Category Archives: WiFi Radio

The Yoto Player: Chris’ Unconventional Wifi Radio Alternative

5 Replies

Many thanks to SWLing Post contributor, Chris, who writes:

Hello Thomas,

As a long time SWLing Post reader, I wanted to pass along something you and your readers might find interesting in the subject of internet radios.

While I have many MW and SW radios in my collection, I have reluctantly researched some PORTABLE wifi radios recently with the full knowledge that the satisfaction of catching a marginal broadcast signal no longer exists with this technology. But I have stumbled upon a PORTABLE internet radio that is not marketed as an internet radio, and it was right under my nose (or at least in my house) for a year before I discovered this.

As a father of two young children, I recently purchased a Yoto Mini player for them and a Yoto Player for myself (well, for them too):

https://us.yotoplay.com/yoto-player

This was after the realization that aside from the juvenile look to the Yoto, it fulfills all of my requirements of a portable internet radio player that the big players like Sangean, Ocean Digital, Lemega, and others cannot seem to attain in one product:

      • 24 hour battery life, rechargeable
      • very strong WIFI connection that covers whole house (can be BT speaker too, for those who use that)
      • much better sound and solid build
      • simple operation
      • no dependency on the status of online station database (** more below)
      • $120 or less ($70 for Mini)
      • other “tech” features people might use, but not necessary

Essentially, you place a credit card sized content card in the Yoto, it reads the song information by RFID, and downloads it from your online account so that it can play pre-recorded books or songs with or without internet connection.

HOWEVER, you can add radio station URL links to be ‘burned’ to a Yoto card as well and connect to those radio stations through the player. I have tested this and it works. Some use cases are that you could place multiple stations on one card and select which one from the Yoto (each with a custom graphic image to identify the station), or you could put one station on each Yoto card to feel more like you’re actively switching stations. Or you could put different genres of radio stations (music, talk, etc.) on a different card.

There are easy ways to find the actual URL of a streaming radio station.

If some people are looking for an internet radio that connects to a worldwide station database, the Yoto does not do that. But I don’t see myself needing that, because I would rather just add my favorite 5/10/20+ stations and jump between those. Connection status or retirement of online station databases seems to be a common source of complaints in the internet radio reviews I have read.

Please tell me your comments, and/or feel free to post this as a discussion topic on your blog.

Thanks,
Chris

Wow–I was not familiar with this device, but as you say, in a sense it’s a very robust interactive audio device with incredible battery life. I like the fact that so much of it can be used offline as well. I’m sure readers will have some comments and questions! Perhaps you can share more of your experience in the comments section of this post!

Guest Post: A review of the Chaoyuan LC90 Hybrid Shortwave/4G/Internet Radio

28 Replies

Many thanks to SWLing Post contributor, Michael Ye (BD4AAQ), for the following guest post:

The LC90, a Great Radio Spanning Two Worlds

by Michael Ye (BD4AAQ)

It is an awkward era for radio receivers. Although technology becomes more and more advanced and increasingly sophisticated radios are made, there are fewer and fewer stations to listen to. But hardcore radio hobbyists, mostly hams and shortwave listeners, would not give up the hobby. They continue to look for and enjoy stations among noises in the airwaves. Although Internet radios have been around for a long time, I never thought seriously about them. Perhaps I was stubborn, but in my mind, radios were noises and noises were radios and it’s the stations among the noises that I enjoyed. Receivers without noises were hardly real radios.

Until I got my first full band radio with Internet features. The LC90 was a pleasant surprise, completely changing the way I look at radio receivers. The LC90, or “full band smart Internet radio”, is my first shortwave radio AND Internet radio in one. There may be other radios with Internet features, but I have heard of few receivers that integrate the traditional radio (shortwave in particular) and the Internet. The LC90 was launched in China in early 2023, and quickly became popular among hobbyists thanks to the unique combination. News has been confirmed that the overseas version of the LC90 will be launched later this year. It provides more options for users at a time when shortwave broadcasters continue to shut down transmitters and bid final farewell.

Chaoyuan Company

The manufacturer of the LC90 is Chaoyuan, an electronics company based in Shenzhen, China, known for mobile phone design and Hi-Fi equipment. In recent years they started to design and make radios. And they are serious about the business, too.

