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Updated 2025-08-23 15:17
Photos of the Tecsun PL-990
Many thanks to SWLing Post contributor, George Joachim, who shares the following photo of his recently acquired Tecsun PL-990. George also shared the following comment: I have just received my PL 990 from Ali Express. Suitably impressed everything works as advertised and yes it is the newer (TIME TIMER A TIMER B) version. The serial […]
LRA36 Radio Nacional Arcangel San Gabriel 24 hour marathon non-stop broadcast
Many thanks to SWLing Post contributor, Adrian Korol, of RAE who informs me that LRA36 Radio Nacional Arcangel San Gabriel in Antarctica will broadcast 24 hours non-stop starting at 17:00 UTC on Saturday, The frequency will be 15476 kHz in upper sideband mode. Reception reports can be sent to: tranalra36@radionacional.gov.ar A special eQSL will be […]
The New RX-888 16 bit ADC Direct Sampling SDR with 32 MHz bandwidth
Many thanks to SWLing Post contributor, H. Garcia (PU3HAG), who writes: While doing the daily eBay and AliExpress strolling for new and cool radio stuff, this showed up: RX888 ADC SDR Receiver radio1.8GHz 16bit direct sampling HF UHF VHF HDSDR Like the DragonFly RX-666 you posted about recently, it’s based on IK1XPV Oscar’s BBRF103 works. […]
Radio Northern Europe International August 2020 broadcasts
Many thanks to SWLing Post contributor, Roseanna, with Radio Northern Europe International who shares the following announcement: Hello all, Just writing to announce RNEI #7 & TIAEMS August 2020 starts on Sunday the second of August 2020! Our show is packed with some great pop and dance music from Northern Europe including quite a few Icelandic and […]
FTIOM & UBMP, August 9-15 (New Frequency Added)
From the Isle of Music, August 9-15: This week, our special guest is the multitalented Emilio Martiní, who will share music from the three albums by his Natural Trio including the new one, Elegante. The broadcasts take place: 1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere […]
Kostas’ Yaesu FRG-7 adjustment that improves opposite sideband rejection
Many thanks to SWLing Post contributor, Kostas (SV3ORA), who shares the following video and writes: In this 7.8Mb video (attached) is my solution for “converting” the Yaesu FRG-7 for single signal reception on SSB: Not a mod actually, no additional filters, no soldering of any kind. Just tune the BFO on USB and on LSB […]
Radio Waves: Research on Gen Z Listenership, Early Women in Radio, Carlos Latuff Interview, and “Your Next Tech Purchase Should Be a Radio”
Radio Waves: Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting […]
Rob Sherwood’s presentation: “Transceiver performance for the HF/DX operator”
Many thanks to SWLing Post contributor, Paul, who shares the following video of a recent presentation by Rob Sherwood (NC0B) for Ham Holiday Oklahoma. I love Rob’s presentations because not only is he an authority on testing receivers and transceivers, but he also has a very pragmatic approach to operating radios. Rob speaks to the […]
New Dragonfly wide band SDR with 32 MHz bandwidth
Many thanks to SWLing Post contributor, Franco (K4VZ), who writes: Last night I came across a new SDR receiver from China called ‘RX-666’. On paper its specs are interesting: 16bit ADC, max sample rate 32MHz (in theory one could sample the whole LW+MW+SW bands at the same time), USB 3 interface, and tunable from 1kHz […]
Which would you choose as a first radio–the Icom IC-7300 or Xiegu G90?
