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30th Annual SWL Fest in March
Our sister organization, the North American Shortwave Association (NASWA), hosts its annual gathering the first weekend of March (the 2nd through the 4th) this year just outside Philadelphia. For more information, visit SWLFest.com.
The LOWDOWN This Month In the Feb 2017 issue of the club publication:
"DX Downstairs" Kevin Carey presents members' LF and VLF loggings.
"On The Air" Experimenters operating on the 160-190kHz and lower bands... and...
"The Top End" MedFER and HiFER beacon lists... and ...
"The LF Notebook" Conducted by John Davis. The reunification of Lafayette hits a snag; plus news from, for and about LWCA members.
"The Glorious Days at Old 'PH'" Early-day radio nostalgia about the ancestor of coastal station KPH.
"Longwave Trail Followup: Samoa"
"600 Meter Snapshot" Excerpts of the latest WD2XSH quarterly report by Fritz Raab; WD2XSH summary and news of other Part 5 licensees as well.
In Coming Issues... John Reed tests the WinRadio SDR specifically for its medium- and longwave performance, and the results may surprise you! And soon, we present Kriss Larson's visit to the Antique Wireless Association Museum, a truly fascinating place. Interested in subscribing? Click here for address, rates, and remittance information (including PayPal).
LW Resources & Additional Topics
Related Longwave Sites
William Hepburn's DX Information Centre has probably the best online list of aero and marine beacons based on official license information, plus lists of LW broadcasters and time signals, and numerous resources for other types of DXing as well.
The searchable RNA database of LF beacons...not compiled from official sources, but a digest of signal reports from experienced listeners in North and Central America. It's a great tool for identifying those unknown signals. It won't always be up-to-date regarding decommissioned beacons, of course. This might somewhat limit its usefulness in targeting specific beacons to listen for, but it's still helpful if you pay attention to the most recent reported date for a given beacon.
Radio Waves Below 22 kHz Renato Romero's eclectic collection of topics pertaining to both manmade and natural radio signals from near DC to the upper end of audibility. Includes the VLF Open Lab, and articles by many contributors...some fairly orthodox, and some not. Visit: www.vlf.it
QRSS and WOLF Software
Rik Strobbe's QRSS software (for transmitting extremely slow CW) is usually available from our file library, but while it is temporarily out of service, you can obtain QRSS and Rik's other useful software at the ON7YD download page.
Continuing Development of Argo. Alberto di Bene posts the latest version of Argo, a receiving tool for displaying slow CW, that performs FFT spectral analysis and displays it in ways optimized for QRSS. Many of the transoceanic LF amateur records were set using Argo at the receiving end. Argo has somewhat similar performance to Spectran, but interacts better with the user's soundcard and is customized for QRSS modes.
WOLF. Stewart Nelson devised this unique mode, a variant of BPSK. See his announcement of the MS-DOS version for more details. Now, a GUI-based version by Wolf Büscher continues to increase the mode's popularity. Find the new software at the DL4YHF site.
Spectrum Lab, at that same link, is another of Wolf's creations. In conjunction with your computer's sound card, not only is it an especially advanced spectrum analyzer, but it's also a filtering and sound processing tool, and can serve as the demodulator part of a software defined receiver.
Slow CW for Linux. Claudio Girardi (IN3OTD) has released Slow CW software for users of the Linux operating system, currently v 0.42. The program (called glfer) contains both transmit and receive capability, the latter including an FFT-based spectrum analyzer somewhat similar to those found in popular Windows Slow CW programs.
As with much open-source software in the X-world, you have to compile the C source code yourself. Users will also need additional code libraries. Links to those, plus downloadable source code, can be found at Claudio's glfer page.