LISPB - 7 Perthshire Scotland 27th July 1974
You need to record the upcoming seismic waves at a geophone station. See this and next 3 images.

Shots were fired as near to 7pm as possible when it was considered atmospheric conditions were at their quietest. The 3 component geophones were normally set up in a shallow pit dug for the purpose. This was to make sure they were protected from any wind movement.. I think it was actually under that spare wheel in this case. The Uher recording unit - seen in the left foreground was started 5 minutes before the shot period and left running for at least 15-20 minutes during which time total silence was observed and no unnecessary movements made. We were not in communication with the shooting team so had no idea if the shot had actually gone off or not.

Here Rob takes it easy in the evening sun during the shot window in a field near Perth. There was an isolated cottage about 200 yards over to the left which looked abandoned to us. Anne had wandered up there to keep clear of the recording so it was a bit eerie to hear the clear sound of a harmonium being played wafting across to us throughout the shot window! It wasn't abandoned after all and Anne had been invited to play by the old lady who lived there.
uk field car landscape scotland countryside blackwhite scenery noiretblanc transport perthshire experiment rob transportation refraction vehicle landrover survey recording seismic uher geophysics geophysical lispb geophone