I just received the following note from my contact at Sangean:
“We received our first [PR-D17] shipment yesterday and are starting to ship to our customers.”
After making an initial post about the PR-D17–a radio designed specifically for those who are visually-impaired– I’ve received several inquiries so I thought I’d share this status!
Many thanks to SWLing Post contributor, George Herr, who shares the following item from the LA Times:
Long before cell towers started sprouting up everywhere, the federal government commissioned telecommunication companies to build five massive fields of shortwave radio antennae. The structures, which reached up to 450 feet, were located in out-of-the-way places in California, Ohio and North Carolina. Each was designed to bounce radio waves off the ionosphere, allowing federally produced programming to be transmitted all over the globe.
The U.S.’ international radio broadcaster Voice of America was born during World War II. It expanded during the Cold War. As technology advanced, its programs were carried via television and digital platforms. Today it is part of the U.S. Agency for Global Media, providing news and information in 50 languages to a weekly audience of 275 million.
Its early years are traced in a fascinating exhibition at the Center for Land Use Interpretation in Culver City. “Voice of America: The Long Reach of Shortwave” takes visitors back to the predigital world, before our political leaders began tweeting their innermost sentiments and policy decisions. Back then, international audiences were addressed more formally, via carefully scripted programming.
[…]The antennae are the stars of the show. They appear in photographs, in videos and on touch-screen monitors. Arranged in grids, arcs and asymmetrical arrays, they resemble high-tech fishing nets, impossibly spindly bridges, supersized spirit catchers and otherworldly telephone poles. Sculpturally impressive, they make Land Art look fussy, precious and small.
All but one of the five transmission stations have been abandoned. The most haunting component of the exhibition is a three-minute video documenting the destruction of the antennae. In sequence after sequence, little puffs of smoke appear before the towering antennae yield to the tug of gravity and topple to the earth in seemingly slow motion. Some crash into others, causing them to fall like skyscraper dominoes. It’s a sad ballet that marks the end of an era.
A pair of touch-screen slideshows is also bittersweet. It takes visitors on a virtual tour of Transmission Station B (the only one still functioning) and Transmission Station A (its twin). Both are near Greenville, N.C. To see the up-and-running station alongside its vandalized, disused doppelganger is to glimpse a living world next to a dying one.
Both are ours.
Many thanks to SWLing Post contributor, Marty, who shares the following article from Radio World:
STOCKHOLM — Radio is part of the lives of people around the world. In Asia this can amount to where hundreds of millions of listeners who tune in every day. Radio is a strong, inexpensive and effective medium to reach mass audiences.
Many of the challenges facing traditional radio elsewhere in the world are about to hit Asia. These include the expansion of music streaming services and ad investments being divided among other platforms such as social media. But the structure and maturity of the region’s radio industry differs a lot.
[…]Private radio is fairly new to many countries in Asia. India is one such example, where programs are mainly music-based and stations are still developing their brands and formats. Also, there is little standardization in tracking listening habits in many Asian countries and many groups tend to rely on their own figures. This leads to confusion for agencies that want to know what radio can deliver.
Public-service media is often closely monitored and controlled by government. But entertainment, music and sports offer broadcasters the potential to build strong radio brands they can further expand into social media, events and other activities. Something many are now exploring.
There are also new, more speech-based stations, such as business stations in Singapore and Kuala Lumpur. A particular strength for radio is its closeness to its audience, in many countries manifested by stations broadcasting in the various local languages. This is also true for community radio, which are vibrant and widespread in parts of Asia, especially India, Nepal and Bangladesh.
Radio plays an important role when natural disasters strike, frequently making the difference between life and death for millions of people. It’s often the only way of conveying information, be it earthquakes in Nepal, storms in the Philippines or tsunamis in Japan.
Radio´s easiness to use is an asset, but radio sets in homes are not as common as you might expect. FM radio saw a rise in listenership in India when nearly everyone had a mobile phone with built-in FM receivers. But today with new mobile phones coming into the market without FM, there is a new challenge. Will internet audio in phones lead the way to podcasting, as in the west? Or will Spotify and music streaming´s personalized offers replace traditional radio listening?[…]
Click here to continue reading the full story at Radio World.