The LC90 full band smart Internet radio

The Radio at a Glance

The radio is of regular size. A computer mouse is placed in the picture above, so you have an idea of not only the radio’s looks but also its size. The exact dimensions are 200x122x40mm. Its weight is 640 grams. The radio has a built in 4G SIM card, with 3G prepaid data. You have to add credit to the card in time by scanning a QR code on the screen before the built-in SIM card expires. You can also use your own SIM card by inserting it to a slot at the bottom of the radio. And of course, you could use Wi-Fi at home.

Although the radio is a combination of the traditional radio and the Internet, it is very ingeniously designed and does not put off the user with too many bells and whistles – you could press the tuning button to change the shortwave band and the fine tuning button to change the band width. The tuning button also serves as an “enter” key. These are clever designs that effectively save extra buttons. I have not seen a similar design in other radios.

For those who do not read Chinese, the upper five buttons are, roughly, “Configure”, “Timer”, “Setup”, “History” and “Favorites”. The four buttons on the left: “Confirm”, “Stations”, “News” and “Menu”. The four buttons on the right: “Back”, “Sequence”, “Rewind” and “Fast Forward”. The button with a globe says “Internet”.

The radio has excellent audio quality, rich bass, with a well-balanced frequency response. It is powered by two 18650 rechargeable lithium batteries. The radio has no back stand.

Traditional Radio

All three modes (or bands) are available, FM, MW and SW, as shown in the three buttons on the upper right (to get LW just press MW again). The FM band covers 64-108MHz, which includes Japan’s FM band. During the FMDX season you could have stations from Japan and other countries to explore. The SW band covers 2300-26100KHz, continuous, almost the entire shortwave band, more than enough for broadcast listening. The antenna jack works for all three modes (or bands).

Excellent Shortwave Performance

As a shortwave listener of many years, I am most interested in the radio’s performance in shortwave reception. Well, it is indeed very good in terms of sensitivity, selectivity and audio quality, with no compromise although the radio has an Internet section which requires additional space and resources.

When you use the radio indoor, reception could be poor and you can insert an external antenna to the antenna jack. Unfortunately, I cannot connect my AOR LA400 loop antenna to it as the antenna jack is too close to the tuning knob and so there is not sufficient space for the plug (see picture). Generally, a 3.5mm plug with a wire should work well if you extend the wire outside.

The external antenna jack

If there is a disappointment, its shortwave reception does not decode SSB signals. If the user is not a ham radio hobbyist, SSB reception may not be really needed anyway and the buttons, circuits and space can be saved accordingly.

Fair FM Reception

FM reception is good, but there is no obvious improvement of reception when an external plug is inserted in the antenna jack.

Mediocre MW Work

Reception on the lower bands, e.g., the medium wave band, is always a challenge in cities. It is not surprising that medium wave performance of the LC90 is mediocre at best. I don’t do much MW DXing but nowadays for each MW frequency there is almost always an FM frequency. Let’s face it – we should perhaps forget about medium wave reception in cities where there is excessive low band EMI.

However, if you go outdoor with the radio, medium wave reception can still be a lot of fun. And, contrary to FM reception, an external antenna significantly improves its performance!

Internet Radio

Admit it or not, the best days of traditional radio are gone, and while we continue to have fun on the old time radio, we should not hesitate to embrace newer technologies such as the Internet. By launching the LC90 and combining the two, Chaoyuan has made a significant move.

The Internet radio is an integrator of many online stations on the Internet, and more. It is completely different from the traditional radio which receives radio signals transmitted on air. The Internet radio, which relies on the Internet, provides much better audio quality, no noise, customizable and replay-able.

If you want to kill time and look for signals from noises, turn to shortwave and enjoy DXing. If you feel like listening to solid content or enjoying noise-free music, the Internet radio is there for you. This Internet radio integrates major web stations in China and on that basis the user can further select and configure their own favorites. Among apps that are built-in is Ximalaya FM, the leading audio platform in China. Due to requirements of policies and regulations in China, the user does not have much discretion to include foreign stations in the radio. However, Chaoyuan has indicated that they are working in an effort to secure authorizations from Spotify, Alexa and Pandora which they hope could be incorporated in the overseas version of the LC90. The future overseas version is expected to give the user more discretion to include online stations of their own choice.

A closer look at the display of the Internet Radio

Two buttons, Ai1 and Ai2, are voice assistants. Activate and speak to them and the radio directly plays the content (Ai1) or displays their findings for you to choose from (Ai2).

