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