Many thanks to a number of SWLing Post readers who shared this latest press release from Silicon Labs. This is certainly a major upgrade to the Silicon Labs line of tuners/DSP chips. Native Digital Radio Mondiale (DRM) support will, no doubt, meet the needs of car manufactures in countries (like India) that have adopted DRM rather than HD radio and DAB/DAB+. Of course, perhaps this might lead to an affordable DRM portable in the future:
Silicon Labs enhances Si479xx automotive tuner family with software-defined radio (SDR) technology.
(Source: Silicon Labs)
AUSTIN, Texas, July 29, 2019 /PRNewswire/ — Silicon Labs (NASDAQ: SLAB), a leading provider of automotive radio solutions, has introduced new hybrid software-defined radio (SDR) tuners, expanding its portfolio to meet the growing need of automotive radio manufacturers to support all global digital radio standards with a common platform. The new Si479x7 devices are Silicon Labs’ first automotive radio tuners supporting the Digital Radio Mondiale (DRM) standard. The Si479x7 tuners are an extension of Silicon Labs’ popular family of Global Eagle and Dual Eagle AM/FM receivers and digital radio tuners, providing the same outstanding field performance, pin and package compatibility between single and dual tuners, and bill of materials (BOM) cost advantages.
In addition to introducing new DRM-capable tuners, Silicon Labs is enhancing its Si4790x/1x/2x/5x/6x automotive tuners with unique “SDR-friendly” technology, effectively transforming these devices into hybrid SDR tuners. Silicon Labs’ hybrid SDR technology includes advanced DSP-based automotive features such as Maximal Ratio Combining (MRC), Digital Automatic Gain Control (AGC), Digital Radio Fast Detect and Dynamic Zero-IF (ZIF) I/Q. These features enable automotive radio manufacturers to support global digital radio standards with a common radio hardware and software design. This added flexibility helps OEM and Tier 1 customers reduce design, qualification, sourcing and inventory costs while avoiding the complexity and inefficiency of supporting multiple automotive radio platforms.
“Silicon Labs’ automotive tuners with hybrid SDR capabilities deliver the highest integration and reception performance and the lowest BOM cost of any automotive SDR tuners in mass production today,” said Juan Revilla, General Manager of Broadcast Products at Silicon Labs. “Our tuners with advanced digital radio features enable radio manufacturers to develop a single platform to demodulate and decode worldwide digital radio standards, greatly simplifying car radio designs and reducing system cost. A single digital radio platform can be achieved either with an SDR-based design approach or by using a tuner-plus-coprocessor design.”
Silicon Labs’ automotive tuner portfolio includes highly integrated single and dual device options with best-in-class AM/FM receiver performance. The portfolio supports all broadcast radio bands including AM, FM, Long Wave, Short Wave, Weather Band, HD Radio, DAB (Band III) and DRM. The tuners are built on Silicon Labs’ industry-leading RF CMOS technology, delivering outstanding automotive receiver performance. The tuners’ proven mixed-signal, low-IF RF CMOS design provides excellent sensitivity in weak signal environments and superb selectivity and intermodulation immunity in strong signal environments.
From the Isle of Music, August 4-10:
This week, we look at the career of the late Mongo Santamaria, who left us a vast and diverse body of work recorded in Cuba and the United States.
The broadcasts take place:
1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere (including parts of East Asia and Oceania) with 100Kw, Sunday 1500-1600 UTC on SpaceLine, 9400 KHz, from Sofia, Bulgaria (1800-1900 MSK)
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=9400am
2. For the Americas and parts of Europe, Tuesday 0000-0100 UTC (New UTC) on WBCQ, 7490 KHz from Monticello, ME, USA (Monday 8-9PM EST in the US).
If you don’t have a shortwave or are out of range, you can listen to a live stream from the WBCQ website here (choose 7490)
http://www.wbcq.com/?page_id=7
3 & 4. For Europe and sometimes beyond, Tuesday 1900-2000 UTC and Saturday 1200-1300 UTC on Channel 292, 6070 KHz from Rohrbach, Germany.
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=6070am
Uncle Bill’s Melting Pot, August 4 and 6, 2019:
Episode 124 brings you music from Japan that spans over 80 years.
