ incorporates all features of the standard HiPer Lite including the advanced, internal 915 MHz spread spectrum radio designed specifically for close-proximity GPS+ antenna operation. This eliminates multiple components, connections and external power requirement of traditional GPS base stations while still providing precise measurement up to 1.5 miles away from the base. (Topcon Positioning Systems, Pleasanton, Calif.)