DGPS Logs 26-27 Oct 2017

[ChrisSmolinski]

What's the deal with Soh and Pulau Satumu (Raffles) ?? These were presumably decodes with a Ref ID of 000, which is why both stations appeared. I've seen them before this way, usually 2 or 3 decodes widely spaced over the night. But here's the 4 decodes from last night:
Friday, October 27, 2017 03:42:55
Friday, October 27, 2017 03:43:01
Friday, October 27, 2017 03:43:06
Friday, October 27, 2017 03:43:12


These are not widely spaced. They are exactly what you would expect from a brief opening. Upper Keweenaw is the dominant station on 298 kHz. There is also Hartlen Point, NS which is 100 baud. Could it have appeared with a Ref ID of zero for 4 decodes over 17 seconds? Those two foreign stations are supposed to have two non zero Ref IDs, apparently when the pdf file was converted to text for ADGPS they got dropped. I need to look into this further.

Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
3        152  494  495  310.0 200  Marbat                         Oman                 16.967   54.751   11,971 49 
4        746  000  132  298.0 200  Pulau Satumu (Raffles)         Singapore            1.165    103.746  15,471 359
4        669  000  738  298.0 200  Soh                            South Korea          34.096   125.1    11,501 341
23       883  266  267  287.0 100  Pigeon Point, CA               United States        37.189   -122.394 3,923  281
41       918  310  311  286.0 200  Wiarton, ON                    Canada               44.75    -81.117  656    330
78       764  210  211  314.0 200  Lincoln, CA                    United States        38.855   -121.361 3,782  283
160      907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 3,753  302
337      937  330  331  298.0 200  Hartlen Point, NS              Canada               44.583   -63.45   1,238  60 
382      828  246  247  301.0 100  Angleton, TX                   United States        29.301   -95.484  2,046  241
401      919  308  309  306.0 200  Cardinal, ON                   Canada               44.783   -75.417  579    12 
500      881  262  263  302.0 100  Point Loma, CA                 United States        32.677   -117.25  3,666  271
729      871  172  173  300.0 100  Appleton, WA                   United States        45.792   -121.332 3,637  296
918      836  112  113  292.0 200  Cheboygan, MI                  United States        45.656   -84.475  901    320
2346     886  272  273  287.0 100  Fort Stevens, OR               United States        46.208   -123.96  3,834  297
2537     814  028  029  293.0 200  English Turn, LA               United States        29.886   -89.947  1,608  231
2778     809  018  019  289.0 100  Cape Canaveral, FL             United States        28.467   -80.554  1,292  196
2867     935  334  335  312.0 200  Western Head, NS               Canada               43.993   -64.67   1,124  61 
3112     934  336  337  307.0 200  Fox Island, NS                 Canada               45.361   -61.097  1,442  59 
4215     830  100  101  296.0 100  Wisconsin, Point WI            United States        46.708   -92.025  1,444  308
6241     940  338  339  315.0 200  Cape Race, NL                  Canada               46.661   -53.075  2,076  60 
7706     944  342  343  310.0 200  Cape Norman, NL                Canada               51.509   -55.831  2,091  44 
9057     972  901  902  302.0 200  Miraflores                     Panama               8.993    -79.585  3,425  185
15667    971  903  904  307.0 200  Gatun                          Panama               9.261    -79.937  3,398  186
24854    806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  307    173
27250    839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  427    338
28186    831  102  103  298.0 100  Upper Keweenaw, MI             United States        47.233   -88.628  1,257  316
28388    803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  378    70 
29761    925  320  321  313.0 200  Moise, QC                      Canada               50.202   -66.119  1,443  32 
30937    778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  723    198
32279    771  196  197  294.0 100  New Bern, NC                   United States        35.181   -77.059  503    181
38001    929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
39587    926  318  319  300.0 200  Riviere du Loop, QC            Canada               47.762   -69.606  1,073  31 
40086    939  326  327  295.0 200  Partridge Island, NB           Canada               45.239   -66.056  1,085  52 
41428    942  340  341  288.0 200  Cape Ray, NL                   Canada               47.636   -59.241  1,671  52 
42455    827  244  245  312.0 200  Tampa, FL                      United States        27.85    -82.543  1,414  203
46247    808  016  017  314.0 200  Card Sound, FL                 United States        25.442   -80.452  1,619  193
48339    927  316  317  309.0 200  Lauzon, QC                     Canada               46.821   -71.165  920    29 
49728    847  058  059  301.0 200  Annapolis, MD                  United States        39.018   -76.61   82     158
50455    777  218  219  304.0 200  Mequon, WI                     United States        43.202   -88.066  1,002  296
50505    772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  561    64 
51182    799  044  045  290.0 200  Penobscot, ME                  United States        44.453   -68.776  858    49 
51374    838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  590    301
51419    804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   266    70 
51863    792  136  137  297.0 200  Bobo, MS                       United States        34.125   -90.696  1,367  247
52144    844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  489    35 

