HFU HF Underground
Loggings => DGPS => Topic started by: ChrisSmolinski on February 12, 2018, 1617 UTC
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Another amazing night. I got three Alaska stations, a first for me. I don't think I have ever received Gustavus before. Over 5800 decodes from Azores, and over 11k from Richmond BC.
Gustavus was here for two seconds:
Monday, February 12, 2018 09:08:12
Monday, February 12, 2018 09:08:13
Tofino is quite rare here, but a brief opening:
Monday, February 12, 2018 06:50:24
Monday, February 12, 2018 06:50:46
Count ID ref1 ref2 kHz Baud City Country Lat Lon km Deg
2 746 197 198 288.0 200 Phu Quoc Vietnam 10.018 104.018 14,486 359
4 208 228 248 292.0 100 Cooper Lt South Africa -29.937 31.009 13,527 104
4357 100 400 401 296.0 100 Okha [Humani Pt] India 22.481 69.071 12,255 33
20 614 628 629 295.0 200 Shitang China 28.267 121.617 12,216 343
164 340 480 481 311.5 200 Cabo Carvoeiro Lt Portugal 39.365 -9.411 5,648 67
2 892 284 285 288.0 100 Gustavus, AK Alaska 58.427 -135.706 4,572 317
76 890 280 281 305.0 100 Biorka, AK Alaska 56.858 -135.546 4,564 315
172 891 282 283 295.0 100 Level Island, AK Alaska 56.467 -133.098 4,415 314
5845 342 484 485 308.0 200 Horta Azores 38.533 -28.617 4,122 76
2 908 302 303 315.0 200 Tofino [Amphitrite Point], BC Canada 48.931 -125.545 3,926 302
766 764 210 211 314.0 200 Lincoln, CA United States 38.855 -121.361 3,782 283
11377 907 304 305 320.0 200 Richmond, BC Canada 49.114 -123.183 3,753 302
158 888 276 277 302.0 100 Whidbey Island, WA United States 48.322 -122.706 3,721 300
519 881 262 263 302.0 100 Point Loma, CA United States 32.677 -117.25 3,666 271
985 871 172 173 300.0 100 Appleton, WA United States 45.792 -121.332 3,637 296
7075 972 901 902 302.0 200 Miraflores Panama 8.993 -79.585 3,425 185
216 946 344 345 299.0 200 Rigolet, NL Canada 54.25 -58.5 2,127 34
28643 944 342 343 310.0 200 Cape Norman, NL Canada 51.509 -55.831 2,091 44
9394 940 338 339 315.0 200 Cape Race, NL Canada 46.661 -53.075 2,076 60
228 828 246 247 301.0 100 Angleton, TX United States 29.301 -95.484 2,046 241
42001 808 016 017 314.0 200 Card Sound, FL United States 25.442 -80.452 1,619 193
929 814 028 029 293.0 200 English Turn, LA United States 29.886 -89.947 1,608 231
4357 830 100 101 296.0 100 Wisconsin, Point WI United States 46.708 -92.025 1,444 308
35448 925 320 321 313.0 200 Moise, QC Canada 50.202 -66.119 1,443 32
11003 934 336 337 307.0 200 Fox Island, NS Canada 45.361 -61.097 1,442 59
28550 827 244 245 312.0 200 Tampa, FL United States 27.85 -82.543 1,414 203
55432 792 136 137 297.0 200 Bobo, MS United States 34.125 -90.696 1,367 247
3272 809 018 019 289.0 100 Cape Canaveral, FL United States 28.467 -80.554 1,292 196
1885 936 332 333 319.0 200 Point Escuminac, NB Canada 47.075 -64.8 1,278 46
21922 831 102 103 298.0 100 Upper Keweenaw, MI United States 47.233 -88.628 1,257 316
3479 937 330 331 298.0 200 Hartlen Point, NS Canada 44.583 -63.45 1,238 60
13192 935 334 335 312.0 200 Western Head, NS Canada 43.993 -64.67 1,124 61
35034 939 326 327 295.0 200 Partridge Island, NB Canada 45.239 -66.056 1,085 52
37817 926 318 319 300.0 200 Riviere du Loop, QC Canada 47.762 -69.606 1,073 31
56614 777 218 219 304.0 200 Mequon, WI United States 43.202 -88.066 1,002 296
49284 927 316 317 309.0 200 Lauzon, QC Canada 46.821 -71.165 920 29
1145 836 112 113 292.0 200 Cheboygan, MI United States 45.656 -84.475 901 320
58579 799 044 045 290.0 200 Penobscot, ME United States 44.453 -68.776 858 49
34553 778 192 193 292.0 100 Kensington, SC United States 33.491 -79.349 723 198
41777 929 312 313 296.0 200 St Jean Richelieu, QC Canada 45.324 -73.317 693 24
157 918 310 311 286.0 200 Wiarton, ON Canada 44.75 -81.117 656 330
57202 838 116 117 319.0 200 Detroit, MI United States 42.306 -83.103 590 301
347 919 308 309 306.0 200 Cardinal, ON Canada 44.783 -75.417 579 12
60862 772 198 199 306.0 200 Acushnet, MA United States 41.749 -70.889 561 64
37486 771 196 197 294.0 100 New Bern, NC United States 35.181 -77.059 503 181
63205 844 094 095 324.0 200 Hudson Falls, NY United States 43.272 -73.542 489 35
33693 839 118 119 322.0 100 Youngstown, NY United States 43.239 -78.972 427 338
36804 803 006 007 293.0 100 Moriches, NY United States 40.794 -72.756 378 70
33469 806 012 013 289.0 100 Driver, VA United States 36.963 -76.562 307 173
61231 804 008 009 286.0 200 Sandy Hook, NJ United States 40.475 -74.02 266 70
60594 847 058 059 301.0 200 Annapolis, MD United States 39.018 -76.61 82 158
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Chris, I heard the NDB beacon from northern Canada on 304kHz (+412Hz cw ID 'LT") very strong last night.
But never any chance to hear Alaska.... it should be possible, when Alert Bay, CAN (NU) is so loud... (at least 20db S/N ratio)
lets cross fingers for some good condx...
Ulli, ON5KQ
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Chris, I heard the NDB beacon from northern Canada on 304kHz (+412Hz cw ID 'LT") very strong last night.
But never any chance to hear Alaska.... it should be possible, when Alert Bay, CAN (NU) is so loud... (at least 20db S/N ratio)
lets cross fingers for some good condx...
Ulli, ON5KQ
The BC Canada stations here are tough due to other, closer, stations on the same frequency, except for Richmond BC. I use it as my "beacon" as to how good conditions to the Pacific NW are.
Partridge Island, NB is on 295.0 kHz, which blocks Level Island Alaska, except for cases when Partridge Island fades out. There are no other DGPS stations that I receive normally on either 288.0 or 305.0 kHz, but I think there are NDBs there that block reception of those two Alaska stations.
I have watched the waterfall in real time, and noticed that even my local Annapolis station (only 82 km away) will sometimes completely fade out, which allows Angleton Texas to appear, even though it is over 2,000 km away. I suspect that occasionally there is destructive interference between the ground and sky waves that cancels out a local station (or of course two sky waves for more distant stations), and this is what allows another, less often heard station to sometimes appear.
This leads me to believe that phasing could be a very useful technique to null out one DGPS station to receive another, although it would require continuous re-adjustment of the settings. I have an AFE822x SDR with two antenna inputs I bought specifically for phasing experiments. What might be possible would be to perform the phasing in software, with some method of automatically nulling out the offending station. Ideally this could be done for all of the channels. The trick is coming up with the algorithm. ;D