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Author Topic: DGPS Logs 17-18 Jan 2017  (Read 2149 times)

Offline ChrisSmolinski

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DGPS Logs 17-18 Jan 2017
« on: January 18, 2017, 1558 UTC »
Madeira and the Azores back again. Not as many decodes from Rigolet. I am sure there's a reason for all of this. I'm not sure we'll ever figure it out.

Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
3        907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 3,753  302
22       343  486  487  287.5 200  Porto Santo                    Madeira              33.067   -16.35   5,374  78 
54       886  272  273  287.0 100  Fort Stevens, OR               United States        46.208   -123.96  3,834  297
59       919  308  309  306.0 200  Cardinal, ON                   Canada               44.783   -75.417  579    12 
60       918  310  311  286.0 200  Wiarton, ON                    Canada               44.75    -81.117  656    330
68       871  172  173  300.0 100  Appleton, WA                   United States        45.792   -121.332 3,637  296
101      342  484  485  308.0 200  Horta                          Azores               38.533   -28.617  4,122  76 
111      946  344  345  299.0 200  Rigolet, NL                    Canada               54.25    -58.5    2,127  34 
126      828  246  247  301.0 100  Angleton, TX                   United States        29.301   -95.484  2,046  241
214      927  316  317  309.0 200  Lauzon, QC                     Canada               46.821   -71.165  920    29 
260      816  032  033  304.0 100  Aransas Pass, TX               United States        27.842   -97.065  2,269  241
361      881  262  263  302.0 100  Point Loma, CA                 United States        32.677   -117.25  3,666  271
603      836  112  113  292.0 200  Cheboygan, MI                  United States        45.656   -84.475  901    320
3035     809  018  019  289.0 100  Cape Canaveral, FL             United States        28.467   -80.554  1,292  196
3133     814  028  029  293.0 200  English Turn, LA               United States        29.886   -89.947  1,608  231
3381     936  332  333  319.0 200  Point Escuminac, NB            Canada               47.075   -64.8    1,278  46 
5848     830  100  101  296.0 100  Wisconsin, Point WI            United States        46.708   -92.025  1,444  308
6517     864  158  159  317.0 200  St Paul [Alma], MN             United States        44.306   -91.906  1,333  297
7015     839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  427    338
7522     972  901  902  302.0 200  Miraflores                     Panama               8.993    -79.585  3,425  185
8960     937  330  331  298.0 200  Hartlen Point, NS              Canada               44.583   -63.45   1,238  60 
9494     934  336  337  307.0 200  Fox Island, NS                 Canada               45.361   -61.097  1,442  59 
12942    935  334  335  312.0 200  Western Head, NS               Canada               43.993   -64.67   1,124  61 
16600    971  903  904  307.0 200  Gatun                          Panama               9.261    -79.937  3,398  186
17348    940  338  339  315.0 200  Cape Race, NL                  Canada               46.661   -53.075  2,076  60 
19005    831  102  103  298.0 100  Upper Keweenaw, MI             United States        47.233   -88.628  1,257  316
20871    944  342  343  310.0 200  Cape Norman, NL                Canada               51.509   -55.831  2,091  44 
23224    869  168  169  290.0 200  Louisville, KY                 United States        38.018   -85.31   745    258
31270    827  244  245  312.0 200  Tampa, FL                      United States        27.85    -82.543  1,414  203
35922    925  320  321  313.0 200  Moise, QC                      Canada               50.202   -66.119  1,443  32 
37378    799  044  045  290.0 200  Penobscot, ME                  United States        44.453   -68.776  858    49 
38281    778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  723    198
38586    865  160  161  320.0 200  Millers Ferry, AL              United States        32.095   -87.397  1,262  231
40408    929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
41921    939  326  327  295.0 200  Partridge Island, NB           Canada               45.239   -66.056  1,085  52 
42619    926  318  319  300.0 200  Riviere du Loop, QC            Canada               47.762   -69.606  1,073  31 
44343    806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  307    173
44849    808  016  017  314.0 200  Card Sound, FL                 United States        25.442   -80.452  1,619  193
46570    803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  378    70 
46571    942  340  341  288.0 200  Cape Ray, NL                   Canada               47.636   -59.241  1,671  52 
48890    771  196  197  294.0 100  New Bern, NC                   United States        35.181   -77.059  503    181
68491    863  156  157  311.0 200  Rock Island IL                 United States        42.02    -90.231  1,143  287
71049    777  218  219  304.0 200  Mequon, WI                     United States        43.202   -88.066  1,002  296
72277    838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  590    301
76081    792  136  137  297.0 200  Bobo, MS                       United States        34.125   -90.696  1,367  247
78168    847  058  059  301.0 200  Annapolis, MD                  United States        39.018   -76.61   82     158
78682    870  170  171  309.0 200  Reedy Point, DE                United States        39.569   -75.572  121    97 
80176    772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  561    64 
80227    844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  489    35 
80374    804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   266    70 
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline skeezix

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Re: DGPS Logs 17-18 Jan 2017
« Reply #1 on: January 19, 2017, 0210 UTC »
We probably will never know the reasons from this set of data.

Uncontrolled variables:
- QRM
- Condition of the broadcasting station (transmitter, transmission line, and antenna). The USCG status page is nice, but how accurate is it?
- Hard to determine exactly what's going on with multiple stations on the same frequency.


The first two could be solved.
- Move to a quiet place and carefully build a receive site
- Put a bunch of monitoring stations around the antenna that monitor for signal strength (much like a VOR), and publish the readings.
- Mulitiple stations on a frequency is not going to change. That would mean only 83 stations worldwide. That's not practical.

Minneapolis, MN

Offline ChrisSmolinski

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Re: DGPS Logs 17-18 Jan 2017
« Reply #2 on: January 19, 2017, 1343 UTC »
Agreed, there's lots of factors that make it difficult to tease out propagation effects, vs all the other things happening.

In the case of Rigolet, there's really no on else on 299 now that Sallisaw is QRT, the nearest station is in France. I should say no other DGPS stations on 299, for all I know there's a NDB carrier there causing QRM. Indeed, there is supposedly the VV NDB out in western PA on 299 kHz. Perhaps that is one factor limiting reception of Rigolet.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline jFarley

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Re: DGPS Logs 17-18 Jan 2017
« Reply #3 on: January 19, 2017, 1714 UTC »
Props from the north were very depressed this night, starting out okay around 0100 but tailing off thru the night.  On the other hand props from the south were excellent, with good signals from the Caribbean and South America.  I was able to log several in the Caribbean (a couple of Cubans, the second NDB in PR, Trinidad, and Martinique) and a handful in Colombia, Ecuador, and Honduras.  Peak reception for these was around 0800 - 0930z.

This doesn't completely explain your logs, but that's what we saw here.
Joe Farley, Near Chicago
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Remote Resonant Loops for HF and LF / ALA 1530
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QSLS appreciated to:    jfarley44@att.net

Offline ChrisSmolinski

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Re: DGPS Logs 17-18 Jan 2017
« Reply #4 on: January 19, 2017, 1739 UTC »
Thanks for the corresponding NDB report, jFarley. I always find it interesting to compare listening conditions.   IIRC the K index was 4 for part of the night.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

 

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