[ChrisSmolinski]

I added some diagnostics output to ADGPS and verified the received messages did indeed have Ref ID 000.


Here are all the decodes from Hartlen Point, NS:

Friday, October 27, 2017 00:07:10
Friday, October 27, 2017 00:09:41
Friday, October 27, 2017 00:09:42
Friday, October 27, 2017 00:09:43
Friday, October 27, 2017 00:09:44
Friday, October 27, 2017 00:09:45
Friday, October 27, 2017 00:09:47
Friday, October 27, 2017 00:09:49
Friday, October 27, 2017 00:09:50
Friday, October 27, 2017 00:09:51
Friday, October 27, 2017 00:09:53
Friday, October 27, 2017 00:09:54
Friday, October 27, 2017 00:09:55
Friday, October 27, 2017 00:10:00
Friday, October 27, 2017 00:10:05
Friday, October 27, 2017 00:10:06
Friday, October 27, 2017 00:10:07
Friday, October 27, 2017 00:10:08
Friday, October 27, 2017 00:10:11
Friday, October 27, 2017 00:10:12
Friday, October 27, 2017 00:10:13
Friday, October 27, 2017 00:10:15
Friday, October 27, 2017 00:10:17
Friday, October 27, 2017 00:10:18
Friday, October 27, 2017 00:10:24
Friday, October 27, 2017 00:10:34
Friday, October 27, 2017 00:22:22
Friday, October 27, 2017 00:23:11
Friday, October 27, 2017 00:23:12
Friday, October 27, 2017 00:23:14
Friday, October 27, 2017 00:23:29
Friday, October 27, 2017 00:23:46
Friday, October 27, 2017 00:23:47
Friday, October 27, 2017 00:23:48
Friday, October 27, 2017 00:23:52
Friday, October 27, 2017 00:23:53
Friday, October 27, 2017 00:23:54
Friday, October 27, 2017 00:23:58
Friday, October 27, 2017 00:23:59
Friday, October 27, 2017 00:24:00
Friday, October 27, 2017 00:24:04
Friday, October 27, 2017 00:24:05
Friday, October 27, 2017 00:30:03
Friday, October 27, 2017 00:30:06
Friday, October 27, 2017 00:30:07
Friday, October 27, 2017 00:31:32
Friday, October 27, 2017 00:31:37
Friday, October 27, 2017 00:31:40
Friday, October 27, 2017 00:31:43
Friday, October 27, 2017 00:31:44
Friday, October 27, 2017 00:31:45
Friday, October 27, 2017 00:31:48
Friday, October 27, 2017 00:31:49
Friday, October 27, 2017 00:31:50
Friday, October 27, 2017 00:31:51
Friday, October 27, 2017 01:18:03
Friday, October 27, 2017 01:19:02
Friday, October 27, 2017 01:20:09
Friday, October 27, 2017 01:22:32
Friday, October 27, 2017 01:23:26
Friday, October 27, 2017 01:23:29
Friday, October 27, 2017 01:23:32
Friday, October 27, 2017 01:23:33
Friday, October 27, 2017 01:23:34
Friday, October 27, 2017 01:23:35
Friday, October 27, 2017 01:23:38
Friday, October 27, 2017 01:23:39
Friday, October 27, 2017 01:23:40
Friday, October 27, 2017 01:23:41
Friday, October 27, 2017 01:23:44
Friday, October 27, 2017 01:23:46
Friday, October 27, 2017 01:23:47
Friday, October 27, 2017 01:23:51
Friday, October 27, 2017 01:23:52
Friday, October 27, 2017 01:23:53
Friday, October 27, 2017 01:23:55
Friday, October 27, 2017 01:23:57
Friday, October 27, 2017 01:23:58
Friday, October 27, 2017 01:23:59
Friday, October 27, 2017 01:24:15
Friday, October 27, 2017 01:24:16
Friday, October 27, 2017 01:24:17
Friday, October 27, 2017 01:24:18
Friday, October 27, 2017 01:24:21
Friday, October 27, 2017 01:24:22
Friday, October 27, 2017 04:26:46
Friday, October 27, 2017 04:26:47
Friday, October 27, 2017 04:26:48
