The Kolida K5 PLUS RTK GNSS receiver is equipped with a Trimble BD970 GNSS board that supports 220 channels. It has a dual battery hot-swappable system. In difficult environment you may lost connection with base station or VRS network. Don’t be disappointed, you can choose from 3 creative work modes to continue surveying without interruption. (Repeater/ Router/ Mobile Reference Station) SDL400 built-in radio can send signal as far as 7 km in urban area, 8 km in suburban. The maximum coverage is up to 200 sq.km, suitable to have multiple rovers work simultaneously. SDL400 built-in radio features anti-interference capability, so K5plus+ can work close to power plant, transformer substation, mobile signal tower and other interference source. To improve the performance in city survey, R&D team upgraded the network module from 3G to 4G. Under 4G mobile network, data transmission is faster and more stable. SUPER RTK is still compatible with 3G and 2G. See what others can’t. K5plus+ employs Linux system, it helps surveyors to accomplish their missions easier, faster and more accurate by delivering exceptional quality and innovative features.