(Source: SDRplay Facebook Page)
SDRplay is pleased to announce Ham Radio Outlet as our exclusive authorized distributor in North America. Right now initial stocking quantities are in place at 10 of their 13 stores nationwide and we plan to stock all 13 shortly.
This is excellent news for North American users as delivery will now be much quicker – no more waiting for shipments stuck in customs! This will also allow customers to get hands-on experience with the RSP in HRO’s retail stores.
Many thanks to Mauno Ritola who shares a link to the following schedule from the DRM Consortium via the WRTH Facebook page:
During IBC, Babcock will be transmitting DRM service from the UK, towards Europe.
[Friday September 11, 2015 to September 15, 2015]
1600-1700 local Amsterdam time (1400-1500 GMT), BAB Woofferton, 100 kW, 6040 kHz, 114 degrees (Programme TBA)
1700-1800 local Amsterdam time (1500-1600 GMT), BAB Woofferton, 100 kW, 6040 kHz, 114 degrees (BBC WS English)
Last week, I received a tip from SWLing Post contributor, Dan Robinson: Radio Biafra, a new clandestine station, was audible on 15,560 kHz via the Universite Twente Web SDR.
Despite miserable propagation conditions, I tuned my receiver to 15,560 kHz and was surprised to hear a weak signal from Radio Biafra, here in North Carolina. I recorded a few minutes before conditions changed and Biafra’s signal began to fade.
This was the first time I had logged Radio Biafra, so I was amazed to have copy clear enough to understand.
Wikipedia has a short entry for Radio Biafra:
Radio Biafra also known as Voice of Biafra, is a radio station that was originally founded by the government of the Republic of Biafra but is currently operated by Mazi Nnamdi Kanu. Believed to have had its first transmission before the Nigeria-Biafra war, the radio station was instrumental in the broadcast of speeches and propaganda by Chukwuemeka Odumegwu Ojukwu to the people of the Republic of Biafra.
[…]Radio Biafra currently transmits via the internet and shortwave broadcast targeted majorly around Eastern Nigeria. Radio Biafra claims to be broadcasting the ideology of Biafra –”Freedom of the Biafra people”.
[…]Radio Biafra has been met with mixed reactions. While some critics have criticized the station for “inciting war” through its programmes and “preaching hate messages” against Nigeria which it refers to as a “zoo”, an editor for Sahara Reporters wrote in defence of the radio station after he compared Radio Biafra with the British Broadcasting Corporation Hausa service.
On 14 July 2015, it was reported in the media that the radio station had been jammed because it did not have a broadcast license from the Nigerian Broadcasting Commission. However, the radio station in a swift reaction labelled such claims as “lies” and went on to release its new frequency details to the public.
To put this in perspective, the Wikipedia entry for Radio Biafra is rather new, having only been created in August, 2015.
The following recording was made using my WinRadio Excalibur hooked up to a large skyloop antenna:
This two hour recording, by Dan Robinson, was made via the Universite Twente Web SDR in the Netherlands:
Post Readers: Have you logged Radio Biafra in your part of the world?
While browsing the Elad website, I noticed an End of Summer sale on their US retail page.
The sale includes one of my favorite sub-$1000 SDRs–the Elad FDM-S2–priced at $499 US (originally $580). If you’ve been on the fence about purchasing the FDM-S2, this might be a good time to bite the bullet. Certainly a great value, in my book. Click here to read my review.
Note that the Elad FDM-DUO stand-alone SDR transceiver and FDM-S1 receiver are also on sale.
I don’t see an indication of when the sale ends, but I assume it may last until the end of summer. If interested, you might contact the Elad sales department to confirm.
IBOC Spectrum (Source: GPS World)
SWLing Post contributor, Richard Langley, is not only a dedicated shortwave DXer, but he’s also on the faculty of the Department of Geodesy and Geomatics Engineering at the University of New Brunswick. Additionally, Richard coordinates Innovation: a regular GPS World feature that discusses advances in GPS technology and its applications.
The latest Innovation feature is absolutely fascinating in that it highlights the potential for AM broadcast band HD radio signals (IBOC) to be an effective navigation aid. Richard’s introduction to this article takes us back to the time of Reginald Fessenden:
THE YEAR WAS 1906. On Christmas Eve of that year, Canadian inventor Reginald Fessenden carried out the first amplitude modulation (AM) radio broadcast of voice and music. He used a high-speed alternator capable of rotating at up to 20,000 revolutions per minute (rpm). Connected to an antenna circuit, it generated a continuous wave with a radio frequency equal to the product of the rotation speed and the number of magnetic rotor poles it had. With 360 poles, radio waves of up to about 100 kHz could be generated. However, Fessenden typically used a speed of 10,000 rpm to produce 60 kHz signals. By inserting a water-cooled microphone in the high-power antenna circuit, he amplitude-modulated the transmitted signal. On that Christmas Eve, he played phonograph records, spoke and played the violin with radio operators being amazed at what they heard.
