The Sun, QRM and CLE189

Courtesy: http://www.solen.info/solar/
Those of you following the CLE low frequency NDB listening events, will know that this past one was longer than usual, running from December 25th to January 6th. Once again, the sun demonstrated its nasty-side, right on schedule. Conditions from this part of the continent were dreadful, while others, further to the south, were not as badly affected.

The cause of the poor propagation was a continual coronal hole stream, from a very large area in the sun's southern regions, as shown here. Now it appears that Coronal Hole 649, in the north, is about to swing into a geoeffective position, and take over the task of disrupting propagation.

CLE189 covered the range of 275-425KHz, with the objective of logging at least one beacon (preferrably the farthest one) on each available channel (150 in total). There are a number of channels that have no NDBs as well as many that get completely clobbered by 1 Kw DGPS (digital QRM) navigation signals along the coasts and the Great Lakes. Additionaly, I was fighting the new noisemaker in my neighborhood, which has yet to be eliminated.

Here is a screen shot of my Perseus receiver, showing the crud being generated...every 60Hz and never constant...drifting in and out of the desired passband continually. The only way to hear signals was to wait until there was a short hole created by the drifters going by. I will be happy when this is issue is finally resolved.

My log shows 111 stations in total, a surprising number, considering the poor propagation and the QRM. If anything, this demonstrates just what a superb receiver the Perseus SDR is:

