五则三级

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                ?????????? > ??????? > ????????? > ?????? > r330
                ?????????????-R330
                ???????R330
                R330 ???????????GNSS?????????????R330 ??????????????????????????? RTK?????????????????????? SBAS???????????????????????????

                R330 GNSS?????

                ????R330 GNSS??????????????????????????R330????????????????Hemisphere GNSS?????Eclipse™????GNSS??????R330???????????????????????????RTK??Atlas L-band???????Atlas Basic??H30??H10????????SBAS????????????????????DGNSS????????????

                ????R330 GNSS??????????????????????????????????????????L1,10Hz??SBAS????????????????????????L1/L2 GNSS??20Hz??RTK??L-band ??????????R330?????GNSS???? ????A21??A25??A31??A42??A43??A45??A52??

                ????R330 GNSS????????Athena????????GNSS??????Atlas????GNSS??????????????L-band?????????????Athena???????????????????????????????????????????????

                R330 GNSS??????????????
                ?? ???? Athena™ GNSS ?????????????????????????????????????????????
                ?? ??? RTK??????Atlas?????????? L-band ????????????????????
                ?? ?????????????20Hz???????????????????????
                ?? LED??????????? R330 ?????????????
                ?? ????? USB ??????????????????
                ?? ?????????????RTK???
                ?? ??????????????????????????????????????????????
                ?? ?????????USB???????????????

                GNSS???????
                ???????? GNSS L1/L2??RTK???????
                ??????????? GPS??GLONASS????????Galileo ?? Atlas
                SBAS???? 3???????????
                ????????? 10Hz ?????20Hz ?????
                ??????   ????RMS?? ?????RMS??
                ???? 1.2m 2.5m
                DGNSS 0.3m 0.6m
                SBAS 0.3m 0.6m
                RTK 10mm+1ppm 20mm+1ppm
                ??????
                4cm(RMS) ???H10????
                15cm(RMS) ???H30????
                25cm(RMS) ???Atlas Basic????
                ?????? SBAS, ???, ??RTCM, Atlas(L-Band)??RTK
                L-Band???????
                ? ?? ?? ?????
                ???? 1525 - 1560MHz
                Beacon???????
                ? ?? ?? 2???????????
                ???? 283.5 - 325.0kHz
                ?????
                ?????? ???? 2??????RS 232 ???
                USB 1??UBS device, 1??USB HOST
                ?? ?? ?? 4800??115200bps
                ????? RTCM SC-104??L-Dif™??RTCM v2??DGPS????RTCM v3
                ??RTK????CMR??RTK????CMR+??RTK??
                ?????? NMEA0183??Crescent??????
                ???????
                ??????? 8 - 36VDC
                ???????? 4.0W
                ???????? 0.29A
                ??????? 5VDC
                ???????
                ??????? -30??C ~ +70??C
                ???? -40??C ~ +85??C
                ?????
                ??????? 17.8L x 12.0W x 4.6H??cm??
                ??????? 0.65kg
                ????????? 2?????ODU
                ?????????? TNC???????