I was snooping around the internet and found something interesting.
Check this out:
http://www.navcen.uscg.gov/loran/geninf ... eloran.pdf
http://www.navcen.uscg.gov/Loran/geninf ... l_PEIS.pdf
Check this out:
http://www.navcen.uscg.gov/loran/geninf ... eloran.pdf
http://www.navcen.uscg.gov/Loran/geninf ... l_PEIS.pdf