Friday, October 27, 2017 04:26:51
Friday, October 27, 2017 04:26:52
Friday, October 27, 2017 04:26:53
Friday, October 27, 2017 04:26:54
Friday, October 27, 2017 04:26:57
Friday, October 27, 2017 04:26:59
Friday, October 27, 2017 04:51:47
Friday, October 27, 2017 04:51:52
Friday, October 27, 2017 04:51:58
Friday, October 27, 2017 04:51:59
Friday, October 27, 2017 04:52:01
Friday, October 27, 2017 04:52:03
Friday, October 27, 2017 04:52:05
Friday, October 27, 2017 04:52:07
Friday, October 27, 2017 04:52:13
Friday, October 27, 2017 04:52:16
Friday, October 27, 2017 04:52:17
Friday, October 27, 2017 04:52:18
Friday, October 27, 2017 04:52:21
Friday, October 27, 2017 04:52:22
Friday, October 27, 2017 04:52:23
Friday, October 27, 2017 04:52:24
Friday, October 27, 2017 04:52:27
Friday, October 27, 2017 04:52:29
Friday, October 27, 2017 04:52:30
Friday, October 27, 2017 04:52:33
Friday, October 27, 2017 04:52:34
Friday, October 27, 2017 04:52:48
Friday, October 27, 2017 04:52:52
Friday, October 27, 2017 04:52:56
Friday, October 27, 2017 04:53:04
Friday, October 27, 2017 04:53:05
Friday, October 27, 2017 04:53:10
Friday, October 27, 2017 04:53:16
Friday, October 27, 2017 04:53:17
Friday, October 27, 2017 04:53:18
Friday, October 27, 2017 04:53:22
Friday, October 27, 2017 04:53:25
Friday, October 27, 2017 04:53:29
Friday, October 27, 2017 05:01:23
Friday, October 27, 2017 05:01:32
Friday, October 27, 2017 05:51:23
Friday, October 27, 2017 05:51:27
Friday, October 27, 2017 05:51:29
Friday, October 27, 2017 05:51:33
Friday, October 27, 2017 05:51:39
Friday, October 27, 2017 05:51:40
Friday, October 27, 2017 05:51:43
Friday, October 27, 2017 05:51:45
Friday, October 27, 2017 05:51:46
Friday, October 27, 2017 05:51:49
Friday, October 27, 2017 05:51:51
Friday, October 27, 2017 05:51:52
Friday, October 27, 2017 05:51:55
Friday, October 27, 2017 05:51:56
Friday, October 27, 2017 05:52:01
Friday, October 27, 2017 05:52:02
Friday, October 27, 2017 05:52:03
Friday, October 27, 2017 05:52:04
Friday, October 27, 2017 05:52:08
Friday, October 27, 2017 05:52:10
Friday, October 27, 2017 05:52:12
Friday, October 27, 2017 05:52:14
Friday, October 27, 2017 05:52:15
Friday, October 27, 2017 05:52:16
Friday, October 27, 2017 05:52:18
Friday, October 27, 2017 05:52:21
Friday, October 27, 2017 05:52:22
Friday, October 27, 2017 05:52:23
Friday, October 27, 2017 05:52:24
Friday, October 27, 2017 05:52:26
Friday, October 27, 2017 05:52:27
Friday, October 27, 2017 05:52:29
Friday, October 27, 2017 05:52:32
Friday, October 27, 2017 05:52:33
Friday, October 27, 2017 05:52:34
Friday, October 27, 2017 05:52:35
Friday, October 27, 2017 05:52:38
Friday, October 27, 2017 05:52:39
Friday, October 27, 2017 05:52:40
Friday, October 27, 2017 05:52:41
Friday, October 27, 2017 05:52:42
Friday, October 27, 2017 05:52:44
Friday, October 27, 2017 05:52:46
Friday, October 27, 2017 05:52:47
Friday, October 27, 2017 05:52:52
Friday, October 27, 2017 05:52:57
Friday, October 27, 2017 05:52:58
Friday, October 27, 2017 05:52:59
Friday, October 27, 2017 05:53:03
Friday, October 27, 2017 05:53:04
Friday, October 27, 2017 05:53:05
Friday, October 27, 2017 05:53:07
