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Author Topic: DGPS Logs Sep 3, 2017 UTC 2335 - Sep 4, 2017 UTC 2354 (AFE822x)  (Read 1432 times)

Offline skeezix

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Bobo showed up for 37307 decodes at 169 degrees, English turn for 664 decodes at 169 degrees, 4224 from Angleton at 187 degrees. These are very close to the minimum of the loop. Yet, nothing from Aransas Pass, which is back on the air. High angle of incidence, perhaps?

Cape Race
Monday, September 4, 2017 05:57:44

Level Island
Monday, September 4, 2017 10:08:38

Sterlegov Cape
Monday, September 4, 2017 21:12:15

Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
1        203  223  243  301.0 100  Cape Aghulas                   South Africa         -34.838  20.021   14,392 103
1        111  422  423  315.0 100  Pondicherry Lt                 India                11.925   79.843   13,649 8   
1        001  301  001  305.0 200  Dhazari                        Bangladesh           22.165   92.055   12,525 354
1        611  622  623  304.0 200  Haozhi Gang                    China                32.017   121.717  10,743 331
1        645  690  691  320.0 200  Nagoya                         Japan                35.042   136.858  9,777  321
1        003  003  001  318.5 100  Sterlegov Cape                 Russia [East]        75.383   88.75    6,627  359
132      879  258  259  286.0 100  Upolu Point, Hi                Hawaii               20.257   -155.885 6,285  266
1        940  338  339  315.0 200  Cape Race, NL                  Canada               46.661   -53.075  3,098  72 
1        891  282  283  295.0 100  Level Island, AK               Alaska               56.467   -133.098 3,014  309
565      942  340  341  288.0 200  Cape Ray, NL                   Canada               47.636   -59.241  2,621  71 
120      885  270  271  292.0 100  Cape Mendocino, CA             United States        40.447   -124.405 2,563  270
1        883  266  267  287.0 100  Pigeon Point, CA               United States        37.189   -122.394 2,561  260
8        909  300  301  309.0 200  Alert Bay, BC                  Canada               50.589   -126.93  2,554  296
13       808  016  017  314.0 200  Card Sound, FL                 United States        25.442   -80.452  2,468  147
5        881  262  263  302.0 100  Point Loma, CA                 United States        32.677   -117.25  2,462  244
425      908  302  303  315.0 200  Tofino [Amphitrite Point], BC  Canada               48.931   -125.545 2,456  292
15783    764  210  211  314.0 200  Lincoln, CA                    United States        38.855   -121.361 2,395  263
3840     886  272  273  287.0 100  Fort Stevens, OR               United States        46.208   -123.96  2,363  284
8136     907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 2,283  292
1        888  276  277  302.0 100  Whidbey Island, WA             United States        48.322   -122.706 2,249  290
112      887  274  275  323.0 200  Robinson Point, WA             United States        47.392   -122.38  2,230  287
27       936  332  333  319.0 200  Point Escuminac, NB            Canada               47.075   -64.8    2,210  74 
122      871  172  173  300.0 100  Appleton, WA                   United States        45.792   -121.332 2,168  282
587      809  018  019  289.0 100  Cape Canaveral, FL             United States        28.467   -80.554  2,162  144
3        939  326  327  295.0 200  Partridge Island, NB           Canada               45.239   -66.056  2,138  80 
22906    827  244  245  312.0 200  Tampa, FL                      United States        27.85    -82.543  2,138  149
10891    799  044  045  290.0 200  Penobscot, ME                  United States        44.453   -68.776  1,942  83 
6160     772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  1,852  93 
12871    771  196  197  294.0 100  New Bern, NC                   United States        35.181   -77.059  1,765  123
967      778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  1,759  132
4224     828  246  247  301.0 100  Angleton, TX                   United States        29.301   -95.484  1,756  187
4116     803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  1,743  98 
11726    927  316  317  309.0 200  Lauzon, QC                     Canada               46.821   -71.165  1,729  75 
664      814  028  029  293.0 200  English Turn, LA               United States        29.886   -89.947  1,709  169
11508    806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  1,670  116
6468     804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   1,659  101
27233    844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  1,595  90 
86       929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  1,574  82 
11214    847  058  059  301.0 200  Annapolis, MD                  United States        39.018   -76.61   1,538  110
1        865  160  161  320.0 200  Millers Ferry, AL              United States        32.095   -87.397  1,528  158
1066     919  308  309  306.0 200  Cardinal, ON                   Canada               44.783   -75.417  1,417  85 
37307    792  136  137  297.0 200  Bobo, MS                       United States        34.125   -90.696  1,233  168
15228    839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  1,170  95 
1234     918  310  311  286.0 200  Wiarton, ON                    Canada               44.75    -81.117  971    87 
28827    838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  883    106
20450    836  112  113  292.0 200  Cheboygan, MI                  United States        45.656   -84.475  704    81 
102096   777  218  219  304.0 200  Mequon, WI                     United States        43.202   -88.066  474    113
49343    831  102  103  298.0 100  Upper Keweenaw, MI             United States        47.233   -88.628  446    55 
51447    830  100  101  296.0 100  Wisconsin, Point WI            United States        46.708   -92.025  219    30 






