What’s on the GNSS Surveying poster
A definition and 6 facts worth remembering.
Satellite positioning gives coordinates directly, and the correction method sets the accuracy achieved.
- Standalone gives metres, not survey accuracy
- RTK needs a base or a network correction
- Height is always the weakest component
- Ellipsoid height needs a geoid model
- Canopy, walls and multipath ruin a fix
- A float solution is not a fixed solution
- Typical RTK horizontal — 10 to 20 mm
- Typical RTK vertical — About twice that
- A control point under trees is where a GNSS survey quietly goes wrong.
Educational reference. Datum, projection and geoid model must be recorded, and results verified against known control.
Questions about the GNSS Surveying poster
- What’s on the GNSS Surveying poster?
- A definition and 6 facts worth remembering. Satellite positioning gives coordinates directly, and the correction method sets the accuracy achieved. Standalone gives metres, not survey accuracy; RTK needs a base or a network correction; Height is always the weakest component; Ellipsoid height needs a geoid model; Canopy, walls and multipath ruin a fix; A float solution is not a fixed solution; Typical RTK horizontal — 10 to 20 mm; Typical RTK vertical — About twice that; A control point under trees is where a GNSS survey quietly goes wrong.. Educational reference. Datum, projection and geoid model must be recorded, and results verified against known control.
- Who is the GNSS Surveying poster for?
- GNSS Surveying belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning surveying can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the GNSS Surveying poster?
- Choosing between GNSS and a total station for a piece of work. A wall chart earns its place by being glanceable from where the work is happening, so GNSS Surveying belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with GNSS Surveying?
- Datums & Benchmarks, Areas & Volumes and Bearings sit alongside GNSS Surveying in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Datums & BenchmarksAreas & VolumesBearings
- Is the GNSS Surveying poster free to download and print?
- Yes. GNSS Surveying downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the GNSS Surveying poster print at?
- GNSS Surveying is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of GNSS Surveying loses nothing.Printing guide
Related posters
Charts that sit alongside GNSS Surveying on the same wall.
Browse every Civil Engineering poster, or start from the full catalogue.