Many thanks to SWLing Post contributor, Paul, who writes: This came to me from a friend; he is curious about choosing between the Xiegu G90 and the Icom IC-7300 for his first rig. He has money to buy the Icom which is $999 right now after rebates, but wants to know if he is really […]
Revised August 7 Test Tx Times for FTIOM & UBMP
The August 7 test transmission times for From the Isle of Music and Uncle Bill’s Melting Pot on 9670 kHz, the new frequency on Channel 292, have been changed to From the Isle of Music: 1600-1700 UTC Uncle Bill’s Melting Pot 1700-1800 UTC Reception reports will be appreciated. There will be additional tests throughout August, […]
Covid-19: Popular Yaesu and Alinco rigs meet early demise
No doubt, the Covid-19 global pandemic has had a mostly negative impact on our daily lives. Surprisingly, I found that the impact on the amateur radio world, at first, was quite minimal. Not only did sheltering at home seem to increase the number of operators on the air, but I found that most of […]
Radio Waves: FCC Fines Drone Retailer, High School WSPR Buoy, Flashing Radio Firmware, and “Radio Recliner” Powered by Senior Resident DJs
Radio Waves: Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting […]
New Technician HF Privileges Defined: ARRL board accepts final recommendations of the Band Planning Committee
(Source: ARRL News) During this session, the [ARRL] Board took the following actions: Accepted the final recommendations of the Band Planning Committee. Committee chair and ARRL First Vice President Mike Raisbeck, K1TWF, introduced the motion to adopt the plan. An earlier draft of the plan was introduced at the Board’s in-person January meeting. After the […]
Silphase R1 videos and information about power and antenna ports
We’re starting to get a little more info about the recently posted Silphase R1 SDR receiver. At this point, the radio isn’t in production and is obviously only in a prototype stage so there are a lot of question marks–including if it’ll ever come to fruition. The pandemic is obviously not an ideal time to […]
Converting Tecsun signal meter numbers into five strength units?
Many thanks to SWLing Post contributor, Chris Rolfe (M3OZP), who writes with the following inquiry: Don’t know if anyone can help. I have a Tecsun PL-880, and it shows signal strength in db. How can I work out the signal strength as 1 to 5? All my other radio have 1 to 5 signal strength […]
Giuseppe’s reception of the LRA36 test broadcast
Many thanks to SWLing Post contributor, Giuseppe Morlè (IZ0GZW), who shares the following: Dear Thomas Here is the link of to video regarding the transmission of LRA 36 in USB mode Saturday July 25, 2020 from 17.00 UTC on 15.476 MHz. A good result if I think it was almost impossible to listen to it […]
NASA’s SCAN testbed was an orbiting multi-function SDR
Many thanks to SWLing Post contributor Dan (VR2HF) who writes: “This looks like the world’s most expensive SDR to me. And a little mysterious. Like quantum computing!” (Source: NASA) Space Communications and Navigation (SCAN) Testbed The SCAN Testbed, formerly known as Communications, Navigation, and Networking reConfigurable Testbed (CoNNeCT), served as a test facility for NASA […]
FTIOM & UBMP to test 9670 kHz on Channel 292
From the Isle of Music and Uncle Bill’s Melting Pot will be testing 9670 kHz on Channel 292 from Germany on Friday, August 7. Times are included in the transmission schedules below. Dxers beyond Europe are encouraged to try the broadcast as its effective range is uncertain at this writing. From the Isle of Music, […]
Finally confirmed reception of LRA36 Radio Nacional Arcángel San Gabriel Antarctica
For years now I’ve attempted to get decent reception of LRA36 Radio Nacional Arcángel San Gabriel in Antarctica. At times, I’ve been able to barely hear their AM signal here in North Carolina–at least, see it as a faint line on my spectrum display and barely hear audio rise above the noise. But in truth […]
Radio Globe: A handy way to explore the world of Internet radio
Many thanks to SWLing Post contributor, Dennis Dura, who shares a link to this fascinating project on the excellent Hackday site: […]RadioGlobe lets the user tune in over 2000 stations from around the world by spinning a real globe. It works by using two absolute rotary encoders that each have a whopping 1024 positions available. […]
Free RSGB RadCom Basics July 2020 issue
Many thanks to SWLing Post contributor, Paul Evans, who notes that the Radio Society of Great Britain has made the July 2020 issue of the bi-monthly RadCom Basics free to download. Click here to check out the July 2020 edition on the RSGB website.
The new Silphase R1 SDR receiver
I’ve just learned about a new SDR receiver in development by the Polish company Silphase. It’s called the Silphase R1 and appears to be a stand-alone, high-performance SDR receiver. What could set this receiver apart from the rest is the: Color backlit 5″ TFT touch screen display Magnesium alloy body/chassis USB out for recording and […]
Tom’s amazing 1986 Voyager Experimental Aircraft flight communications recording and QSL card
One of the most amazing things about hosting and curating a massive collection of shortwave radio recordings is listening to each recording as they’re published on the Shortwave Radio Audio Archive (SRAA). SRAA contributor, Tom Gavaras, has shared some brilliant off-air and studio recordings over the years including the following shortwave recording of Voyager Experimental […]
Radio Waves: Switzerland’s Move to Digital, Guyana Rejects USAGM’s Request, Ham Records China/US Encounter, and Farm Radio International Endorsement
Radio Waves: Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting […]
Parks On The Air: Finally biting the CW bullet!
I mentioned in a previous post that one of my Social DX goals was to activate a Parks On The Air (POTA) site in CW (Morse Code). Mission accomplished! Yesterday, I mustered up the nerve and drove to the Blue Ridge Parkway (site K-3378 in POTA). My wife and kids were knee-deep in another project […]
Joint RAE and LRA36 Radio Nacional Arcangel San Gabriel test transmission today July 25, 2020
Many thanks to SWLing Post contributor, Adrian Korol, who shares the following announcement: RAE Argentina to the World, broadcasting from Antarctica RAE will join a trial transmission by LRA36 Radio Nacional Arcangel San Gabriel, broadcasting from Base Esperanza, in the Argentine zone of Antarctica. This Saturday, July 25, between 17:00 and 21:00 UTC, the Antarctic […]
Belka-DSP shortwave receiver now available via Mobimax
Many thanks to Boris (LZ2JR/AC9IJ) who notes that his company, Mobimax, in Europe now distributes the excellent Belka-DSP receiver. Boris informed me that he has inventory and they ship immediately (at time of posting–July 25, 2020). The price is 145.72 EUR (roughly $170 US). They have two shipping options to US: Via International Priority Air […]
China Radio International: Jim seeks help understanding language schedule and transmitter locations
Many thanks to SWLing Post contributor, Jim Meirose, who asks: Each day in NJ I am hearing China Radio International in German on 9.570 MHz. It “fades in” up out of the noise about 2 pm EDT, and strengthens until the broadcast signs off just before 3 pm (1800 UTC). Two things: first, I have […]
Upping my CW pile-up game with Morse Runner
I mentioned in a previous post that I’ve been practicing my CW (Morse Code) skills in an effort to build confidence to do a Parks On The Air (POTA) CW activation. But how in the world do you practice handling a CW pile-up without actually going on the air–? I’m glad you asked! My DXing […]
Video: When “Tomorrow’s World” demonstrated digital radio
Many thanks to SWLing Post contributor, Jason W, who writes: You might be interested in this episode of the BBC series tomorrow’s world from 17th Feb 1993 on YouTube: 10:23 to 14:50 has a introduction and demonstration of digital radio in the UK and concluding with “the experts say we will be fully digital by […]
Photos of the lab599 Discovery TX-500 in the field
Many thanks to SWLing Post contributor, Don (W7SSB), who shares the following photos of the new lab599 Discovery TX-500. Don notes that all of these photos were taken in Russia–where the TX-500 is manufactured–and include a number of Chameleon resonant field antennas. Thanks for sharing these, Don. The thin form-factor of the TX-500, paired with […]
SDRplay RSP1A Metal Cases on eBay again
Many thanks to SWLing Post contributor, Dave Zantow, who notes that the SDRplay RSP1A metal case is available once again on eBay. The price is $24.95 US with free shipping. Click here to view on eBay.
Radio Waves: Radio Six on Shortwave Again, ATN Refrains from Politics, NPR Ratings Drop in C-19, and Grand Central’s Role in Standard Time
Radio Waves: Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting […]
Video: Josh takes us on a tour of the lab599 Discovery TX-500 QRP transceiver
Many thanks to SWLing Post contributor, Josh (KI6NAZ), who shares a link to his YouTube channel where he takes us on a tour of the lab599 TX-500 Discovery: Click here to check out Josh’s channel, Ham Radio Crash Course on YouTube. Thanks for sharing this, Josh! The TX-500 is certainly a unicorn in the world […]
Richard shares recordings of The Buzzer
Many thanks to SWLing Post contributor, Richard Lacroix, I was intrigued by your post, “The ghostly radio station that no one claims to run (BBC Future)”. I attempted to listening to the station on 4625 kHz from my home location here in Toronto, Ontario Canada but unfortunately could not receive the signal. WebSDR to the […]
FTIOM & UBMP, July 26-August 1
From the Isle of Music, July 26-August 1: This week, we present some of the more folkloric selections from the album Bendita Guanabacoa by Los Hermanos Arango with commentary in English as well as some rumba by Afrocuba de Matanzas. The broadcasts take place: 1. For Eastern Europe but audible well beyond the target area […]
How would an Icom IC-705 compare with the Xiegu G90?
