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	Enter your DATA file	Now accepting RINEX and selected receiver formats. Data files may also be compressed (.ZIP, .zip, .Z, .gz)
3.	NONE                 no antenna selected - see FAQ #6    AOAD/M_B             Dorne Margolin B, chokerings (Rogue)      AOAD/M_R             Dorne Margolin R, chokerings (Rogue,JPL)  AOAD/M_T             Dorne Margolin T, chokerings (TurboRogue) AOAD/M_TA_NGS        Dorne Margolin T,chokerings,Ashtech LNA   AOARASCAL            Rascal RTK                                AERAT2775_41         Aviation L1/L2                            AERAT2775_42                    Geodetic L1/L2                 AERAT2775_43         Choke Ring Geodetic L1/L2                 AERAT2775_43    SPKE Choke Ring Geodetic L1/L2 + radome        AERAT2775_62         L1/L2                                     AERAT2775_160        L1/L2                                     ASH110454            ProMark2   L1                             ASH700228A           Geodetic L1/L2, 8 holes, bubble,compass   ASH700228B           Geodetic L1/L2, 8 holes, bubble,compass   ASH700228C           Geodetic L1/L2, 8 holes,no bubble,compass ASH700228D           Geodetic L1/L2, REV.B, 8 L-shaped notches ASH700228E           Geodetic L1/L2, REV.B, 8 L-shaped notches ASH700700.A          Marine L1/L2                              ASH700700.B          Marine L1/L2                              ASH700700.C          Marine L1/L2                              ASH700718A           Geodetic III 'Whopper', REV. D            ASH700718B           Geodetic III 'Whopper', REV. D            ASH700829.2     SNOW Geodetic III 'Whopper' (USCG) +radome     ASH700829.3     SNOW Geodetic III 'Whopper' (USCG) +radome     ASH700829.A     SNOW Geodetic III 'Whopper' (USCG) +radome     ASH700829.A1    SNOW Geodetic III 'Whopper' (USCG) +radome     ASH700936A_M         D/M element, milled chokerings, -radome   ASH700936B_M         D/M element, milled chokerings, -radome   ASH700936C_M         D/M element, milled chokerings, -radome   ASH700936D_M         D/M element, milled chokerings, -radome   ASH700936E           D/M element, REV E, chokerings, -radome   ASH700936E_C         D/M, chokerings, 700936.02 REV E, SCIGN   ASH700936A_M    SNOW D/M element, milled chokerings, +radome   ASH700936B_M    SNOW D/M element, milled chokerings, +radome   ASH700936C_M    SNOW D/M element, milled chokerings, +radome   ASH700936D_M    SNOW D/M element, milled chokerings, +radome   ASH700936D_M    SCIS D/M element, milled chokerings, +radome   ASH700936E_C    SNOW D/M element, cast, chokerings, +radome    ASH701008.01B        Geodetic IIIA, P/N:701008-01(B)           ASH701073.1          GPS/GLONASS,REV.1,chokerings              ASH701073.3          GPS/GLONASS,REV.3,chokerings              ASH701933A_M         D/M element,REV.A,chokerings,H2Otight     ASH701933B_M         D/M element,REV.B,chokerings,H2Otight     ASH701933C_M         D/M element,REV.C,chokerings,H2Otight     ASH701933A_M    SNOW D/M element,REV.A,chokering,H2Otight,rd   ASH701933B_M    SNOW D/M element,REV.B,chokering,H20tight,rd   ASH701933C_M    SNOW D/M element,REV.C,chokering,H20tight,rd   ASH701941.1          D/M element,REV.1,chokerings,GPS+GLONASS  ASH701941.2          D/M element,REV.2,chokerings,GPS+GLONASS  ASH701941.A          D/M element,REV.A,chokerings,GPS+GLONASS  ASH701941.B          D/M element,REV.B,chokerings,GPS+GLONASS  ASH701945B_M         D/M element,REV.B,chokering               ASH701945C_M         D/M element,REV.C,chokering               ASH701945D_M         D/M element,REV.D,chokering               ASH701945E_M         D/M element,REV.E,chokering               ASH701945B_M    SCIS D/M element,REV.B,chokering with radome   ASH701945B_M    SCIT D/M element,REV.B,chokering with radome   ASH701945B_M    SNOW D/M element,REV.B,chokering with radome   ASH701945C_M    SNOW D/M element,REV.C,chokering with radome   ASH701945D_M    SNOW D/M element,REV.D,chokering with radome   ASH701945E_M    SNOW D/M element,REV.E,chokering with radome   ASH701946.2          D/M element,REV.2,chokerings,GPS+GLONASS  ASH701946.3          D/M element,REV.3,chokerings,GPS+GLONASS  ASH701975.01A        Geodetic IV, Rev.A                        ASH701975.01B        Geodetic IV, Rev.B                        ASH701975.01A+GP     Geodetic IV, Rev.A with groundplane       ASH701975.01B+GP     Geodetic IV, Rev.B with groundplane       JPSLEGANT_E          Legant on flat groundplane, External      JPSMARANT_GGD        Javad Marant                              JPSODYSSEY_I         Integrated Antenna/Receiver               JPSREGANT_SD_E       Regant single depth chokerings, External  JPSREGANT_DD_E       Regant dual depth chokerings, External    LEIAT202-GP          External micropulse L1/L2 -groundplane    LEIAT302-GP          External micropulse L1/L2 -groundplane    LEIAT303        LEIC Micropulse chokering antenna +radome      LEIAT303             Micropulse chokering antenna -radome      LEIAT502             Aero element L1/L2, External              LEIAT503        LEIC Micropulse chokering antenna +radome      LEIAT503             Micropulse chokering