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Station Locations: five seisnurmrtcr stations arc deployed as shown in the tigurc. <br />Renuuc Posscr Source: I wa ~S-watt photovoltaic panels and four I I ~ Amp-hr hattcries <br />:rt r:rrh remote site. r)ne '~-watt panel and hs o I I $ :1h haticrirs at cash repeater site. <br />Station/Kuttcry Faults: ('arrogated steel prpe, oriented cerncally and set into ground. <br />-tt lung. ?n-inch drantetrr. Separate insulated vaults titr utstrumcnwtion and battencs. <br />f lale cat ,rnsur vault a dug down to bedrock. A flat concrete floor is poured, onto which <br />the strong-nmtion scisnwntcter is halted. <br />Kadio telemetn•: l he remote data acquisition (K2) systems output continuous seismic <br />tsaaeti~nn daW in serial IRS-'_.i?1 data streams. These data strcants arc tclcmetercd back <br />to a crntrd recording site at the mine using 91111 \9111 license-free spmad-spectrum radios <br />(Intwcoml vra ttvo radio repeaters. Radios arc olxratcd in a b:mdwulth-shanne tune <br />division multiple access ('fb~lA1 mode. Master radios at the central n:cunling site teed <br />into a \1'iGatc caner that makes seismic data from individual swoons available over <br />IY'P.IP ncttvurk sr><kcts, <br />