Dr. Sean McConnel’s Post

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Senior Project Manager at Bigman Geophysical, LLC

Everyone hates it when you blame "signal interference" for not being able to see a feature, but it really can be a problem! I find it helps to provide some screenshots of what interference looks like. This troublesome dataset was taken in Brooklyn, NY. You can see some teeny little pipes that imaged just fine with Geolitix in yellow, but also a response from a nearby parked car (on the surface) in magenta, and some electrical interference in Green. It doesn't happen often, but once in a while, we get data down a road that is just LOADED with interference. Powered telecom and large electrical systems are typical culprits. Radar works on the vast majority of landscapes, but there are a few places where GPR will not penetrate, or where there is so much noise it's like trying to listen to bird calls while someone is blasting techno.

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Ferry van den Oever

Senior geophysical consultant at Saricon

2w

Spot on, Sean! Nice post! UP or DP data??

Great example! We had a survey crew set up their base station on our site and it made the GPR collection nearly impossible. I finally figured out that he was transmitting on the same frequency. The operators at refineries will mess with your data every time they click the talk button on their walkie-talkies

Michael A Twohig

Subsurface Utility Mapping at DGT Associates

2w

Welcome to my life. Thanks for sharing

Anthony Johnstone

Director Access Detection

2w

what great analogy with the birds and blasting techno. Use something similar when over gaining on EM locators.

Nathan Weston

Junior Utility Surveyor at Encompass Surveys Ltd

2w

Good info, for the future. Cheers

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