Carlson and Delta V. Innovations offer the most robust and rugged GPS and mapping software solutions on the market. Designed by investigators for investigators, CSI Mobile field mapping software is easy to use and reliable. This package is a new BRx7 GPS receiver, RT4+ data collector with keyboard, 8 ft telescoping rod, rugged mount and CSI Mobile v7.0. The BRx7 is the industry leading receiver, with worldwide users, which is capable of maintaining a fixed position where the other big company's solutions cannot. The BRx7 can be used as a rover for collecting your field data or as a base for your RTK drone. Carlson offers a subscription correction service guaranteed to be up over 99% of the time for a price lower than the other guys. This subscription can be added at an additional charge, or the user can choose other correction options of their own. Shipping and handling will be calculated into the final price.