VDOP Mask x = value of VDOP mask (between 0 and 99, default 4) Designate Satellites to Use d = PRN number of SV (1-32) c = Y (use) or N (don’t use) Unhealthy SV Select Group x = Y (yes) or N (no) Designate Satellites to Acquire xxxx...xxx x = Y (use) or N (don’t use) (position of x = SV PRN number) Set Serial Port Speed x = port A, B, or C s = baud rate (default = 5, 9600 bps) (0 = 300; 1 = 600; 2 = 1200; 3 = 2400 4 = 4800; 5 = 9600; 6 = 19200; 7 = 38400) Set Site Name x = user defined string of four characters Session Programming Commands xxx = PAR (general) or SET (individual) [see manual for rest of parameters] Save Parameters x = Y (yes) or N (no) RTCM Differential Control str = [AUT,BAS,MAX,MSG,OFF,QAF,REM, SEQ,SPD,STI,STH,TYP] x= Y/N or port A/B/C depending on str Reset SCA-12/12S Data Type Mode x = 0 geodetic data (B-File) 2 position data (C-File) Turn Data Recording On/Off x = Y (yes) or N (no) Recording Interval x.x = interval in seconds between 0.5 and 999.5, default = 20.0 Power Off x = OFF 1 PPS Pulse Output xx = 1PPS period in seconds (max 60) yyy.yyyy = offset from GPS time (msec.) (10 nanosec. resolution) a = R (rising) or F (falling) edge of pulse Point Positioning Mode x = Y (yes) or N (no) Power Consumption xxxxx = battery capacity in mAh (500 - 10000) yyy = remaining power in % zz.z = battery voltage Position of the Antenna ddmm.mmmmmmm = latitude (degrees) x = N (North) or S (South) ddmm.mmmmmmm = longitude y = E (East) or W (West) sxxxxx.xx = altitude (s=+/-, xxx = meters) Position Mode x = 0 - min. of 4 SVs needed (3D) 1 - min. of 3 SVs needed (3D/2D; default) 2 - min. of 3 SVs needed (2D always) 3 - min of 3 SVs needed (2D/3D) Photogrammetery File Commands x = D (delete) Set Photogrammetry Edge x = R (photo rising edge; default) F (falling edge) Elevation Mask for Position Calculation x = SV elevation mask (degrees) (x between 0 and 90; default = 5) PDOP Mask x = value of PDOP mask (between 0 and 99, default 4) Request Current Receiver Parameters Set NMEA/Raw Data Messages str = data message type (or ALL off) [Raw: MBN,MCA,PBN,SNV,SAL] [NMEA: GGA,GLL,GRS,GSA,GSN,GSS,GSV, GXP,MSG,PER,POS,RRE,SAT,TTT,VTG] x = port A, B, or C y = ON or OFF Set Minimum Satellites x = min # of satellites for data collection x is between 1 and 9 (default 3) Loop Tracking x = 0 - 10 (ratio; default = 1) y = 1, 2, 3 (carrier loop selection; default = 2) z = 1, 2, 3 (code loop selection; default = 1) Longitude of Antenna Position ddmm.mmmmmmm = longitude (degrees) x = E (East) or W (West) Latitude of Antenna Position ddmm.mmmmmmm = latitude (degrees) x = N (North) or S (South) Include Ionospheric Model x = Y (include) or N (exclude) HDOP Mask x = value of HDOP mask (between 0 and 99, default 4) Altitude Hold Fix Mode x = 0 - most recent antenna altitude calculated or entered used (default) 1 - most recently entered altitude used Close or Delete File x = C (Close) or D (Delete) y = file number (not needed for ‘C’) Epochs to Go x = epochs to go (0 to 999) Elevation Mask for Data Collection x = SV elevation mask (degrees) (x between 0 and 90; default = 5) Daisy Chain x = source port (or OFF) y = destination port (or OFF) Store String s = string (maximum of 80 chars) Clear external memory Antenna Height x.xxxx = height in meters (max = 6.4000) Altitude of Antenna, Altitude Hold Fix s = + or - xxxxx.xx = 0 to 99999.99 Ellipsoidal Height of Antenna (meters) Set SCA-12/12S Parameters xxx = message type = parameters Request SV Status Session Programming Parameters Request Satellite Tracking Status Request Differential Mode Parameters and Status Request Receiver ID Show Raw Data Parameters Display Baud Rate 1 PPS Output Mode x = port A, B, or C Query Battery Condition x = port A, B, or C Query Photogrammetry Edge x = port A, B, or C Request Current Receiver Parameters Memory Test Status Query Loop Tracking x = port A, B, or C File Directory x = port A, B, or C Query SCA-12/12S xxx = message type = parameters Output Sentence Enable/Disable <1> Target sentence description e.g. PGRMT, GPGSV <2> Target sentence mode 0=disable 1=enable 2=disable all 3=enable all (except GPALM) Request Current Sensor Config. Defaults Sensor Config. <1> Fix (A=Auto/2=2D/3=3D) <2> Alt. <3> Datum (user=96) <4> User SMA <5> IFA <6> DxECC <7> DyECC <8> DzECC <9> Diff. (A=auto/D=diff) <10> bps (1=1200/2=2400/3=4800/4=9600) <11> Vel. filter (0=no/1=auto/2=t) <12> PPS (2=1hz) Request Current PGRMI Defaults Sensor Initialization Information <1> Latitude (ddmm.mmm) <2> N/S <3> Longitude (dddmm.mmm) <4> E/W <5> Current UTC Date (ddmmyy) <6> Current UTC Time (hhmmss) <7> Receiver command A=Auto Locate; R=Unit Reset Almanac Information <1> Total # sent. <9> ROA <2> Curr. # <10> RSMA <3> Satellite PRN <11> Omega <4> GPS week # <12> LAN <5> SV health <13> MA <6> Eccentricity <14> af0 <7> Ref. time <15> af1 <8> Inclination Rockwell/Tripmate Output mode str = NMEA message [GGA,GSA,GSV,ZCH,RMC] x = A (on) or V (off) T = T (time output) z = output time in seconds 0 = unknown variable Initialize DeLorme Tripmate Dial Modem/Remote GPS xxx-xxxx = phone number Change to ATDP for pulse phones. Note that most modems need an "AT" string alone to initialize to the proper bps rate. Send "ATZ" to reset modem; "ATH" to hang up line. Starlink Differential GPS Control Message x = Frequency y = bit rate z = Request Type (J= status; K = configuration; blank = tuning)