CURRENT DGPS ADVISORIES FOR 04 Sep 2017

Site Name    Site Id    BNM #    OUTAGE MESSAGE

SCHEDULED / UNSCHEDULED OUTAGES

Biorka   890   0317-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/07/2017 16:00 Z TO 09/09/2017 16:00 Z.

Penobscot   799   0337-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/20/2017 12:00 Z TO 09/21/2017 22:00 Z.

Aransas Pass   816   0323-17   
BROADCAST SITE IS UNUSABLE AS OF 08/25/2017 21:29 Z UNTIL FURTHER NOTICE.

Cape Mendocino   885   0336-17   
BROADCAST SITE STATUS IS UNCONFIRMED DUE TO NETWORK OUTAGE AS OF 09/02/2017 23:29 Z UNTIL FURTHER NOTICE.

Angleton   828   0325-17   
BROADCAST SITE STATUS IS UNCONFIRMED DUE TO NETWORK OUTAGE AS OF 08/27/2017 00:46 Z UNTIL FURTHER NOTICE.

New Bern   771   0321-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/21/2017 10:00 Z TO 09/21/2017 22:00 Z.

Sandy Hook   804   0320-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/05/2017 12:00 Z TO 09/06/2017 20:00 Z.

Robinson Point   887   0334-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/19/2017 16:00 Z TO 09/19/2017 20:00 Z.

Whidbey Island   888   0333-17   
BROADCAST SITE WILL BE UNUSABLE FROM 09/20/2017 17:00 Z TO 09/20/2017 21:00 Z.


CANADIAN DGPS OUTAGES

CURRENT CANADIAN DGPS ADVISORIES FOR 04 Sep 2017

Site Name    Site Id    BNM #    OUTAGE MESSAGE

SCHEDULED / UNSCHEDULED OUTAGES

Western Head      N011-17   
BROADCAST SITE IS OFF AIR AS OF 07/25/2017 15:00 Z UNTIL FURTHER NOTICE.





AFE822x v2.0 SDR with 43' Wellbrook ALA100LN loop oriented E-W
Minneapolis, MN

Offline ChrisSmolinski

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Re: DGPS Logs Sep 3, 2017 UTC 2335 - Sep 4, 2017 UTC 2354 (AFE822x)
« Reply #1 on: September 05, 2017, 1037 UTC »
Quote
Bobo showed up for 37307 decodes at 169 degrees, English turn for 664 decodes at 169 degrees, 4224 from Angleton at 187 degrees. These are very close to the minimum of the loop. Yet, nothing from Aransas Pass, which is back on the air. High angle of incidence, perhaps?

I only had a few (39?) decodes from Aransas Pass that night, and IIRC it they were during a brief period of time. None so far this past night, and the decodes are already to 1010z, perhaps they are still doing work to the site?

Regarding loops at LW, my PVC loop will generate nulls, but they are very sharp, and unstable. Within a few minutes what was nulled is no longer nulled, and is not that much weaker vs the loop maximum. I need to re-adjust the bearing to null again. And some stations are much more difficult to null than others, which may indeed be the angle of incidence. If it is too high, and not directly on the face of the loop, I don't see how electrically you can get a good null.
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 Sep 3, 2017 UTC 2335 - Sep 4, 2017 UTC 2354 (AFE822x)
« Reply #2 on: September 06, 2017, 2338 UTC »
The reception of Bobo and English Turn, speculation -

On p903 of An analysis of continuous records of field intensity at broadcast frequencies, they have a formula with max sky wave field at 580 km. And they correlate that to their graph with peaks at 500 km, 1000 km, 1500 km (read the article for further context).

Taking a look at the distance to Bobo & English Turn, 1,233 km and 1,709, respectively. That are approximately 2x and 3x 600km. Perhaps this is a coincidence and not related specifically to distance.

Will need to look for other stations within ~100km(?) of those two.
Minneapolis, MN