Finally, this is a radio with the most accurate time. There is no need to set the time for it, as it is based on the Internet.

Radio Waves: Listeners Share LRA36 Recordings, CW Clock, Tabletop Radio, and Dropping AM in Cars

5 Replies

Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Adrian Korol, Richard Cuff, and Dennis Dura for the following tips:

Radio Nacional Arcangel San Gabriel picked up around the world (Radio Nacional)

Radio Nacional Arcangel San Gabriel broadcasts on the short wave on Wednesdays from 21 to 23 UTC and on Saturdays from 21 UTC until 03:00 on Sunday on frequency 15476 Khz (USB).

Due to improvements in the audio chain and transmission line and good propagation, we are receiving messages from listeners who had not been able to listen to it for decades and also reception reports from countries such as India, Iceland, Japan, United States, Spain, Italy, United Kingdom, Mexico, Chile, Brazil, Uruguay and all the National territory.

During the summer we broadcast a program called “Uniendo Voces”, a production of the Joint Antarctic Command, the University of Quilmes and RAE, with the presentation of Juan Carlos Benavente.

We also share with you videos and posts in which listeners from around the world share their reception of LRA36. [Continue reading…]

Morse Code Clock For Training Hams (Hackaday)

It might seem antiquated, but Morse code still has a number of advantages compared to other modes of communication, especially over radio waves. It’s low bandwidth compared to voice or even text, and can be discerned against background noise even at extremely low signal strengths. Not every regulatory agency requires amateur operators to learn Morse any more, but for those that do it can be a challenge, so [Cristiano Monteiro] built this clock to help get some practice.

The project is based around his favorite microcontroller, the PIC16F1827, and uses a DS1307 to keep track of time. A single RGB LED at the top of the project enclosure flashes the codes for hours in blue and minutes in red at the beginning of every minute, and in between flashes green for each second. [Continue reading…]

The Changing Face of Tabletop Radios (Radio World)

While some still offer OTA reception, the specialty segment is dominated by online connectivity

There was a time, of course, when radios were fixtures in people’s homes. But according to Edison Research’s “Infinite Dial 2022” report, the percentage of U.S. homes with “zero” radios inside went from 4% in 2008 to 39% in 2022.

Among the radios that remain, clock and emergency radios have the best chances of justifying their presence to internet-centric consumers. But good ol’ fashioned tabletop radios? AM/FM receivers housed in eye-appealing laminated wood cases with big speakers and hefty knobs?

Mass-market companies such as Panasonic and Sony have abandoned such products. But specialty/quality brands such as C. Crane, Grace Digital, Sangean and Tivoli Audio have not.

These brands bring fresh approaches to the tabletop radio segment through innovation and the harnessing of streaming technology. Still, it’s an uphill battle in a world obsessed with all things internet.

There are several reasons conventional AM/FM tabletop radios have been disappearing from homes.

The first and most obvious is that even by the beginning of this century, radio had long ceased being a destination medium around which the family gathered to listen. In recent decades, the more common uses were morning wakeups, rush-hour commutes, sports on the go and weather emergencies, all well-served by portable radios, though there was still some degree of at-home listening.  [Continue reading…]

Who Benefits By Removing AM From Cars? (Radio World)

Three perspectives on this hot potato threat

Car manufacturers claim they cannot suppress noise getting into the AM signals in their electric vehicles. This article presents the viewpoint of three people who beg to disagree.

Tom King, the chairman of Kintronic Labs Inc., is an expert on AM transmission and noise interference. His company manufactures most of the phasing cabinets for directional arrays on AM stations around the world. Continue reading →

Sangean WFR-39 review update

23 Replies

Some of you know I’ve been working on a review of the Sangean WFR-39 WiFi/Internet radio. I’ve placed that review on hold as I’ve just learned that Sangean is working on updates to address a number of the issues I discovered while evaluating this unit over the past three months.

Besides an overly sluggish CPU, there are distracting audio artifacts present in the audio amplification chain when in Internet radio mode.

I’ll plan to publish a full review once they have updated and tested the new WFR-39 firmware. I think Sangean is an excellent radio manufacturer so I’m happy they’re addressing these issues in what would otherwise be a capable portable WiFi radio.

Stay tuned!

