Fiber Trenches at the VLA
![Digging trenches for fiber optic lines at The VLA](https://public.nrao.edu/wp-content/uploads/2013/09/gallery-images-largeVLAtrench_large.jpg)
Part of the major multi-year upgrade to the Very Large Array was to replace its original metal piped wave guide with fiber optics. Digging the deep trenches for the 2760 miles of fiber was a difficult but necessary task that ensured the connection between antennas and other equipment functioned properly.
Credit: J. Stanley, NRAO/AUI/NSF
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