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Loggings => DGPS => Topic started by: skeezix on March 11, 2017, 0116 UTC

Title: DGPS Logs Mar 07, 2017 UTC 0253 - Mar 08, 2017 UTC 2331 (AFE822x)
Post by: skeezix on March 11, 2017, 0116 UTC

This was done on a second system using an AFE822x & Wellbrook ALA100LN with 43' wire loop oriented E-W. The decodes were done on ADGPS for windows (someone has to test it) and set to include 0.5 kHz channels.

Two things of interest:
Upolu is valid.

Kuantan. Probably not valid, but what's interesting is that its the only one on 291.0 kHz that I get here, and that includes my main Perseus system.

The stations we have for 291.0 kHz:  
 291.0;100;205;225;245;Cape Recife;South Africa;-34.0369;25.7019
 291.0;200;610;620;621;Yanwei Gang;China;34.4894;119.79
 291.0;200;621;642;643;Sanzao;China;22;113.4
 291.0;100;439;691;-01;Wormleighton;England;52.2081;-1.37361
 291.0;100;364;528;-01;Cabo Salou;Spain;41.05;1.16667
 291.0;100;415;630;631;Djupivogur;Iceland;64.6536;-14.2839
 291.0;200;741;122;123;Kuantan;Malaysia;3.81667;103.333
 291.0;200;380;550;551;Bechet;Romania;43.7522;23.9553

Kuantan is UTC+8, so those times would be 14:14 & 15:17 MYT. Unless Chuck Norris is visiting, pretty safe to assume its not Malaysia, at least by our current understanding of MW propagation.

At that time, it is possible that I could have received Iceland, Romania, England, or Spain, and it was a bad decode. Further, taking into account the transmission rate, the likely candidate would be bad decodes from Romania. Romania is UTC+2, so these times are 08:14 & 09:17 EET, with local sunrise (in Bucharest) of 06:35 EET (04:35 UTC). Grayline is over by then(?). So its likely just noise that just happened to match.


Kuantan
Tuesday, March 7, 2017 06:14:07
Tuesday, March 7, 2017 07:17:08

Upolu Point
Wednesday, March 8, 2017 11:45:04
Wednesday, March 8, 2017 11:45:38
Wednesday, March 8, 2017 11:54:29



Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
2        847  058  059  301.0 200  Annapolis, MD                  United States        39.018   -76.61   1,538  110
2        741  122  123  291.0 200  Kuantan                        Malaysia             3.817    103.333  14,337 338
3        879  258  259  286.0 100  Upolu Point, Hi                Hawaii               20.257   -155.885 6,285  266
5        885  270  271  292.0 100  Cape Mendocino, CA             United States        40.447   -124.405 2,563  270
7        764  210  211  314.0 200  Lincoln, CA                    United States        38.855   -121.361 2,395  263
15       865  160  161  320.0 200  Millers Ferry, AL              United States        32.095   -87.397  1,528  158
17       907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 2,283  292
255      778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  1,759  132
361      809  018  019  289.0 100  Cape Canaveral, FL             United States        28.467   -80.554  2,162  144
582      804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   1,659  101
671      886  272  273  287.0 100  Fort Stevens, OR               United States        46.208   -123.96  2,363  284
834      918  310  311  286.0 200  Wiarton, ON                    Canada               44.75    -81.117  971    87  
2927     777  218  219  304.0 200  Mequon, WI                     United States        43.202   -88.066  474    113
3276     871  172  173  300.0 100  Appleton, WA                   United States        45.792   -121.332 2,168  282
3983     869  168  169  290.0 200  Louisville, KY                 United States        38.018   -85.31   1,030  136
4882     799  044  045  290.0 200  Penobscot, ME                  United States        44.453   -68.776  1,942  83  
10941    771  196  197  294.0 100  New Bern, NC                   United States        35.181   -77.059  1,765  123
15189    806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  1,670  116
23575    839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  1,170  95  
24782    844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  1,595  90  
34136    836  112  113  292.0 200  Cheboygan, MI                  United States        45.656   -84.475  704    81  
40041    831  102  103  298.0 100  Upper Keweenaw, MI             United States        47.233   -88.628  446    55  
43043    792  136  137  297.0 200  Bobo, MS                       United States        34.125   -90.696  1,233  168
48163    838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  883    106
85669    830  100  101  296.0 100  Wisconsin, Point WI            United States        46.708   -92.025  219    30  
130004   863  156  157  311.0 200  Rock Island IL                 United States        42.02    -90.231  421    141
193651   864  158  159  317.0 200  St Paul [Alma], MN             United States        44.306   -91.906  144    122


(http://i.imgur.com/bCcLXen.png)




_{AFE822x SDR with 43' Wellbrook ALA100LN loop oriented E-W}

Title: Re: DGPS Logs Mar 07, 2017 UTC 0253 - Mar 08, 2017 UTC 2331 (AFE822x)
Post by: ChrisSmolinski on March 11, 2017, 1247 UTC

Yes, the Kuantan decodes are probably just noise. I take it that it has never appeared before?

Title: Re: DGPS Logs Mar 07, 2017 UTC 0253 - Mar 08, 2017 UTC 2331 (AFE822x)
Post by: skeezix on March 12, 2017, 1333 UTC

Hasn't happened before, at least not that I remember.