Posts Tagged ‘SDR’
SDR receivers and transceivers
March 27th, 2017 | 
Author: There is a real gap in my knowledge as I have never once tried an SDR based receiver or transceiver. SDR dongles are very low cost, so I really have no excuse.
On the Southgate site I read news of a new SDR 5W transceiver.
Worldwide SDR’s Online
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| The University of Victoria online SDR from SDR.hu |
The site is run by Andras Retzler, the author of the OpenWebRX software that enables these SDR's to be made seamlessly available online through your web browser. Since all of the sites use the same software, all receivers appear the same, thus providing a very short operational learning curve. At the time of this posting, there were 76 online SDRs, a number that fluctuates slightly throughout the day. Conveniently, the site also indicates how many users are currently using any individual receiver.
I can think of several very handy uses of such a resource, from checking your own on-air signal to confirming, in real time, a suspected DX catch that you might be hearing from your own location. You may even be interested in putting your own SDR online for others to share. It really is a very useful resource and while there, check out the rest of Andras's interesting site.
What Mode Is That?
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| 'JT-9' - courtesy: http://www.sigidwiki.com/ |
A recent link posted on the ON4KST 2200/630m chat page brought up a very helpful web site.
The Sigidwiki site lists examples of the various transmission modes being used from LF to UHF, along with examples of what these signals look like on a waterfall display.
With the proliferation of digital modes found on-the-air today, it's often fairly baffling, trying to figure out what you are hearing. The main database page contains a staggering 272 different identified modes of transmitting information, in one way or another ... no wonder it's hard to keep track!
Clicking on any of the modes will bring up more details about the mode, sometimes with links to the decoding software and further reading.
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| 'PICCOLO' - courtesy: http://www.sigidwiki.com/ |
I'm sure there are more that aren't on the list (is WSPR there or did I just miss it?) but it's still an impressive and helpful collection for those that use a waterfall display on their receivers.
LHS Episode #160: Tipsy Cow Tipping
Welcome to Episode #160 of Linux in the Ham Shack. In this episode, minus one VE2XPL, your hosts discuss amateur radio scholarships, the demise of a legendary kit maker, several Linux tutorial sites, a new web-based SDR resource, WSPR, a logger for Android and much, much more. Thanks for listening, and Happy New Year!
73 de The LHS Crew
CLE 199 Results
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| courtesy: http://sdo.gsfc.nasa.gov/ |
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| courtesy: http://wdc.kugi.kyoto-u.ac.jp/dst_realtime/presentmonth/index.html |
:Issued: 2015 Oct 27 0010 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 26 October follow.
Solar flux 106 and estimated planetary A-index 3.
The estimated planetary K-index at 0000 UTC on 27 October was 0.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.
=-=-=-=- Trends -=-=-=-=-=--
Date 25 25 25 25 25 26 26 26 26 26 26 26 26 27
UTC 0900 1200 1500 1800 2100 0000 0300 0600 0900 1200 1500 1800 2100 0000
SFlx 106 106 106 106 106 106 106 106 106 106 106 106 106 106
A-in 11 11 11 11 9 8 8 8 8 8 8 8 3 3
K-in 3 2 3 2 1 1 1 0 1 1 0 0 0 0
Current Solar information
available at http://www.am-dx.com/wwv.htm
**************************************
The following NDB stations were logged here using the Perseus SDR along with my inverted-L and 10' x 20' loop. CLE 199 was an 'A-B-C' event, calling only for countries or states / provinces beginning with those letters.