The transmissions take place:
1.Sundays 2200-2230 UTC (6:00PM -6:30PM Eastern US) on WBCQ The Planet 7490 KHz from the US to the Americas and parts of Europe
If you don’t have a shortwave or are out of range, you can listen to a live stream from the WBCQ website here (choose 7490)
http://www.wbcq.com/?page_id=7
2. Tuesdays 2000-2030 UTC on Channel 292, 6070 KHz from Rohrbach, Germany for Europe.
If you don’t have a shortwave radio or are out of range, you can listen live to an uplink from a listening radio in the Netherlands during the broadcast at
http://websdr.ewi.utwente.nl:8901/?tune=6070am
Teachers gather with VOA Learning English instructor at the end of training. (Source: Inside VOA)
Many thanks to SWLing Post contributors, Eric McFadden and Bruce who share the following item from NPR:
The Voice of America has begun a daily radio show in Rohingya, the language spoken by Muslim refugees who have been forced to flee Myanmar. The program is called “Lifeline.”
Click here to read/listen at NPR.
Also, Inside VOA published the following press release:
VOA Launches Rohingya Language Program
Today the Voice of America’s Bangla language service started a five-day-a-week radio show in Rohingya, the language spoken by Muslim refugees that have fled Myanmar. More than 800,000 people have taken refuge at the Kutupalong camp, one of the world’s largest refugee camps at the Myanmar-Bangladesh border.
Titled Lifeline, the 30-minute radio show, is available through short and medium wave signals. The program focuses on the lives and needs of the refugees, providing them with valuable information on security, family reunification, food rations, available shelter, education and health including vaccinations and water purification. In addition, a daily segment of the program offers the refugees the opportunity to share their stories, extend greetings to their families and learn about the hazards of joining extremists groups. One overarching objective of the broadcast is to counter Muslim extremists’ narratives and recruitment efforts in the camps and inform the Rohingya about the U.S. and the international community’s involvement in the crisis.
“After visiting Cox’s Bazaar and the Kutupalong refugee camp last year, it became obvious to me that we needed to address the informational needs of these people caught in the fastest growing refugee crisis in the world today,” said VOA Director Amanda Bennett. “Providing them with a reliable and authoritative source of news, as well as practical information that will improve their lives, is what the Voice of America does well in various hotspots around the world.”
Prior to launching the Rohingya language program, a VOA Learning English team travelled to the Rohingya refugee camps in Cox’s Bazar, Bangladesh, in March of this year at the invitation of the United Nations High Commissioner for Refugees. The VOA instructors offered six days of intensive training on teaching techniques and methods for 100 selected English teachers. The teachers, in turn, will use the acquired knowledge to train another 5,000 of their colleagues in the camps.
Many thanks to SWLing Post contributor, Imre Olajos, who writes:
Hi, HRD 737 lovers! I have a good news!
I (became brave enough to) modify my HRD-737.
I tried reverse-engineering- but I gave up. No numbers on IC-s. I found specifications for the analog switches (one for each band ) and found information about the transistors around those analog switch IC-s. Nice, 1 GHz fT transistors, all surface mount, so I gave up that line.
I found an NPN SM transistor in a damaged TV remote. It is only a 300 MHz transistor but
I had no better than that, so I started to build a little antenna amplifier circuit, wide band and simple.I lost a few SM capacitors during the soldering but I have plenty of those. So the 1/4 square inch circuit board was finished last week. I tested it with an external 3 volt battery and I found it good working. Today ( 07-27-2019 ) I opened up the HRD-737 and wired it into the radio.
The results are much better than I expected. The HDR-737 became a good shortwave radio!When I touch the built in antenna by my finger, radio is sensing the touch and station comes in. This effect was not there before. Radio became more sensitive on CB band than my Realistic DX392.
I have a YouTube channel [in the following video/slideshow] and I will show you the little ugly but great working circuit in the radio:
Click here to view on YouTube.
Later on next week I will try to record some video of the shortwave reception and post up it on the same YouTube channel.
I am a shortwave lover since 50+ years and I will be very happy to share the good news with others. Now I can listen my Greek music on this little radio, on 9420 kHz. Yes, the radio became [more sensitive than I had hoped].
You can see my other shortwave radios on my YouTube channel too, Have fun and never give up the hope!
Many thanks, Imre, for sharing and documenting this modification. One of the lessons here, too, is that if you have an inexpensive radio like the HanRongDa HRD-737 and you feel tempted to try a modification, there’s little to lose. It’s not like modifying a $1000 transceiver–just dig into the little radio and give it a go. If you harm the radio, you’ve only invested $37 or so in the project. That’s a much better solution than letting it sit on a shelf collecting dust because it’s not sensitive enough! Well played, Imre!