GPR – examples of operation

The following are examples of survey readouts. The GPR operated with the 900 MHz shielded antenna and the 500 MHz non-shielded antenna.

Data processing requires time, experience and professional software. Nevertheless, an experienced GPR operator is able to filter out (from the acquired results) the data, which provide us with answers for questions asked by customers.


The map of anomalies occurring in one of the many mounds in Poland.

Click here to see more examples of use GPR in archaeology.


A classic example of karst caverns. The 100 MHz antenna. The depth of anomalies is approximately 10 m.


The survey of the Jasna Góra stronghold showed a fragment of a wall dug under ground on the depths of approximately from 1 m to 3,5 metres.

The GPR is capable of showing the location of many centres very precisely. Here, the survey of a bunker floor showed the usage of different materials, when it was built.

A simple example showing the manner of presentation by the GPR of the change of centre type. A cavern in this case. 

An excellent example of building plot seller’s dishonesty and negligence of a crew demolishing the former building (early post-war years). The GPR establishes with high precision the depth and shape of a rubble heap covered with a metre-high embankment.

The drawing shows large medieval walls (the centre of the scan) surrounded with the remains of contemporary foundations. The depth of walls is approximately ~3,5 metres. The profile without any filters.

In this example, the GPR precisly detects damage in flood banks, filled up with sandy soils.

The remaining examples of GPR profiles: