Category Archives: Guest Posts

Michael compares the Choyong LC90 Export and Chinese Versions

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


Twins, Yet Each One Unique – A Comparison of the Worldwide Version of LC90 with its Chinese Counterpart

by Michael Ye (BD4AAQ)

The export version of the LC90 is now available in the market [affiliate link]. Previously, we examined the Chinese version, which has been in the China market since early 2023. Instead of a review of the export version, this article will focus on the similarities and differences between the two LC90 versions – the version that has just started to be distributed outside China and the version that is already being sold in China. A link to my previous article can be found by clicking here.

One thing to note is the name of the manufacturer. In my previous review, I used Chaoyuan, the “pinyin” phonetic of the Chinese characters of the name of the company. As it turned out, the westernised spelling that the company uses is Choyong, or Choyong Electronics.

The LC90, a hybrid radio that combines the Internet radio with the traditional radio, is a bold move and seems to be well-received by shortwave listeners and beyond. Let’s explore what these two versions of the same model have to offer.

Appearance

The two versions of the radio look the same in appearance. However, upon closer inspection, you will notice the language on the buttons differs. The export version has all the buttons labeled in English, while the buttons of the Chinese version have a mixture of Chinese and English.

Traditional Radio

I do not find differences between the FM, MW and SW features of the two versions. Both versions have the specifications as follows: FM: 64-108 MHz, MW: 522-1710 kHz and SW: 2.3-26.10 MHz. Shortwave performance remains excellent. However, for the export version, you could toggle the MW tuning step between 9 kHz and 10 kHz, and the FM tuning step as well, through the setup (gearbox) button, but it does not seem possible to change any tuning step on the Chinese version – this seems to be a matter of software upgrade and so is not really an issue.

On both versions, press MW again to enter LW (153-279 kHz).

Internet Radio

In terms of the stations that can be heard, the Internet radio exhibits significant differences from that of the Chinese version. The Chinese version is designed to exclusively feature Chinese language stations (and a few English language stations) in China. If we were to liken the Chinese Internet radio to a closed system such as iOS, it would be stable, reliable but restrictive. In contrast, the export version could be compared to Android, offering more open, inclusive and customisable user experience.

On the export version, the MENU button provides access to the main menu, which begins with the six continents (excluding Antarctica) and allows users to navigate to the desired country and then select a specific station. Additionally, shortcut keys are available for direct access to MUSIC, PODCAST, NEWS, TAG and LANG (languages).

TAG and LANG for Ai1 and Ai2 Buttons

On the Chinese version, two buttons, Ai1 and Ai2, serve as voice assistants. Activate and speak to them and the radio directly plays the content (Ai1) or displays search results for users to choose from (Ai2). They come in handy when you look for a specific item, for instance the title of a song or a talk show. On the export version, however, the voice assistants have been removed and replaced with shortcuts TAG and LANG.

Add Your Own Stations

The Chinese version has about 1000 Chinese Internet stations built-in. On the worldwide version of the radio, there is a vast number of Internet stations available, literally tens of thousands of them, in different languages, and from different corners of the world. The number is updated from time to time. And that is not all. A really cool feature is the ability to add stations of your choice and it is easy to do with the help of a mobile phone. Unfortunately, this feature for adding your own stations is not available in the Chinese version.

Nano SIM card

The Chinese version comes with a built-in nano SIM card that is prepaid and provides Internet data. To continue using it, simply add credit to the card. In contrast, the export version does not include a prepaid, data-enabled SIM card for the user. Still, the user can use a WI-FI connection or purchase a 4G nano SIM card to insert into the device’s slot.

Some Features Not Discussed Previously

Both versions have the following features:

  • Keyboard backlight;
  • IPS LCD with backlight;
  • Type-C charging cable supplied;
  • TF card supported (to store and play your own music); and
  • Bluetooth for the radio to serve as a Bluetooth speaker.

The integration of high-tech gadgets and advanced devices into our daily routines has become indispensable in this age of the Internet. It is essential to adapt to the ever-evolving nature of the times.

Bottom Line

The Choyong LC90 is an exceptional radio that combines traditional radio features with modern Internet capabilities. It is available in both domestic and worldwide versions. The revolutionary design of the LC90 allows for excellent overall performance in both over-the-air radio reception and online streaming/podcasting.

There is no difference in traditional radio reception and performance between the domestic and worldwide versions of the LC90. However, the Internet features are drastically different, as the worldwide version serves audiences around the world, while the Chinese version is dedicated to the audience in China.

Overall, the Choyong LC90 offers a unique combination of traditional radio and modern Internet capabilities, making it a versatile and high-performing device for radio enthusiasts and music lovers.