Guest Post: Pavel’s Raspberry Pi-based homemade multimedia internet radios

3 Replies

Many thanks to SWLing Post contributor, Pavel Kraus, who shares the following guest post:

Raspberry and internet radio


by Pavel Kraus

Raspberry and Volumio

I recently read an article about a Raspberry microcomputer here and I would like to introduce you to an idea that is easy to implement, not too expensive and does not require special computer knowledge due to the number of detailed instructions on the Internet. With Raspberry and the Volumio free software audiophile system, it is possible to design devices that allow you to play music files from connected or network storage or listen to Internet radio, etc. You can also play music from Spotify using the available plugins.

The system can be controlled by touch from the built-in display, from a mobile phone or tablet or by remote control. There are a huge number of internet radios, you can search them by genre or by country. For example, radio stations in the United States are categorized by  state, in each state by city, and we can select individual stations in that city.

Volumio is the name for the project, which is presented at https://volumio.com/en/.

There is also the option to download this software and install it on a microSD card. Detailed documentation is available at https://volumio.github.io/docs/, so I will not describe it in detail here, the installation itself is not complicated. I used the following components to make this device: Continue reading →

A look inside: The Worldwide Listening Guide’s Tenth Edition

13 Replies

As I’ve mentioned many times here on the SWLing Post, I’m something of a “content DXer.”

Clearly, I enjoy chasing obscure programming––news, documentaries, music, variety shows, anything the broadcasting world has to offer.   Even though my favorite medium for doing this has been shortwave radio, these days, I often turn to Wi-Fi or over-the-internet radio.  Wi-Fi radio offers the discerning listener the ability to track down fascinating regional content from every corner of the globe––content never actually intended for an international audience.

If you, too, like the chase, The Worldwide Listening Guide (WWLG) will be your go-to, and this recent edition––the tenth!––is the latest in a long line of handy volumes that help the listener catch what’s out there, noting that with each passing year there’s more content to catch.

Cornucopia of content

The variety of content from online broadcasters today is surely orders of magnitude more than any one individual has ever had via over-the-air (OTA) radio sources.

Though my WiFi radio offers an easy and reliable way to “tune” to online content––both real-time station streams and on-demand podcasts––the content discovery part is actually quite difficult. I liken it to browsing a large public library looking for a new and interesting book to read, but without the guidance of a librarian. The options are so plentiful that even with superb indexing and organization, one simply doesn’t know where to begin.

On the other hand––and I’m speaking from very recent experience here––if you find a good local independent bookstore, you might actually discover more meaningful titles because the bookstore selections are curated by both the proprietor and the local community.

With this analogy in mind, The Worldwide Listening Guide is essentially my local bookstore for online content and programming.

I recently received a review copy of the new 10th Edition of the Worldwide Listening Guide  by John Figliozzi and, as always, I enjoyed reading it from cover to cover.

The WWLG speaks to the types of programming I enjoy as an SWL because the author, John Figliozzi, is a devoted shortwave radio and international broadcasting enthusiast.

And while the bulk of the WWLG is a detailed and beautifully organized programming guide, it’s also so much more…

“The Many Platforms of radio”

As I’ve so often said, the WWLG is a unique guide; there’s nothing quite like it on the market because it truly takes a deep dive into the world of broadcasting and content delivery both from a technology and programming point of view.

Each media delivery platform, whether on AM, Shortwave, FM, Satellite Radio, Internet (WiFi Radio), and Podcasting, has a dedicated section in the book where Figliozzi explores each in detail. He also speaks to the state of each platform both from the broadcaster’s and the listener’s perspective.

Indeed, each chapter dedicated to these topics very much reminds me of the old Passport to Worldband Radio that I first picked up in the 1990s. The WWLG serves as a primer, but also speaks to the health and potential longevity of each platform.

I appreciate the fact that Figliozzi also addresses the nuts-and-bolts side of both over-the-air and online broadcasting.  For while I’d like to think that I’m reasonably knowledgeable about the world of radio, I find I always discover something new in each edition.

There’s a surprising amount of information packed into this slim, spiral-bound volume. The Worldwide Listening Guide is enough to keep even a seasoned content DXer happy for years…or at least, until the latest edition comes out!

In short? The WWLG is a bargain for all it offers, and I highly recommend it.

The 10th edition of The Worldwide Listening Guide can be purchased here:

Note that at time of posting copies of the WWLG can be pre-ordered at Universal Radio. Amazon.com will soon have links to purchase the 10th edition when they’re in inventory. I assume the W5YI group will also have the 10th edition available for purchase soon!