San Jose Navigation GPS Mobile Locator GM-158-USB Bedienungsanleitung PDF herunterladen (Seite 32)

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Fig. 5.2 Top: “Shallow” antenna. Bottom: “Mid” antenna

The two signatures in Figure 5.3 at the left side are water pipes. The one

on the left is made of PVC and the right is metallic. As seen the metallic

pipes give a sharper signature but the PVC pipe still is identified quite

simply.

Electrical Conduits

Unknown

Force Main

Water Main

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San Jose Navigation GPS Mobile Locator GM-158-USB Bedienungsanleitung Seite 32