Service

GPS / GNSS Surveys

Satellite-based control that ties every survey on a site to a single, accurate coordinate framework — the backbone the rest of the survey hangs from.

What it is

GPS / GNSS Surveys — engineered for accuracy.

GNSS — the family of satellite positioning systems that includes GPS — lets surveyors establish precise positions over large areas quickly. On a mine or construction site it provides the primary control network: the set of accurately known points that all detailed survey, setting-out and machine guidance reference back to.

Survey House establishes control survey systems from the national trigonometric beacons — orienting on the national trig, running a GPS survey and transforming onto newly constructed control beacons on site. From those beacons, every surface and underground activity is surveyed in. The work spans whole countries — the group has GPS-coordinated plateaus and access routes for BHP Billiton in Gabon.

Survey House uses static GNSS observation for high-accuracy control and baselines, and real-time kinematic (RTK) methods for rapid setting-out and topographic pick-up. Properly georeferenced control means open-pit surveys, surface infrastructure and underground transfers all sit in the same coordinate system. Because an error in control propagates into everything measured from it, the network is built and verified with care before detailed survey begins.

Where it's used

Typical applications

Control-network establishment from national trig beacons
Site georeferencing & datum transformation
Open-pit & surface topographic survey
Setting-out of surface infrastructure
Cross-border GPS coordination
Machine-guidance base stations

What you receive

Typical deliverables

Coordinated control-point schedules
Datum & projection definitions
Topographic survey data
Control-network adjustment reports

FAQ

GPS / GNSS Surveys — frequently asked questions

Clear answers to the questions clients and search engines ask most about this service.

What is the difference between GPS and GNSS?

GPS is the United States' satellite system; GNSS is the broader term covering GPS plus other constellations such as GLONASS, Galileo and BeiDou. Modern receivers use several constellations together for faster, more reliable positioning.

How accurate is GNSS surveying?

Static GNSS observation achieves millimetre-to-centimetre control accuracy; RTK methods deliver centimetre-level positions in real time for setting-out and topographic work.

Why does a mine need a GNSS control network?

It provides the single, accurate coordinate framework that every other survey references, so data captured at different times and by different methods all aligns correctly. Survey House builds these from the national trig beacons and verifies them before detailed work begins.

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