Friday, October 27, 2017 05:53:09
Friday, October 27, 2017 05:53:10
Friday, October 27, 2017 05:53:11
Friday, October 27, 2017 05:53:13
Friday, October 27, 2017 05:53:14
Friday, October 27, 2017 05:53:15
Friday, October 27, 2017 05:53:16
Friday, October 27, 2017 05:53:17
Friday, October 27, 2017 05:53:18
Friday, October 27, 2017 05:53:19
Friday, October 27, 2017 05:53:21
Friday, October 27, 2017 05:53:22
Friday, October 27, 2017 05:53:24
Friday, October 27, 2017 05:53:27
Friday, October 27, 2017 05:53:29
Friday, October 27, 2017 05:53:30
Friday, October 27, 2017 05:53:33
Friday, October 27, 2017 05:53:34
Friday, October 27, 2017 05:53:35
Friday, October 27, 2017 05:53:39
Friday, October 27, 2017 05:53:48
Friday, October 27, 2017 05:53:52
Friday, October 27, 2017 05:53:53
Friday, October 27, 2017 05:53:54
Friday, October 27, 2017 05:53:58
Friday, October 27, 2017 05:53:59
Friday, October 27, 2017 05:54:02
Friday, October 27, 2017 05:54:04
Friday, October 27, 2017 05:54:05
Friday, October 27, 2017 05:54:11
Friday, October 27, 2017 05:54:13
Friday, October 27, 2017 05:54:18
Friday, October 27, 2017 05:54:31
Friday, October 27, 2017 06:11:18
Friday, October 27, 2017 06:11:23
Friday, October 27, 2017 09:57:28
Friday, October 27, 2017 09:58:50
Friday, October 27, 2017 09:59:24
Friday, October 27, 2017 09:59:26
Friday, October 27, 2017 09:59:27
Friday, October 27, 2017 09:59:28
Friday, October 27, 2017 09:59:30
Friday, October 27, 2017 09:59:31
Friday, October 27, 2017 09:59:32
Friday, October 27, 2017 09:59:34
Friday, October 27, 2017 09:59:35
Friday, October 27, 2017 09:59:36
Friday, October 27, 2017 09:59:37
Friday, October 27, 2017 09:59:39
Friday, October 27, 2017 09:59:40
Friday, October 27, 2017 09:59:41
Friday, October 27, 2017 09:59:42
Friday, October 27, 2017 10:00:00
Friday, October 27, 2017 10:00:01
Friday, October 27, 2017 10:00:02
Friday, October 27, 2017 10:00:03
Friday, October 27, 2017 10:00:04
Friday, October 27, 2017 10:00:05
Friday, October 27, 2017 10:00:06
Friday, October 27, 2017 10:00:07
Friday, October 27, 2017 10:00:08
Friday, October 27, 2017 10:00:09
Friday, October 27, 2017 10:00:10
Friday, October 27, 2017 10:00:11
Friday, October 27, 2017 10:00:12
Friday, October 27, 2017 10:00:13
Friday, October 27, 2017 10:00:14
Friday, October 27, 2017 10:00:15
Friday, October 27, 2017 10:00:16
Friday, October 27, 2017 10:00:17
Friday, October 27, 2017 10:00:21
Friday, October 27, 2017 10:00:23
Friday, October 27, 2017 10:00:24
Friday, October 27, 2017 10:00:26
Friday, October 27, 2017 10:00:27
Friday, October 27, 2017 10:00:28
Friday, October 27, 2017 10:00:29
Friday, October 27, 2017 10:00:30
Friday, October 27, 2017 10:00:31
Friday, October 27, 2017 10:00:32
Friday, October 27, 2017 10:00:33
Friday, October 27, 2017 10:00:34
Friday, October 27, 2017 10:00:35
Friday, October 27, 2017 10:00:37
Friday, October 27, 2017 10:00:38
Friday, October 27, 2017 10:00:40
Friday, October 27, 2017 10:00:51
Friday, October 27, 2017 10:00:56
Friday, October 27, 2017 10:00:58
Friday, October 27, 2017 10:01:02
Friday, October 27, 2017 10:01:04
Friday, October 27, 2017 10:01:05
Friday, October 27, 2017 10:01:08