Fessenden had earlier worked with spark-gap transmitters, as these were standard at the time for the transmission of Morse code, or telegraphy, the wireless communication method already in use. But they couldn’t generate a continuous wave and couldn’t produce satisfactory AM signals. But as telegraphy was the chief means of communication, they remained in use for many years along with high-powered alternators and the Poulsen arc transmitter, which could also generate continuous waves.
Many thanks to SWLing Post reader, Ulis, who recently shared a link to this story in the DailyNK.
Here’s an excerpt:
In the case of loudspeaker broadcasts, which roiled the North, eventually leading to artillery fire, it can only be heard 25km into the North from the demilitarized zone, but in the case of radio broadcasts, many North Koreans can gain access, which is why it’s believed to a play a larger role in psychological warfare.
“After listening to the radio, I naturally found myself comparing things with the reality in North Korea,” Chae Ga Yeon (50), a North Korean defector who used to enjoy tuning into radio broadcasts, told Daily NK on Wednesday. “Having learned about things that are different from state propaganda, I took on a more critical way of thinking toward the state, and I started to realize Kim Il Sung and Kim Jong Il are not gods as the state claims. They started to look like average human beings,” she said.
“People who have tuned into broadcasts like these don’t keep the information to themselves. They share it with others,” Chae explained. “This makes other people listen in on the broadcasts as well, and they start being more critical against the state that is blocking out the information.”
Kim Seong Yeob (45) is another escapee who also tuned into these broadcasts. “North Korean broadcasts are not interesting since all they do is focus on idolization, so I enjoyed listening to South Korean broadcasts since they would share different news stories and air radio dramas as well,” Kim said. “Then I came to open my eyes to the false propaganda and developed this desire to learn more about society in North Korea and study it,” he recalled.[…]
Experts believe these broadcasts can expedite change in people’s awareness in North Korea. Given that state dominance over information is the control mechanism used over North Koreans, they believe information from outside can deal a severe blow to the North Korean system.
Daily NK and Unification Media Group will post a series of nine articles on the effects of broadcasts to North Korea. Check the DailyNK website for updates.
As we mentioned in a previous post, the BBC has announced plans to broadcast to North Korea in the near future via shortwave. Bloomberg Business reports, however, that these broadcasts may never happen due to the potential for political backlash.
To follow all of our North Korea posts, bookmark this tag.
SWLing Post reader, Frank, writes from Germany:
First let me say that I enjoy your blog a lot.
After a 2005-13 hiatus, I have rediscovered a childhood hobby and your reviews have helped me find my way to the post-Sony portable shortwave radio markets.
First, I obtained my “childhood dream” radio (Sony ICF 2001D), because at the time I made these recordings I was still in school and 1300 DM would have equaled over 1 year of pocket money, so a Supertech SR16HN had to do. I thought I got some fine results with this Sangean-Siemens re-branded receiver then, using a CB half-length antenna, a random wire, and much endurance.
The Supertech SR16HN (photo: Radiomuseum.com)
I kept regular logs throughout the years, wrote to 50 international and pirate stations for QSL and compiled this cassette.
A few years before I got that trusty SR16HN, however, I recorded a few number stations (such as G3, Four Note Rising Scale etc) with an ordinary radio cassette recorder, and in 1991 I put them onto this tape as well. The other recordings are done with the same radio placed right in front of the SR 16HN.
Feel free to make use of these recordings. Most of it are the well-known international state-owned shortwave stations of the past; plus European pirates; plus number stations; and at the end, a few (off-topic) local Am and FM stations interval signals.
As I said, this collection I made shortly after the Wende/reunification period, when all former-GDR state broadcasters changed their names, sometimes more than once.
Please continue your good work on the blogs! Weather permitting I am often outside cycling and always have the tiny Sony ICF 100 with me (which I call my then-student’s dream radio of the later 90ies).
Frank’s original hand-written notes. Click to enlarge.
Click here to download Side 1, or listen via the embedded player below:
Click to enlage.
Click here to download Side 2, or listen via the embedded player below:
Wow! Frank, what a treat to listen to all these station IDs!
I had forgotten how many interval signals have changed over time and how many, of course, have disappeared. This tape represents a flood of nostalgia for me.
I should add, too, that I’ve enjoyed hearing so many IDs in German. It’s funny, but we all get hooked on listening to language programming from our native or second languages. It makes me realize just how many broadcasters used to have German language services.
Again, many thanks, Frank, for taking the time to digitize these recordings and scan your original hand-written notes. This stuff is invaluable, in my book!
