anchor.diff:  TKAR,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,geonet,trimble_5700 x4,2010-06-03T04:59:30Z,2014-07-23T23:39:00Z
   TKAR,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2014-07-23T23:47:38Z,9999-01-01T00:00:00Z
   TKHL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2014-06-18T00:00:20Z,2016-09-12T00:06:00Z
  -TKHL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,0,linz,trimble_netr9 x4,2016-09-12T00:06:01Z,9999-01-01T00:00:00Z
  +TKHL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,0,geonet,trimble_netr9 x4,2016-09-12T00:06:01Z,9999-01-01T00:00:00Z
   TORY,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,geonet,trimble_5700 x4,2005-04-20T05:00:00Z,2017-07-17T23:51:58Z
   TORY,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2017-07-17T23:51:59Z,9999-01-01T00:00:00Z
   TRAV,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,geonet,trimble_5700 x4,2005-06-23T00:00:00Z,2018-06-22T00:52:37Z
  
positive.code: MQZG,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,linz,trimble_netr9 x4,2015-08-18T17:25:01Z,2016-06-27T17:14:09Z
  MQZG,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,0,linz,trimble_netr9 x4,2016-06-27T17:14:10Z,9999-01-01T00:00:00Z
  MRBL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2014-07-02T02:05:38Z,2016-09-12T01:00:00Z
  MRBL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,0,linz,trimble_netr9 x4,2016-09-12T01:00:01Z,9999-01-01T00:00:00Z
  MTBL,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,geonet,trimble_5700 x4,2008-03-11T07:01:00Z,2015-07-24T01:05:57Z
  MTBL,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2015-07-24T01:05:59Z,9999-01-01T00:00:00Z
  MTJO,GeoNet,GNS,TRIMBLE 4000SSI,GPS,30s,4,sagenz,trimble_r x19,2000-08-15T00:00:00Z,2004-06-05T02:00:00Z
  
negative.code: KUTA,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2017-05-03T00:35:32Z,9999-01-01T00:00:00Z
  LDRZ,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,3,geonet,trimble_netr9 x4,2012-06-01T00:00:01Z,9999-01-01T00:00:00Z
  LEVN,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,geonet,trimble_5700 x4,2008-06-30T02:35:00Z,2015-09-23T23:59:59Z
  LEVN,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,0,geonet,trimble_netr9 x4,2015-09-24T00:00:00Z,2016-12-19T20:44:00Z
  LEVN,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,0,geonet,trimble_netr9 x4,2016-12-19T20:44:01Z,9999-01-01T00:00:00Z
  LEXA,GeoNet,GNS,TRIMBLE NETRS,GPS,30s,4,linz,trimble_5700 x4,2004-03-16T00:00:00Z,2010-12-20T01:43:00Z
  LEXA,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO,30s,3,linz,trimble_netr9 x4,2010-12-20T04:56:46Z,2013-03-02T00:19:59Z
  LEXA,GeoNet,GNS,TRIMBLE NETR9,GPS+GLO+GAL+BDS+QZSS,30s,3,linz,trimble_netr9 x4,2013-03-02T00:20:01Z,2015-09-20T16:25:00Z
  