Wish List

Is SSB decoding necessary? Well, it depends. The radio primarily caters to broadcast listeners, but both hardcore amateur radio hobbyists and general listeners may find it appealing. While adding SSB decoding can enhance its functionality, it will increase costs and may require additional space, considering it already combines two radios in one device.

There are two switches, the red button (upper right) and the volume/sleep knob (lower right side). Is it really necessary to have both?

On the export version, the “network error” message may occasionally pop up, and the radio would become quiet until human intervention steps in. Is it feasible for the radio to automatically resume play after the network error is cleared?

For some users, the antenna jack is a bit too close to the tuning knob. In most situations, this proximity does not impact the radio’s operation. However, if you need to connect an antenna using a connector, you may encounter difficulty or even find it impossible to plug it in.

Click here to check out the Choyong LC90 (export version) on Amazon.com.

Note that this Amazon link supports the SWLing Post at no cost to you. Thank you!

Getting lost on those shortwaves and finding KTAB

Good day to all SWLing Post Community, FastRadioBurst 23 from the Imaginary Stations crew here letting you know that this week we present WDWD – Off the Map Radio. It’ll be going out to Europe via the services of Shortwave Gold on Sunday 21st January 2024 at 1000/1400 hrs UTC on 6160 kHz and then at 2100 UTC on 3975 kHz. Think of large maps flapping in the wind whilst trekking out in the wilds and places far far away.

Then on early Monday 22nd January 2024 we have KTAB running with the theme “Yesterday’s music today” at 0300 UTC on 9395 kHz via WRMI. Step into the shortwave musical time machine and be transported back to a time when valves needed time to “warm up” and tune into some real vintage old-time classics on the old wireless set.

For more information on the shows please email [email protected] and check out our old shows here.

More numbers for the new year!

Hi all SWLing Post Community FastRadioBurst 23 from Imaginary Stations here letting you know that this week we’ve another Numbers Station special going out to Europe via Shortwave Gold on Sunday 14th January 2024 at 1000/1400 hrs UTC on 6160 kHz and then on 3975 kHz at 2100 UTC. We’re talking numbers here!

Then on early Monday 15th January 2024 we have the first episode of The Numbers Stations at 0300 UTC on 9395 kHz via WRMI. One time pads at the ready again please.

For more information on the shows please email [email protected] and check out our old shows here.

New Year’s numbers stations are ACE

Hi all SWLing Post Community FastRadioBurst 23 here letting you know that this week we’ve an Imaginary Stations show called The Numbers Station going out to Europe via Shortwave Gold on Sunday 7th January 2024 at 1000/1400 hrs UTC on 6160 kHz and then on 3975 kHz at 2100 UTC. One-time pads at the ready and please no talk of that famous poacher of Lincoln, walls have ears you know.

Then on early Monday 8th December 2024 we have the first episode of Radio Ace featuring those Adventures of Flash Frisbone. As we’ve said before if you love radio, you’ll love Radio Ace! Tune in at 0300 UTC on 9395 kHz via WRMI.

For more information on the shows please email [email protected] and check out our old shows here.

Mysteries of a shortwave nature

Firstly FastRadioBurst 23 and the Imaginary Stations Crew send our best wishes to all of the SWLing Post Community for 2024!

This week we have WMMR – Mystery Mix Radio beamed to Europe via Shortwave Gold on Sunday 31st December 2023 at 1000/1400 hrs UTC on 6160 kHz and at 2100 UTC on 3975 kHz. Then at 0300 UTC Monday 1st January on 9395 kHz we have WMMR – The WRMI edition. “What will we hear?’ you may ask. Who knows, it’s a mystery! The only way to find out is to listen in.

For more information on the shows please email [email protected] and check out our old shows here.

Happy Holiday Festive Shortwave

Hi all SWLing Post Community, FastRadioBurst 23 and all The Imaginary Stations crew, wish you a great festive season and send our best wishes to all for 2024! This week we’ve an Imaginary Stations Winter Special going out to Europe via Shortwave Gold on Sunday 24th December 2023 at 1000/1400 hrs UTC on 6160 kHz and then on 3975 kHz at 2100 UTC. Pour yourself an egg nog if that’s your tipple of choice, tune in and enjoy the festive tunes.

Then on early Monday 25th December we have a show from deep within the Radio Thrift Shop archives, a Winter Holiday Special. Tune in at 0300 UTC on 9395 kHz via WRMI for the more eclectic side of yuletide/winter solstice programming featuring some wonderful tunes including a super one from Sharon Jones & The Dap-Kings with “World of Love” and a mini-documentary called “In Search of the Shaggs” the rock band formed in Fremont, New Hampshire in 1965. More on the Radio Thift Store show below:

Enjoy the festive season and have a wonderful 2024! For more information on the shows please email [email protected] and check out our old shows here.

