Trimble 4700/5700/R7 - PPK Cheatsheet
Trimble 4700/5700/R7 - PPK Cheatsheet
The following are suggested settings for most UNAVCO-supported PPK surveys. For a detailed how-to on PPK surveys, see Trimble 4700/5700/R7 - How to execute a post-processing kinematic (PPK) survey from start to finish (/questions/618).
Things to know before and during the survey:
Base GPS antenna type: _____________ (usually Zephyr Geodetic)
Rover GPS antenna type: _____________ (usually Zephyr or Zephyr Geodetic)
Base GPS antenna height measurement method: _____________ (usually "Bottom (or Top) of notch" or "Bottom of antenna mount")
Rover GPS antenna height measurement method: _____________ (usally "Bottom of antenna mount")
In the job:
Coordinate system: Do not choose one: No projection/no datum, Coordinates: Ground, Reference elevation: [elevation within 100 meters of your base elevation], Use geoid model: No.
In the survey style:
Select "PP Kinematic" or "PPK".
Rover options
Logging device: Controller
Auto file names: Yes
Logging interval: depends on survey goals; usually 1-15 seconds
Elevation mask: 13 00’00"
PDOP mask: 6 (but can be more, e.g. 20)
Antenna height, Type, and Meas. to can be modified during the survey
Base options
Logging device: Receiver
Logging interval: Must be at least as frequent as rover, e.g. 1-15 seconds
Elevation mask: 13 00’00"
Antenna height, Type, and Meas. to can be modified at survey start
Topo point
Auto point step size: 1
Quality control: QC1
Auto store point: Yes
Occupation time: 0m 5s
Number of measurements: 3