antenna -radome      LEIAT504        LEIS D/M element, chokerings, +radome          LEIAT504             D/M element, chokerings, -radome          LEIAX1202            Leica AX1202                              LEISR299_INT         SR299, Internal with Ball element L1/L2   LEISR399_INT         SR399 Internal Mod. Mount Design L1/L2    LEISR399_INTA        SR399, Internal with Ball element L1/L2   MAC4647942      MMAC Macrometer crossed-dipole, +radome        MAG105645            L1/L2 GPS                                 MPL1230              L1/L2 Surveying, Choke Ring               MPL1370W             L1                                        MPL_WAAS_2224NW      WAAS Unit 2224NW                          NAVAN2004T           Quad Feed, Dipole                         NAVAN2008T           Airborne Applications Dipole              NAVSF2040G           GIS Sensor Antenna+Receiver               NAVRT3010S           RTK GPS Antenna+Receiver                  NOV501               GPS-501 L1                                NOV501+CR            GPS-501 L1, chokerings                    NOV502               GPS-502 L1/L2                             NOV502+CR            GPS-502 L1/L2, chokerings                 NOV503+CR            GPS-503 L1/L2, chokerings                 NOV503+CR       SPKE GPS-503 L1/L2, chokerings,radome          NOV512               Aviation L1/L2                            NOV531               GPS-531 L1                                NOV531+CR            GPS-531 L1, chokerings                    NOV600               GPS-600 L1/L2                             NOV_WAAS_600         WAAS Antenna with Novatel Element         NOV702_2.02          GPS-702 Rev. 2.02 L1/L2                   SEN67157514          L1/L2, P/N:S67-1575-14 (+26dB amp)        SEN67157514+CR       L1/L2, P/N:S67-1575-14, (+26dB amp), +cr  SEN67157549          L1, P/N:S67-1575-49                       SEN67157549+CR       L1, P/N:S67-1575-49, +chokerings          SEN67157596          L1/L2, PN:S67-1575-96                     SEN67157596+CR       L1/L2, PN:S67-1575-96, +chokerings        SOKA110              L1                                        SOKA120              L1/L2                                     SOK502               L1/L2 GPS                                 SOK600               L1/L2 GPS (Pinwheel Technology)           SOK_RADIAN_IS        Sokkia Radian IS                          SOKSTRATUS           Receiver + L1 Antenna                     SPP571212238+GP      groundplane                               SPP571908273+CR      chokerings, oblong antenna element        SPP571908273+CR SPKE chokerings, oblong antenna element, +rd   TOP72110             D/M element (used with Turbo-SII)         TPSCR3_GGD           Choke Ring                                TPSCR3_GGD      CONE Choke Ring with Radome                    TPSCR4               Choke Ring                                TPSCR4          CONE Choke Ring with radome                    TPSHIPER_GD          Integrated Antenna/Receiver               TPSHIPER_GGD         Integrated Antenna/Receiver GPS/GLONASS   TPSHIPER_LITE        Antenna/Receiver with Wireless Modem      TPSHIPER_PLUS        Antenna/Receiver with Wireless Modem      TPSLEGANT_G          L1                                        TPSLEGANT2           L1/L2                                     TPSLEGANT3_UHF       Legant 3 with UHF Antenna                 TPSODYSSEY_I         Integrated Antenna/Receiver               TPSPG_A1             L1/L2                                     TRM14532.00          4000ST L1/L2 Geodetic                     TRM14532.10          4000SSE Kin L1/L2                         TRM22020.00+GP       Geodetic L1/L2 compact +groundplane       TRM22020.00-GP       Geodetic L1/L2 compact -groundplane       TRM27947.00-GP       Rugged L1/L2 -groundplane                 TRM27947.00+GP       Rugged L1/L2 +groundplane                 TRM23903.00          Permanent L1/L2                           TRM29659.00          D/M element, chokerings, -radome          TRM29659.00     UNAV D/M element, chokerings, radome           TRM33429.00+GP       L1/L2 microcentered Geodetic +GP          TRM33429.00-GP       L1/L2 microcentered Geodetic -GP          TRM33429.20+GP       L1/L2 microcentered Geodetic +GP          TRM33429.20+GP  TCWD L1/L2 microcentered Geodetic +GP          TRM33429.20+GP  UNAV L1/L2 microcentered Geodetic +GP          TRM36569.00+GP       13" microcentered +GP                     TRM39105.00          Trimble Zephyr without Ground Plane       TRM41249.00          Trimble Zephyr Geodetic with GP           TRM41249.00     TZGD Trimble Zephyr Geodetic with GP/Radome    TRM4800              Receiver+Internal microcentered antenna   TRM5800              Receiver+Antenna                          NGSD/M+GP60          D/M antenna with extended groundplane
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4.	meters		5.
	Enter the antenna height			If desired, select from several options to modify the basic OPUS procedures.
Your data must be dual frequency data (L1 and L2) and a minimum of 2 hours of observations is recommended. Your collection rate must be 1,2,3,5,10,15 or 30 seconds.