UAV PPK Solution with

Tersus UAV PPK Solution with Base includes BX316R PPK Receiver,

AX3705 Helix Antenna, Tersus GeoPix Software

and David Base/Rover Kit Network Mode.

Tersus UAV PPK solution includes BX316R PPK Receiver, AX3705 Helix Antenna and Tersus GeoPix Software. BX316R PPK Receiver supports multi-constellations and dual-frequencies. It has in-built 4G memory for GNSS observation data recoding. Very small and light AX3705 Helix Antenna is designed for UAV applications.

Tersus GeoPix integrates the functions of GNSS observation post processing, Event Mark interpolation and geotagging in EXIF. By clicking one button after input all necessary data, the software will provide the result directly as input for image processing software.


  • Simple software interface and simple workflow

  • Automatic processing GNSS data and geotagging images by one button click

  • Show the result in trajectory plot and the images on online map

  • Supports 384 channels

  • Provide PPK result in both EXIF and text file

  • The result can be directly used by image processing software, i.e., Pix4D, Agrisoft, etc.

  • Support Base Station data from CORS or other brands GNSS Receiver


We provide David Base/Rover Kit Network Mode as default kit as Base Station working with UAV PPK Solution. It can not only work as Base Station to record GNSS raw data for post processing, but also as an easy-to-use Rover receiver to measure Ground Control Points for photogrammetry. David Base and Rover are exchangeable, but the accessories of them have some difference. 



Signal Tracking                     

Single Antenna                      GPS L1/L2

                                               GLONASS L1/L2

                                               BeiDou B1/B2

Dual Antenna                         Primary: GPS L1/L2,                                                    GLONASS L1/L2

                                               Secondary: GPS L1,

                                                        GLONASS L2


                                                Primary: GPS L1/L2,

                                                         BeiDou B1/B2

                                                Secondary: GPS L1,

                                                              BeiDou B2


Single Point Positioning Accuracy (RMS)

    -Horizontal                          1.5m

    -Vertical                               3.0m



C/A Code (zenith direction)            10cm

P Code (zenith direction)                10cm

Carrier Phase (zenith direction)       1mm



Time to First Fix

       Cold Start                         <50s

       Warm Start                        <30s

Timing Accuracy (RMS)            20ns

Velocity Accuracy (RMS)          0.03m/s

Initialization (typical)               <10s

Initialization Reliability            <99.9%



Physical & Electrical          


Size                                                       108 x 54 x 12mm

Weight                                                 44g

Input Voltage                                       5V~12V DC

Power Consumption (typical)             3.5W

Active Antenna Input Impedance      50Ω

Antenna Connector                             SMA female x2

COM Baud Rate                                   Up to 921600 bps                              

Operating Temperature                      -40℃ ~ +85℃



Storage                                                  In-built 4gb memory

Correction                                             RTCM 2.x/3.x/CMR/CMR+

Output                                                  NMEA-0183; Tersus Binary Format

Max. Update Rate                                20Hz

Log & Command Compatible             NovAtel Protocol


Serial Ports                                             LVTTL x2 or RS232 x2

USB Ports                                               USB 2.0 device x1

CAN Ports                                              LVTTL or ISO/DIS 11898 x2 *

PPS Ports                                                LVTTL x1

Event Mark                                             LVTTL x2 *

Ethernet                                                 10/100M Base-T x1 *

Remarks:                                                 * This port's function is related to                                                                         firmware version. 


In the Box

UAV PPK Solution includes

  • BX316R PPK Receiver with cables of power supply event mark and serial port

  • Hot Shoe adaptor

  • Tersus GNSS Base Statio Receiver (Optional)

  • AX3705 Helix Antenna

  • Tersus GeoPix Software

@ 2019 TECPHIL Geosolutions Co.

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