Point of Beginning

SMI Flex GPS System Version 8

March 1, 2005
Eagle Point released SMI Flex GPS System Version 8, featuring a signal-to-noise advantage for reliable masking angles in RTK to 7 degrees and RTG to as low as 5 degrees.

Eagle Point released SMI Flex GPS System Version 8. A signal-to-noise advantage allows for reliable masking angles in RTK to 7 degrees and RTG to as low as 5 degrees. This lower masking angle adds two to three additional satellites the entire day, in addition to better DOPs. Constant integrity checking by both the SMI controller and GPS receiver ensure accuracy. To optimize performance, the new SureNav feature intelligently evaluates all available information including the number and quality of measurements, available correction data and satellite geometry. SureNav decreases outage time in marginal signal conditions by combining all combinations of single- and dual-frequency measurements. For optimal autonomous horizontal accuracy SMI accounts for the ITRF00 (StarFire) and ITRF94/96 (WAAS) offset to the user's current coordinate system, which will produce an autonomous horizontal accuracy of better than 4" StarFire and 2' WAAS. When operating autonomously in StarFire mode, the SMI Flex GPS system will perform real-time corrections for the effects of Solid Earth Tides to improve vertical accuracy. A number of hardware refinements have also been added to both the base and rover solutions: a long range 35-watt radio system (dual high-gain antennas and RF shielding), cellular modems (CDMA/1XRTT/GPRS/GSM/ CDPD), a 400 MHz Allegro CX data collector (128 MB up to 1 GB of storage, 64 MB of RAM), backpack configurations and available Blue-tooth communications. The new GPS functionality is available to existing SMI Flex GPS users by means of a free firmware upgrade and an upgrade to SMI Version 8.0e or greater. (Eagle Point, Dubuque, Iowa)