DGPS MAX

Refer to Appendix C for further information on activating anOmniSTAR subscription within your DGPS MAX receiverThe GPS engine of the internal SLX receiver provides highperformance positioning for a variety of markets. This design iscapable of providing up to 5 Hz position output with an accuracy ofless than 1.2 m 95% confidence.The SLX receiver inside the DGPS MAX features a built-in WAASdemodulator that provides free access to this service. The WAASengine decodes the WAAS signal and localizes the wide-areacorrection data for use at the current location. Operation of the WAASreceiver is fully automatic, requiring no operator intervention.The MAX’s internal L-band differential satellite receiver features anauto-scanning mode where it will reacquire a valid signal if the currentone becomes unavailable. The L-band DGPS receiver generatesVirtual Base Station GPS corrections by localizing the wide-area datausing position input from the GPS receiver inside the DGPS MAX.The beacon receiver embedded within the DGPS MAX is CSIWireless’s SBX dual channel, minimum shift keying (MSK),demodulator. It receives GPS correction information broadcast bymedium frequency DGPS radiobeacons. The SBX passes thesecorrections to the internal GPS engine that computes DGPS positions.CSI Wireless’s web site at www.csi-wireless.com provides currentDGPS radiobeacon coverage and site information. This receiveroperates automatically by default, however, an option is available totune this engine manually.The 2-line by 16-character liquid crystal display (LCD) and menusystem provide access to all three internal sensors. The DGPS MAXuses a 3-button keypad for menu system navigation. The menusystem allows you to operate each internal sensor and monitor signalstatus.DGPS MAX Reference Manual 20