Weather Station and Display Unit

WF-100SE Weather Station Review

WF-100SE WEATHER STATION

By Robert Gulley K4PKM

Weather stations have always intrigued me, particularly ones that sent information to the Internet. They are often more revealing than the local weather forecasts, and certainly can be used to augment NOAA weather reports. When living near a big city there were enough stations around I didn’t feel I could justify the expense, but living out in the country now there are only a few stations in the county, so I decided I would get one eventually.

About that time Radioddity came out with the WF-100SE and it seemed to tick most of the boxes I was looking for, and, as a amateur radio operator, had the Internet connectivity I sought. Since I suspected I would not be the only radio aficionado who might be interested in it, I approached Radioddity to do a review of the station and they promptly sent me a unit to review at no cost. I have reviewed other products for them, and they understand the ground rules – I tell it like it is, good or bad.

Here is a feature description as found on their website:

  • Easy-to-read Display: The WF-100SE features a large and clear 13-in-1 color display that presents weather data in a user-friendly format. Check temperature, humidity, rainfall, UV index, feels-like temperature, dew point, sunshine intensity, weather forecast, wind direction and speed, barometric pressure, and moon phase at a single glance.
  • Effortless Setup & Maintenance: Set up your weather station quickly with intuitive controls and straightforward installation instructions, and benefit from smooth operation with minimal maintenance requirements.
  • 7-in-1 Accurate Outdoor Sensor: The WF-100SE is equipped with a highly accurate outdoor sensor with upgraded rain collector, thermo-hygrometer radiation shield, and a solar panel that precisely measures weather conditions in your area. The system offers an impressive communication range of up to 330ft.
  • Sync with WeatherCloud & Wunderground: Stay updated with these platforms’ latest weather updates and forecasts via Wi-Fi. Access real-time data and make informed decisions wherever you are.
  • 24-48h Weather Forecast: Rely on the WF-100SE’s accurate sensors to provide reliable 24-48 hour weather forecasts. Whether it’s sunny, cloudy, rainy, or snowy, get prepared for any weather condition that lies ahead. Plan your activities in advance.

__________________________________________________________________________________________________

Since photos often do more justice to something than just mere words, I have taken images of my display screen, as well as screen captures of my unit as it appears on the Internet. As you can see from the display unit, the image is bright, easily readable, and contains a lot of information in itself. In addition to the wind, rain, indoor/outdoor temperature, I also like that the unit displays the UV and solar radiation levels, and even the moon phase, as I like to take the telescope out now and again when the moon is not too full and obscuring things.

Display Unity

Clear, easily readable display with large print for these old eyes!

Where the unit really shines as far as information goes, is what can be displayed over the Internet. As can be seen in the images below, there is a lot more information available online, including Day/Week/Month totals and averages. These can be viewed as graphs or as a table.

Weather Underground Display of Information

Basic Information similar to the Display Unit

Weather History on Internet

Weather history can be viewed by Day/Week/Month, a really nice feature to look for trends.

Graph of weather history

Visual graph of weather history requested

Table view of weather history

This is a partial Table View of the weather History

Setup and Internet Connection

Setup was remarkably easy, and connection to the Internet was simple. Setting up the station on the Weather Underground and Weathercloud was just a matter of entering some basic information. Between the two sites I prefer the display of the Weather Underground, but that’s just me. Both worked fine.

I have ben testing the unit for several months now and it has performed flawlessly. I have compared my readings with nearby stations and they essentially agree, with slight variations as you might expect.

For those curious about the station working with APRS on the aprs.fi site, there is a process for setting up the station so that it can appear on the Google maps site for APRS, but I have not done that yet.

Conclusions

I am very pleased with the performance of this weather station, and find it’s features comparable to other well-known brands. The current price is $179, again, pretty much in line with (or less than)  other established stations, and if you sign up for their email list you will get various coupon offers throughout the year which should save you some money.

Anyone familiar with my typical reviews knows I normally try to list pros and cons, but honestly, I can think of no cons I have encountered with this unit. If you have specific features you are looking for that are not mentioned or displayed here, I would encourage you to contact Radioddity with your questions, as I have found their customer service to be quite helpful.

Update One Day Later:

I had a bit of a storm pass through this morning with some heavy wind gusts which knocked down my Weather Station. It was on a PVC pipe clamped into a tripod, no stakes, so blowing over was my fault. (Fixing that today!)

Good news is that falling from a height of 8 feet or so, no damage to the unit, everything working fine. Whew!!

Purchasing the WF-100SE ($15 Discount)

If you purchase the WF-100SE weather station via our affiliate link, you will receive a $15 discount and Radioddity will send a small commission to the SWLing Post. Click here to make your purchase (simple search for WF-100SE).

Robert Gulley, K4PKM, is the author of this post and a regular contributor to the SWLing Post.