F.A.Q.

Learn more about the science behind GPR

1We are frequently asked, “How can you possibly achieve subsurface penetration of up to 200m?” when the maximum scanning depth of all other Ground Penetrating Radars is limited to 10 to 20 metres. Surely this is not possible…..?
1. It is correct that the commonly achieved depth penetration for “normal” GPRs in the market today across the world are just some 10m to 20m. Loza-Radar’s claim of greater competency – of a significant order of magnitude - would therefore appear to be an extraordinary claim! Below is our simple answer...

2. Traditional GPR operates in the frequency range 100-500 MHz. The Loza-Radar research team and developers have, after many years of hard work, conceived of and designed an entirely different type of GPR.

3. To achieve the extended depths with our GPR, the transmitting signal is moved to a lower frequency, being within a band of 1-50 MHz, and the peak power of the transmitter is increased by a factor of hundreds of thousands in relation to the traditional types of GPR.

Deployment

1What do you need to know when planning a survey?
We normally request to liaise directly with the project geologist or consultant teams. We research the client’s objective and details of the ground and resource. By using google-earth, superimposing maps and key features of interest, we can draw a suggested profile plan.

We write a short proposal, and explain our methodology. We submit this to you for approval, and then request a service agreement to be signed.

Once the service agreement and formalities are completed, we request that the profile lines are cleared to the required specification, so our radar team can arrive and quickly collect the data.
2How do you get to us, and how much equipment do you have?
Typically – depending on the location and support a client can give, we send a team of two technicians to you to collect the data.

We travel to the nearest international airport by commercial airlines. We normally have 3 or 4 out-sized suitcases. So both the radar kit and technicians, plus a driver, can all fit in one vehicle or light aircraft. You may need to help us secure visas
3What am I responsible for once the survey team arrives in country?
Most importantly, provide a safe and secure environment for the survey team.

Provide some local labour to assist with conducting the survey – for example, pulling the radar when the terrain is poor and manual effort is required, or perhaps helping to clear new profile lines if the plan changes once on site.

Provide food, drinking water and accommodation to the radar team where required. Provide local transport for the technical team.

We recommend that the client provides their own surveyor (with DGPS if possible) to maximize the accuracy of data input to their model.

The client is requested to provide electrical power and internet access during the evening for the team so they can re‐charge batteries and speed up the analysis via connection with additional members of the analytical team.
4Am I assured to get good results?
Geophysics is susceptible to varying degrees of success, mostly determined by the characteristics of the ground and other influences such as atmospherics, which can only be assessed once on the ground. Or put another way, some ground is more susceptible to geophysical investigation than others, and there is no way to tell you unless we come and trial the radar with you.

To this end, our service agreement is very specific about mitigating client’s risk. We always carry out a short preliminary trial, and ascertain with the client whether they want to continue. This means the client is only at risk for the mobilization of the team.

We carry out hundreds of kilometres of work a year, and work hard to deliver the very best results we can.
5Does Loza Sell its Radar Equipment?
No - we no longer offer units for sale. We have historically sold units in Russia, some of which have made their way into various geophysical consultancies. However these teams are not backed up with the latest hardware and software upgrades, or technical support, and so do not achieve the best possible results.

Resource

1Will the Radar reduce my drilling cost?
Loza Radar is an innovative new tool for geologists to avail of. It has the potential to reduce dependency on drilling for geological control, and also to reduce the associated costs of drilling.

Loza radar has the capability to provide continuous interpretations of geological and structural contacts than can only be partially “visualised” with drilling plans. This provides the following advantages:
  • Opportunity to reduce drilling costs
  • Improvement and enhancement of geological knowledge
  • Lower risk
  • Cost effective compared to drilling alone
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