anchor.diff:  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.10,2016-05-09T01:27:36Z,2016-08-16T05:12:09Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.14,2016-08-16T05:12:10Z,2016-12-22T00:32:41Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.15,2016-12-22T00:32:42Z,2017-06-20T01:24:44Z,
  -Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.22,2017-06-20T01:24:45Z,9999-01-01T00:00:00Z,enable GPS-L5
  +Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.22,2017-06-20T01:24:45Z,2020-09-02T01:29:50Z,enable GPS-L5
  +Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50162,5.45,2020-09-02T01:29:51Z,9999-01-01T00:00:00Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50168,4.93,2015-07-23T00:00:00Z,2016-12-08T04:39:46Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50168,5.14,2016-12-08T04:39:47Z,2016-12-20T19:44:38Z,
   Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50168,5.15,2016-12-20T19:44:39Z,2018-01-10T04:13:12Z,
  
positive.code: Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50005,5.10,2015-12-10T00:00:01Z,2016-08-15T05:55:56Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50005,5.14,2016-08-15T05:55:57Z,2016-12-20T03:20:41Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50005,5.15,2016-12-20T03:20:42Z,2017-06-19T23:46:11Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50005,5.22,2017-06-19T23:46:12Z,9999-01-01T00:00:00Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50006,4.93,2015-07-23T00:00:00Z,2016-08-16T01:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50006,5.14,2016-08-16T01:00:01Z,2016-12-20T05:17:46Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50006,5.15,2016-12-20T05:17:47Z,2017-06-20T01:17:57Z,
  
negative.code: Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50170,5.10,2015-12-10T20:15:00Z,2016-08-14T20:25:07Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50170,5.14,2016-08-14T20:25:08Z,2016-12-20T01:00:13Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50170,5.15,2016-12-20T01:00:14Z,2017-06-19T05:54:50Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50170,5.22,2017-06-19T05:54:51Z,2020-09-02T01:55:36Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50170,5.45,2020-09-02T01:55:37Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50175,4.93,2015-07-23T00:00:00Z,2018-05-27T23:35:01Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50175,5.22,2018-05-27T23:35:02Z,2020-09-02T02:07:45Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5505R50175,5.45,2020-09-02T02:07:46Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5506R50082,4.93,2015-07-23T00:00:00Z,2017-04-07T01:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5506R50082,5.15,2017-04-07T01:00:01Z,2017-06-20T17:21:11Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5506R50082,5.22,2017-06-20T17:21:12Z,2020-09-02T02:20:08Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5506R50082,5.45,2020-09-02T02:20:09Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50018,4.93,2015-07-23T00:00:00Z,2018-05-04T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50018,5.14,2018-05-04T00:00:01Z,2018-05-07T02:33:03Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50018,5.22,2018-05-07T02:33:04Z,2020-09-02T02:35:56Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50018,5.45,2020-09-02T02:35:57Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50020,4.93,2015-07-23T00:00:00Z,2017-09-28T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50020,5.14,2017-09-28T00:00:01Z,2018-03-13T20:12:19Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50020,5.22,2018-03-13T20:12:20Z,2020-09-02T02:47:53Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50020,5.45,2020-09-02T02:47:54Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50041,4.93,2015-07-23T00:00:00Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,4.93,2015-07-23T00:00:00Z,2015-12-31T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,5.10,2015-12-31T00:00:01Z,2016-08-21T03:58:51Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,5.14,2016-08-21T03:58:52Z,2016-12-20T14:40:10Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,5.15,2016-12-20T14:40:11Z,2017-06-20T16:12:27Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,5.22,2017-06-20T16:12:28Z,2020-09-02T02:59:09Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50064,5.45,2020-09-02T02:59:10Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50108,4.93,2015-07-23T00:00:00Z,2016-10-31T01:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50108,5.14,2016-10-31T01:00:01Z,2016-12-20T00:26:30Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50108,5.15,2016-12-20T00:26:31Z,2017-06-19T05:22:11Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50108,5.22,2017-06-19T05:22:12Z,2020-09-02T03:11:46Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50108,5.45,2020-09-02T03:11:47Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50111,4.93,2015-07-23T00:00:00Z,2017-09-21T00:05:22Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50111,5.22,2017-09-21T00:05:23Z,2020-09-02T03:23:44Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5508R50111,5.45,2020-09-02T03:23:45Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50001,4.93,2015-07-23T00:00:00Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50003,4.93,2015-07-23T00:00:00Z,2017-05-01T23:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50003,5.14,2017-05-01T23:00:01Z,2017-06-07T01:35:33Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50003,5.15,2017-06-07T01:35:34Z,2017-06-20T16:47:04Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50003,5.22,2017-06-20T16:47:05Z,2020-09-02T03:38:09Z,enable GPS-L5
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50003,5.45,2020-09-02T03:38:10Z,9999-01-01T00:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50004,4.93,2015-07-23T00:00:00Z,2016-09-21T02:00:00Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50004,5.10,2016-09-21T02:00:01Z,2016-09-23T00:14:39Z,
  Trimble Navigation Ltd.,TRIMBLE NETR9,5522R50004,5.14,2016-09-23T00:14:40Z,2016-12-20T08:53:46Z,
  