anchor.diff:  Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,4.85,2015-09-06T17:25:01Z,2016-05-17T17:15:52Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,5.10,2016-05-17T17:15:53Z,2016-09-17T18:04:35Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,5.14,2016-09-17T18:04:36Z,2016-12-20T20:15:34Z,
  -Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,5.15,2016-12-20T20:15:35Z,9999-01-01T00:00:00Z,
  +Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,5.15,2016-12-20T20:15:35Z,2018-01-10T04:41:51Z,
  +Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69868,5.22,2018-01-10T04:41:52Z,9999-01-01T00:00:00Z,enable GPS-L5
   Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69875,4.17,2011-01-14T00:00:00Z,2015-12-10T23:25:15Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69875,5.10,2015-12-10T23:25:16Z,9999-01-01T00:00:00Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5035K69877,4.17,2011-01-14T00:00:00Z,2012-04-10T20:30:00Z,
  
positive.code: Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69696,4.85,2015-09-06T16:25:01Z,2016-05-10T18:10:54Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69696,5.10,2016-05-10T18:10:55Z,2016-09-17T17:53:12Z,enable QZSS BeiDou Galileo
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69696,5.14,2016-09-17T17:53:13Z,2016-12-20T20:04:02Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69696,5.15,2016-12-20T20:04:03Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69697,4.17A,2010-09-19T00:00:00Z,2015-07-28T17:21:40Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69697,4.85,2015-07-28T17:21:41Z,2016-05-17T19:18:48Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69697,5.10,2016-05-17T19:18:49Z,2016-09-17T20:23:18Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69697,5.14,2016-09-17T20:23:19Z,2016-12-20T22:53:46Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69697,5.15,2016-12-20T22:53:47Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69700,4.17A,2010-09-19T00:00:00Z,2015-12-10T23:00:58Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69700,5.10,2015-12-10T23:00:59Z,2016-08-15T05:47:22Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69700,5.14,2016-08-15T05:47:23Z,2016-12-20T03:13:27Z,
  
negative.code: Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69669,4.85,2015-09-07T17:25:01Z,2016-05-17T18:48:58Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69669,5.10,2016-05-17T18:48:59Z,2016-09-17T20:08:10Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69669,5.14,2016-09-17T20:08:11Z,2016-12-20T22:40:56Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69669,5.15,2016-12-20T22:40:57Z,2018-01-10T08:40:15Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69669,5.22,2018-01-10T08:40:16Z,9999-01-01T00:00:00Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69671,4.17A,2010-09-19T00:00:00Z,2011-11-14T23:59:59Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69671,4.42,2011-11-15T00:00:00Z,2012-10-24T23:05:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5034K69671,4.46,2012-10-24T23:05:01Z,2015-08-19T16:25:00Z,
  