29 01:26 275 HIN 1053 Whitney - Chadron Muni Apt, NE, USA
31 13:00 277 ACE 1344 Kachemak - Homer Apt, ALS
31 15:00 278 1U 521 Masset Municipal Apt, BC, CAN
31 15:00 280 GYZ 1005 Camp Guernsey - Guernsey, WY, USA
31 15:00 281 CRN 1510 Cairn Mtn - Sparrevohn LRRS, ALS
31 15:00 283 DUT 1867 Dutch Harbor - Unalaska Apt, ALS
29 09:00 284 QD 1014 The Pas Municipal Apt, MB, CAN
31 04:00 286 EKS 600 Ennis - Big Sky Apt, MT, USA
29 09:00 287 ZWG 1168 Winnipeg, MB, CAN
29 09:00 290 YYF 171 Penticton, BC, CAN
29 09:00 292 ZET 518 Devon - Edmonton IAP, AB, CAN
29 09:00 293 MB 18 Mill Bay - Sidney, BC, CAN
29 09:00 295 8C 537 Fairview Municipal Apt, AB, CAN
31 15:00 296 LGD 349 La Grande, OR, USA
29 09:00 299 TV 417 Turner Valley, AB, CAN
29 09:00 300 YIV 1272 Island Lake Apt, MB, CAN
29 09:00 302 QW 705 North Battleford, SK, CAN
29 09:00 304 FH 485 Mc Leod (Whitecourt), AB, CAN
29 09:00 305 YQ 1362 Churchill / Eastern Creek, MB, CAN
29 06:00 308 ZZD 515 Calmar (Edmonton Intl Apt), AB, CAN
29 08:00 311 9Y 421 Pincher Creek, AB, CAN
29 08:00 312 UNT 173 Naramata, BC, CAN
31 08:00 317 VC 873 La Ronge, SK, CAN
29 12:00 320 YQF 469 Red Deer - Penhold, AB, CAN
29 12:00 323 HJH 1393 Hebron Municipal Apt, NE, USA
31 06:00 325 YJQ 312 Bella Bella (Campbell Island), BC, CAN
29 12:00 326 DC 131 Princeton Municipal Apt, BC, CAN
29 07:00 328 YTL 1465 Big Trout Lake, ON, CAN
29 12:00 329 YEK 1414 Arviat, NU, CAN
02 09:00 330 2A 1147 South Indian Lake Apt, MB, CAN
29 13:00 332 POA 2681 Pahoa - Hawaii Island, HWA
29 09:00 333 STI 540 'Sturgeon' Mountain Home, ID, USA
29 09:00 334 YER 1560 Fort Severn, ON, CAN
29 09:00 335 YLD 1813 Chapleau - Devon, ON, CAN
29 12:00 336 LF 1167 La Salle, MB, CAN
29 09:00 337 7D 956 Hudson Bay, SK, CAN
29 08:00 338 RYN 1316 Ryan Field Apt - Tucson, AZ, USA
29 09:00 339 6X 1237 York Landing, MB, CAN
29 09:00 340 YY 2452 Mont Joli, QC, CAN
31 15:00 341 ELF 1710 Elfee - Cold Bay, ALS
29 12:00 342 PFT 1232 Piney - Pinecreek Border Apt, MN, USA
29 12:00 343 YZH 571 Slave Lake Municipal Apt, AB, CAN
29 14:00 344 FCH 857 Chandler - Fresno, CA, USA
29 09:00 346 YXL 1401 Sioux Lookout Municipal Apt, ON, CAN
29 09:00 347 PA 814 Prince Albert, SK, CAN
29 12:00 348 MNC 112 'Mason Co' Shelton, WA, USA
29 09:00 349 GW 1999 'Teock' Greenwood, MS, USA
29 08:00 350 RG 1604 GALLY - Oklahoma City, OK, USA
31 08:00 351 YKQ 1948 Waskaganish, QC, CAN
29 09:00 353 LLD 2684 Lanai - Lanai Island, HWA
29 09:00 355 YWP 1572 Webequie, ON, CAN
29 09:00 356 ZF 995 Yellowknife, NT, CAN
29 09:00 358 SIT 750 Sitka - Biorka Island, ALS
29 09:00 359 SDY 879 Sidney, MT, USA
29 09:00 360 SW 1267 'Roadd' Warroad, MN, USA
29 09:00 361 E3 630 Wabasca, AB, CAN
29 09:00 362 YZS 1807 Coral Harbour, NU, CAN
29 09:00 364 4D 735 Helmet, BC, CAN
29 09:00 365 HQG 1362 Hugoton Municipal Apt, KS, USA
29 07:00 366 YMW 2179 Maniwaki, QC, CAN
29 09:00 367 R5 1038 Pukatawagan Apt, MB, CAN
02 10:00 368 PNM 1402 Princeton Municipal Apt, MN, USA
29 13:00 370 YBV 1169 Berens River Apt, MB, CAN
29 09:00 371 GW 1946 Jarpik - Kuujjuarapik, QC, CAN
29 09:00 372 ZPA 824 Glass (Prince Albert), SK, CAN
29 09:00 373 TF 1191 ARUBA - Pueblo Mem Apt, CO, USA
29 13:00 374 LV 776 REIGA - Livermore, CA, USA
29 09:00 375 BM 1163 Balmoral, MB, CAN
29 09:00 376 YAG 1345 Fort Frances, ON, CAN
29 09:00 377 EHA 1350 Elkhart - Morton County Apt, KS, USA
29 12:00 378 OT 381 EMIRE - North Bend, OR, USA
29 09:00 379 YBE 945 Uranium City, SK, CAN
29 09:00 380 OEL 1297 Oakley Municipal Apt, KS, USA
29 09:00 382 YPL 1461 Pickle Lake, ON, CAN
29 09:00 383 CNP 1146 Chappell, NE, USA
29 09:00 384 3F 792 Ile-a-la-crosse, SK, CAN
29 15:00 385 EHM 1693 Cape Newenham LRRS Apt, ALS
29 09:00 386 HAU 558 Hauser - Helena, MT, USA
02 09:00 387 CAV 1473 Clarion, IA, USA
29 08:00 388 AM 2596 'Picny' Tampa, FL, USA
29 13:00 389 CSB 1275 Harry Strunk - Cambridge Muni, NE, USA
29 10:00 390 HBT 1620 Borland - Sand Point Apt, ALS
29 09:00 391 DDP 3772 Dorado - Vega Baja, PTR
29 12:00 392 XVG 1344 Longville, MN, USA
29 09:00 393 BR 2101 'Depoo' Brownsville, TX, USA
29 09:00 394 RWO 1333 Woody Island - Kodiak, ALS
29 09:00 395 ULS 1342 Ulysses Apt, KS, USA
29 09:00 396 YPH 1923 Inukjuak Apt, QC, CAN
29 09:00 397 ZSS 760 Yellowhead (Saskatoon), SK, CAN
29 09:00 398 3D 965 Cumberland House, SK, CAN
29 09:00 399 ZHD 1371 'Thunder' Dryden, ON, CAN
29 09:00 400 FN 1071 COLLN - Fort Collins, CO, USA
29 09:00 400 CKN 1220 Crookston, MN, USA
29 09:00 401 YPO 1644 Peawanuck Apt, ON, CAN
29 09:00 402 L4 888 Nipawin, SK, CAN
29 13:00 403 AZC 971 Colorado City Municipal Apt, AZ, USA
29 15:00 404 GCR 1185 Glacier River - Cordova Apt, ALS
29 14:00 405 2K 538 Camrose, AB, CAN
29 09:00 406 YLJ 725 Meadow Lake, SK, CAN
29 08:00 407 CO 1157 PETEY - Fountain, CO, USA
29 09:00 408 MW 221 PELLY - Moses Lake, WA, USA
29 10:00 408 JDM 1270 Wheatfield - Colby, KS, USA
29 12:00 410 GDV 860 Glendive - Dawson Comm Apt, MT, USA
29 09:00 412 1W 996 Sandy Bay, SK, CAN
29 12:00 413 YHD 1361 Dryden Regional, ON, CAN
29 09:00 414 GRN 1094 Gordon, NE, USA
29 09:00 415 CBC 3129 Cayman Brac - West End, CYM
29 09:00 417 IY 1508 CHUKK - Floyd, IA, USA
29 09:00 419 RYS 1975 Detroit / Grosse Ile, MI, USA
29 09:00 420 FQ 1422 MONTZ - East Chain, MN, USA
29 09:00 421 VLY 1721 McKenney, TX, USA


Once again, the 10' x 20' loop was employed for the entire affair, surviving two bad wind storms during the listening event.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

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