Time Freq ID Location
24 13:00 209 CYT Yakataga Apt, ALS
24 13:00 212 CGL Coghlan Island - Juneau, ALS
24 13:00 223 AFE Kake Apt, ALS
24 13:00 229 AKW Klawock Apt, ALS
24 13:00 233 ALJ Hinchinbrook Island, ALS
24 13:00 245 HNS Haines, ALS
26 12:00 251 OSE Bethel Apt, ALS
24 13:00 266 ICK Annette Island, ALS
26 13:00 275 CZF Cape Romanzof LRRS Apt, ALS
24 14:00 281 CRN Sparrevohn LRRS, ALS
26 14:00 338 CMQ Campbell Lake (Anchorage), ALS
26 13:00 341 ELF Cold Bay, ALS
24 13:00 350 VTR McGrath, ALS
26 13:00 355 AUB King Salmon, ALS
24 13:00 358 SIT Sitka, ALS
24 13:00 372 FPN Petersburg, ALS
24 13:00 376 PVQ Deadhorse, ALS
26 14:00 379 IWW Kenai, ALS
24 13:00 382 JNR Unalakleet, ALS
24 11:00 385 OCC Yakutat, ALS
24 13:00 390 HBT Sand Point, ALS
24 13:00 390 AES Northway, ALS
24 13:00 391 EEF Sisters Island, ALS
24 13:00 394 RWO Kodiak, ALS
24 13:00 396 CMJ Ketchikan IAP, ALS
24 14:00 404 GCR Cordova, ALS
24 13:00 414 IME Sitka Apt, ALS
24 13:00 429 BTS Dillingham, ALS
24 14:00 525 ICW Nenana, ALS
24 13:00 529 SQM Big Level Isl, ALS
24 04:00 207 PY Fort Chipewyan, AB, CAN
24 04:00 215 ZAB Edmonton (Intl Apt), AB, CAN
24 14:00 221 QU Grande Prairie, AB, CAN
26 12:00 225 X5 Vegreville, AB, CAN
26 00:20 227 9X Brooks Apt, AB, CAN
24 04:00 230 VG Vermilion, AB, CAN
26 12:00 234 3Y Donnelly, AB, CAN
24 04:00 239 OJ Footner Lake, AB, CAN
24 04:00 241 YLL Lloydminster, AB, CAN
24 04:00 248 QL Lethbridge, AB, CAN
24 04:00 254 ZYC Calgary, AB, CAN
24 04:00 266 XD Edmonton, AB, CAN
26 09:00 272 YLB Lac La Biche, AB, CAN
24 04:00 287 PE Peace River, AB, CAN
24 04:00 292 ZET Edmonton, AB, CAN
24 04:00 295 8C Fairview, AB, CAN
24 04:00 299 TV Turner Valley, AB, CAN
24 04:00 304 FH Mc Leod, AB, CAN
24 04:00 305 Z1 Three Hills, AB, CAN
26 12:00 307 M5 Manning, AB, CAN
24 04:00 308 ZZD Edmonton, AB, CAN
24 04:00 311 9Y Pincher Creek, AB, CAN
24 04:00 328 5J Coronation, AB, CAN
24 04:00 329 X2 Athabasca, AB, CAN
24 04:00 332 XH Medicine Hat, AB, CAN
24 04:00 334 P2 Wetaskiwin, AB, CAN
24 04:00 338 ZU Whitecourt, AB, CAN
24 04:00 343 YZH Slave Lake, AB, CAN
26 04:00 344 YOP Rainbow Lake, AB, CAN
26 00:29 344 YC Calgary, AB, CAN
24 04:00 353 5F Chevron, AB, CAN
26 05:00 361 E3 Wabasca, AB, CAN
24 04:00 362 6T Foremost, AB, CAN
24 04:00 379 ZEG Edmonton Intl, AB, CAN
24 04:00 385 3M Drayton Valley, AB, CAN
24 04:00 388 MM Fort Mc Murray, AB, CAN
24 04:00 388 JW Jumping Pound Creek, AB, CAN
24 04:00 398 YOD Cold Lake, AB, CAN
24 04:00 405 9G Sundre, AB, CAN
24 04:00 405 2K Camrose, AB, CAN
24 04:00 408 Z7 Claresholm, AB, CAN
26 08:00 414 8M Elk Point, AB, CAN
24 13:00 206 SOW Show Low, AZ, USA
24 12:00 338 RYN Tucson, AZ, USA
24 13:00 403 AZC Colorado City, AZ, USA
24 11:00 410 DAO Sierra Vista, AZ, USA
26 04:00 376 ZIN Matthew Town, BAH
24 04:00 200 YJ Sidney Island, BC, CAN
26 08:00 200 YDL Dease Lake, BC, CAN
24 04:00 200 UAB Anahim Lake, BC, CAN
24 04:00 203 ZKI Kitimat, BC, CAN
24 04:00 203 YBL Campbell River, BC, CAN
24 04:00 206 EF Castlegar, BC, CAN
24 04:00 214 LU Abbotsford, BC, CAN
24 20:38 218 PR Prince Rupert, BC, CAN
24 04:00 223 YKA Kamloops, BC, CAN
24 04:00 227 CG Castlegar, BC, CAN
26 00:33 230 YD Smithers, BC, CAN
24 04:00 236 YZA Ashcroft, BC, CAN