Friday, October 27, 2017 10:01:09
Friday, October 27, 2017 10:01:11
Friday, October 27, 2017 10:01:14
Friday, October 27, 2017 10:01:20
Friday, October 27, 2017 10:01:21
Friday, October 27, 2017 10:01:25
Friday, October 27, 2017 10:01:26
Friday, October 27, 2017 10:01:29
Friday, October 27, 2017 10:01:33
Friday, October 27, 2017 10:01:35
Friday, October 27, 2017 10:01:39
Friday, October 27, 2017 10:01:44
Friday, October 27, 2017 10:01:49
Friday, October 27, 2017 10:01:53
Friday, October 27, 2017 10:01:57
Friday, October 27, 2017 10:02:29
Friday, October 27, 2017 10:02:35
Friday, October 27, 2017 10:02:36
Friday, October 27, 2017 10:02:42
Friday, October 27, 2017 10:02:46
Friday, October 27, 2017 10:02:47
Friday, October 27, 2017 10:02:48
Friday, October 27, 2017 10:02:49
Friday, October 27, 2017 10:02:53
Friday, October 27, 2017 10:05:40
Friday, October 27, 2017 10:05:44
Friday, October 27, 2017 10:05:45
Friday, October 27, 2017 10:05:51
Friday, October 27, 2017 10:05:52
Friday, October 27, 2017 10:05:53
Friday, October 27, 2017 10:05:58
Friday, October 27, 2017 10:06:03
Friday, October 27, 2017 10:06:04
Friday, October 27, 2017 10:06:06
Friday, October 27, 2017 10:06:08
Friday, October 27, 2017 10:06:10
Friday, October 27, 2017 10:06:15
Friday, October 27, 2017 10:06:16
Friday, October 27, 2017 10:06:18
Friday, October 27, 2017 10:06:22
Friday, October 27, 2017 10:06:24
Friday, October 27, 2017 10:06:26
Friday, October 27, 2017 10:06:27
Friday, October 27, 2017 10:06:28
Friday, October 27, 2017 10:06:29
Friday, October 27, 2017 10:06:30
Friday, October 27, 2017 10:06:33
Friday, October 27, 2017 10:06:35
Friday, October 27, 2017 10:06:36
Friday, October 27, 2017 10:06:37
Friday, October 27, 2017 10:06:39
Friday, October 27, 2017 10:06:41
Friday, October 27, 2017 10:06:42
Friday, October 27, 2017 10:06:45
Friday, October 27, 2017 10:06:46
Friday, October 27, 2017 10:06:47
Friday, October 27, 2017 10:06:51
Friday, October 27, 2017 10:06:52
Friday, October 27, 2017 10:12:34
Friday, October 27, 2017 10:12:35
Friday, October 27, 2017 10:12:38
Friday, October 27, 2017 10:12:41
Friday, October 27, 2017 10:12:42

[ChrisSmolinski]

I'm convinced that these are just corrupted decodes. I think it's just coincidental that they occurred around the same time. Some big wide noise pulse zapped all the bits in the Ref ID to zero. I'm going to go through the entire station listing file by hand to check and correct any additional stations that have entries of zero for the Ref ID. That may cut down on some of the bogus decodes.

[skeezix]

I've had those two show up together before, with the same times. I don't think four in a row like that, maybe 2 or 3 with some spacing.

[ChrisSmolinski]

Yes, the four in a row is really surprising. But those four decodes all had a transmitted ID of 000 which is really not valid for them, or any other station on that frequency (or maybe anywhere?). I guess that tells us that with the millions of potential decodes checked each night by ADGPS (I really should do the math to see how many) you do get some strange sequences. It's like if you flip a coin a bunch of times, eventually you will get ten heads in a row.