00346    a2200121   4500003000500000005001700005040000900022245004300031250000800074260002500082505010600107651001100213Nust20170207154012.0  cNust  aGPS Protocol Reference Manual (E-BOOK)  a1st  bLeadtek Research Inc  aChapter 1.NMEA Input/Output Messages (Page-1), Chapter 2.SiRF Binary Protocol Specification(Page-15).  aE-BOOK