DESCRIPTION ProMark 220 is the most cost-effective dual-frequency network RTK rover. ProMark 220 solution includes a rugged GNSS handheld receiver running Windows Embedded Handheld 6.5 operating system, the comprehensive Survey Pro or FAST Survey field software and the ASH-661 (L1/L2 GNSS) antenna. Advanced GNSS Solution ProMark 220 is the most cost-effective dual-frequency, all-in-view network RTK rover. Thanks to the Z-Blade GNSS centric technology, ProMark 220 makes optimal use of all GNSS signals to deliver fast and stable RTK positions even when GPS coverage is insufficient but other constellations like GLONASS are visible. Designed For Efficient Network RTK Very lightweight, with a compact and rugged design, a large memory and autonomy, ProMark 220 has been designed for a confortable and productive field use. Built-in wireless connectivity and embedded GSM/GPRS modem make ProMark 220 a powerful solution suitable for any network RTK application. Best Value For A High-End Survey Solution ProMark 220 is extremely cost-effective, meeting the most demanding requirements for a high-end survey solution. Together with Survey Pro or FAST Survey field software, it enables interoperability with a wide range of survey instruments and accessories to run complete survey jobs, including site calibration, stake out, and survey projects where total stations are used.