24 04:00 242 ZT Port Hardy, BC, CAN
24 20:42 242 XC Cranbrook, BC, CAN
26 00:34 246 ZXJ Fort St. John, BC, CAN
24 20:46 248 ZZP Queen Charlotte Is, BC, CAN
24 04:00 250 2J Grand Forks, BC, CAN
24 04:00 251 YCD Nanaimo, BC, CAN
24 04:00 257 LW Kelowna, BC, CAN
24 04:00 260 ZXS Prince George, BC, CAN
24 04:00 260 YSQ Atlin, BC, CAN
24 04:00 261 D6 Fairmont Hot Springs, BC, CAN
26 00:15 266 VR Vancouver, BC, CAN
24 04:00 269 YK Castlegar, BC, CAN
24 04:00 272 XS Prince George, BC, CAN
26 13:00 278 1U Masset, BC, CAN
24 04:00 290 YYF Penticton, BC, CAN
24 04:00 293 MB Mill Bay, BC, CAN
24 04:00 302 6K Vernon, BC, CAN
24 04:00 312 UNT Naramata, BC, CAN
24 04:00 325 YJQ Bella Bella, BC, CAN
24 04:00 326 XJ Fort St. John, BC, CAN
24 04:00 326 DC Princeton, BC, CAN
24 04:00 332 XT Terrace, BC, CAN
24 04:00 332 WC White Rock, BC, CAN
24 04:00 344 XX Abbotsford, BC, CAN
24 04:00 350 NY Enderby, BC, CAN
24 04:00 356 ON Penticton, BC, CAN
24 04:00 359 YQZ Quesnel, BC, CAN
24 04:00 359 YAZ Tofino, BC, CAN
24 04:00 364 4D Helmet, BC, CAN
24 04:00 368 ZP Sandspit, BC, CAN
24 04:00 368 SX Cranbrook, BC, CAN
24 04:00 374 EX Rutland, BC, CAN
24 04:00 378 AP Mayne Island, BC, CAN
24 04:00 382 YPW Powell River, BC, CAN
24 04:00 382 YE Fort Nelson, BC, CAN
24 04:00 385 WL Williams Lake, BC, CAN
24 04:00 389 YWB Kelowna, BC, CAN
24 04:00 394 DQ Dawson Creek, BC, CAN
24 04:00 400 QQ Comox, BC, CAN
24 04:00 414 YZK Harper Ranch, BC, CAN
24 13:00 203 TCY Tracy, CA, USA
24 13:00 205 COR Corcoran, CA, USA
24 13:00 209 HGT Hunter Liggett - Tusi AHP, CA, USA
24 13:00 233 LG Seal Beach, CA, USA
24 13:00 335 CC Concord, CA, USA
24 13:00 344 FCH Chandler, CA, USA
24 10:00 370 PAI Pacoima - Whiteman Apt, CA, USA
24 11:00 374 LV Livermore, CA, USA
24 11:00 385 MR Pacific Grove, CA, USA
24 11:00 397 SB San Bernardino, CA, USA
24 11:00 404 MOG Montegue, CA, USA
24 04:00 415 CBC Cayman Brac, CYM
24 13:00 209 ITR Burlington, CO, USA
24 07:00 260 AP Sedalia, CO, USA
24 07:00 329 TAD Trinidad, CO, USA
26 11:00 373 TF Pueblo, CO, USA
24 11:00 392 BAJ Sterling, CO, USA
24 11:00 400 FN Fort Collins, CO, USA
24 11:00 407 CO Fountain, CO, USA
LHS Episode #151: Astronaughty
Greetings! We have a super episode for you this time around. It's 151 Proof and packed with information on the Dayton Hamvention, NASA launches, lightweight Linux distributions that might be great in your ham shack, Android apps for amateur radio use and a whole lot more. Thanks for tuning in, and we hope you enjoy this episode. If you have comments or questions, please don't hesitate to send us voice mail or e-mail feedback. We'd love to hear from you.
73 de The LHS Guys
LHS Episode #149: Coming Up Lemons
Hello again, and welcome to Episode #149 of Linux in the Ham Shack. In this episode we tackle a number of interesting and diverse topics: Starting with Field Day and an online course on Climate Change, we move to software patent legislation, deep topics like buildroot and custom Linux images, and then to hardware reverse engineering for your benefit and a utility for helping you save battery power on your laptop. We even manage to get in an interview with our ambassador to SELF, Darrell, KI4LLA. Don't miss one action-packed second.
73 de The LHS Guys