Many thanks to SWLing Post contributor, Paul, who asks: How does the Icom compare with the Xiegu G90, besides lack of a built-in antenna tuner, and having lower transmit power, and a better screen? Good question, Paul. The G90 is a great radio for sure and has better specs and features than I would expect […]
HOPE 2020 Conference RF Villiage
Many thanks to SWLing Post contributor, Phillip, who writes: It’s worth sharing that this year’s HOPE conference is a completely on-line event and features an RF Village daily event: “This virtual village will help people experience various wireless communications used by makers, hackers, and amateur radio enthusiasts across the radio frequency (RF) spectrum.” https://www.hope.net/ If […]
Free issues: RASA QTC Winter and July/August 2020 magazines
Many thanks to SWLing Post contributor, Paul Evans, who notes that The Radio Amateur Society of Australia Inc. has made two issues of their QTC Magazine available to view free online. Click here to view the free issues of QTC magazine. Thank you for the tip, Paul!
Can you help Carlos identify this 1982 polytone broadcast?
Many thanks to SWLing Post contributor, Carlos Latuff, who writes: I have a tape with a recording I made in 1982 while listening to shortwave. I’m not really sure if I caught some kind of polytone numbers station. Could you or your readers be able to identify it? Post readers: If you can help Carlos […]
The lab599 Discovery TX-500 QRP transceiver price and anticipated delivery via HRO
This evening, I discovered that HRO now has the long-awaited lab599 TX-500 transceiver available for purchase on their website. I had actually placed an order for the radio, but I’ve asked to cancel it because I should have a loaner available for review. Without a doubt, the TX-500 is one of the most anticipated QRP […]
New Icom IC-705 videos and few answers to your questions
I’ve been getting a number of inquiries from readers lately about the new, yet-to-be-released, Icom IC-705 QRP portable transceiver. Here are a few quick answers to frequent reader questions: “Will you review the IC-705?” Yes, I certainly will. If the loaner unit from Icom has a long lead time, I’ll plan to purchase one from […]
ARI Radio Rivista: Italian amateur radio magazine free issue
Many thanks to SWLing Post contributor, Paul Evans, who notes that the July 2020 issue of Radio Rivista is available to view online or via a PDF download for free this month. Click here to download the July 2020 issue of Radio Rivista (PDF). Thank you for the tip, Paul!
The Halcyon Days of CB Radio
This morning, I read a message from a ham radio operator who was just awarded a vanity call sign in honor of his father’s 1970s era CB radio call sign. He was obviously very proud of the role CB played in his “formative” radio years. Although I often only think of the impact my first […]
LRA36: Radio Nacional Arcángel San Gabriel test broadcasts July 18 and July 25, 2020
Many thanks to SWLing Post contributors Ulis (K3LU) and Harald (DL1AX) who note that Radio Nacional Arcángel San Gabriel (LRA36) will broadcast tests again Saturday July 18th and July 25th, 2020, from 1700 to 2000 UTC on 15476 kHz USB. Check out Harald’s LRA36 QSL card above!
Radio Waves: Narco-Antennas, Pirate Radio Beginnings, Arqiva Restructure and Redundancies, and the Ghostly Buzzer
Radio Waves: Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting […]
The book that took David down the path of SWLing and ham radio
Many thanks to SWLing Post contributor, David (G4EDR), who writes: I enjoyed reading about the vintage shortwave radio book memories from Bob W6ACU and it prompted me dig out the book which got me started in SWLing back in 1970. It was in a series of illustrated teach yourself books and the title was ‘Radio’ […]
Guest Post: What is FM Lightning Scatter DX?
Many thanks to SWLing Post contributor, Bruce Atchison, who shares the following guest post: What is Lightning Scatter DX? by Bruce Atchison (VE6XTC) Believe it or not, it’s possible to receive distant FM stations during a thunder storm. While lightning makes it difficult to hear AM and shortwave broadcasts, its crackles aren’t as evident on […]
John’s mystery book: “Better Shortwave Reception” by William Orr (W6SAI)
Herein lies one of the wonderful things about our SWLing Post community…. Yesterday, we posted a message from John (KC8RZM) asking readers to help identify a vintage radio book that had meaningful impact on his life. Within a few hours, SWLing Post contributor, Bob LaRose (W6ACU), came to the rescue with the following comment: I’ve […]
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