HFU HF Underground
Loggings => DGPS => Topic started by: skeezix on November 25, 2016, 1921 UTC
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Day and a half recording with the loop running east-west. Success in Hawaii & Alaska. Danang is definitely false, as the times of decode are during Danang daytime (and I'm not good enough to DX at high noon). The rest appear to be valid catches.
Count ID ref1 ref2 kHz Baud City Country Lat Lon km Deg
5 748 199 200 299.0 200 Danang Vietnam 38.873 121.831 10,043 333
5 908 302 303 315.0 200 Tofino [Amphitrite Point], BC Canada 48.931 -125.545 2,456 292
8 885 270 271 292.0 100 Cape Mendocino, CA United States 40.447 -124.405 2,563 270
11 942 340 341 288.0 200 Cape Ray, NL Canada 47.636 -59.241 2,621 71
18 889 278 279 323.0 100 Annette Island, AK Alaska 55.069 -131.6 2,901 306
23 799 044 045 290.0 200 Penobscot, ME United States 44.453 -68.776 1,942 83
26 891 282 283 295.0 100 Level Island, AK Alaska 56.467 -133.098 3,014 309
57 808 016 017 314.0 200 Card Sound, FL United States 25.442 -80.452 2,468 147
154 879 258 259 286.0 100 Upolu Point, Hi Hawaii 20.257 -155.885 6,285 266
206 909 300 301 309.0 200 Alert Bay, BC Canada 50.589 -126.93 2,554 296
259 919 308 309 306.0 200 Cardinal, ON Canada 44.783 -75.417 1,417 85
296 927 316 317 309.0 200 Lauzon, QC Canada 46.821 -71.165 1,729 75
299 883 266 267 287.0 100 Pigeon Point, CA United States 37.189 -122.394 2,561 260
304 870 170 171 309.0 200 Reedy Point, DE United States 39.569 -75.572 1,585 106
590 929 312 313 296.0 200 St Jean Richelieu, QC Canada 45.324 -73.317 1,574 82
773 888 276 277 302.0 100 Whidbey Island, WA United States 48.322 -122.706 2,249 290
947 887 274 275 323.0 200 Robinson Point, WA United States 47.392 -122.38 2,230 287
1123 881 262 263 302.0 100 Point Loma, CA United States 32.677 -117.25 2,462 244
1421 809 018 019 289.0 100 Cape Canaveral, FL United States 28.467 -80.554 2,162 144
2494 839 118 119 322.0 100 Youngstown, NY United States 43.239 -78.972 1,170 95
3120 803 006 007 293.0 100 Moriches, NY United States 40.794 -72.756 1,743 98
4209 918 310 311 286.0 200 Wiarton, ON Canada 44.75 -81.117 971 87
6482 886 272 273 287.0 100 Fort Stevens, OR United States 46.208 -123.96 2,363 284
7029 772 198 199 306.0 200 Acushnet, MA United States 41.749 -70.889 1,852 93
7449 778 192 193 292.0 100 Kensington, SC United States 33.491 -79.349 1,759 132
12035 907 304 305 320.0 200 Richmond, BC Canada 49.114 -123.183 2,283 292
14756 804 008 009 286.0 200 Sandy Hook, NJ United States 40.475 -74.02 1,659 101
14918 847 058 059 301.0 200 Annapolis, MD United States 39.018 -76.61 1,538 110
15164 865 160 161 320.0 200 Millers Ferry, AL United States 32.095 -87.397 1,528 158
16655 828 246 247 301.0 100 Angleton, TX United States 29.301 -95.484 1,756 187
18519 869 168 169 290.0 200 Louisville, KY United States 38.018 -85.31 1,030 136
18676 827 244 245 312.0 200 Tampa, FL United States 27.85 -82.543 2,138 149
20128 764 210 211 314.0 200 Lincoln, CA United States 38.855 -121.361 2,395 263
30947 836 112 113 292.0 200 Cheboygan, MI United States 45.656 -84.475 704 81
32397 814 028 029 293.0 200 English Turn, LA United States 29.886 -89.947 1,709 169
32593 806 012 013 289.0 100 Driver, VA United States 36.963 -76.562 1,670 116
35893 871 172 173 300.0 100 Appleton, WA United States 45.792 -121.332 2,168 282
40841 771 196 197 294.0 100 New Bern, NC United States 35.181 -77.059 1,765 123
50216 831 102 103 298.0 100 Upper Keweenaw, MI United States 47.233 -88.628 446 55
56460 866 162 163 299.0 200 Sallisaw, OK United States 35.369 -94.817 1,078 187
59434 844 094 095 324.0 200 Hudson Falls, NY United States 43.272 -73.542 1,595 90
64526 830 100 101 296.0 100 Wisconsin, Point WI United States 46.708 -92.025 219 30
78755 838 116 117 319.0 200 Detroit, MI United States 42.306 -83.103 883 106
88294 792 136 137 297.0 200 Bobo, MS United States 34.125 -90.696 1,233 168
127897 862 154 155 322.0 200 St Louis, MO United States 38.619 -89.764 773 156
130479 863 156 157 311.0 200 Rock Island IL United States 42.02 -90.231 421 141
142767 777 218 219 304.0 200 Mequon, WI United States 43.202 -88.066 474 113
147194 864 158 159 317.0 200 St Paul [Alma], MN United States 44.306 -91.906 144 122
(http://i.imgur.com/KlytX1P.png)
Perseus SDR with Wellbrook ALA1530S+ loop oriented E-W
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I've been whining about my QRM. Here's what it looks like in four screen shots. All from the Perseus with the Wellbrook ALA1530S+ taken late morning CST. Loop was in four positions: N-S, E-W, NE-SW. and NW-SE. Maximum QRM is E-W and minimum is N-S. Buried telephone nearby (runs N-S) unknown about buried power. House is served with underground power, but house is 75' away. Straight east is underground vault for power going into my house, so perhaps the dirty power here has now become even filthier.
Minimum QRM, NW-SE:
(http://i.imgur.com/FREzAJD.png)
Maximum QRM, NE-SW:
(http://i.imgur.com/UDsfbJd.png)
North-South (minimum QRM):
(http://i.imgur.com/2CLpFlF.png)
East-West (maximum QRM):
(http://i.imgur.com/LAwgrIq.png)
Spectrum display of max QRM (E-W), with peak hold set.
(http://i.imgur.com/JfAhgCi.png)
Note: Edited since original post. Found that antenna angle was about 45 deg off from what the dial said. Took new screenshots and added the spectrum.
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I seem to have some newish QRM source just above 305 kHz I need to track down.
Nice catches. Chuck Norris could pick up Danang at noon, of course.
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Was tuning around a short time ago (~2300 UTC) and now some sporadic QRM has set in, fairly strong repetitive static across LW & MW (different than the QRM earlier in this thread). With this much QRM, not much DXing tonight. >:(
From ~2320 to ~2340, had some sort of data that is across LW, MW, and HF, with its signal every ~16 kHz. This one is periodic and has been going on for many years. Not the water nor power meters (those are 900 MHz).
Dear FCC, you want to revitalize AM? Start with cleaning up the spectrum. Yes, I've brought that up before and will continue to do so. I always thought jamming was illegal- regardless of its intentional or not. This sort of QRM interferes with the DGPS signals and could cause problems with navigation. Safety & all of that.