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After weather delays, my shiny new red Sunflash RD-666 receiver / music player is finally in my hands. I bought it at TEMU for $14.73, delivered. Woo hoo!

This is a semi-blind experiment, to try something new after bypassing the new Tecsun PL-520 and MLite-880 SDR. The price from Banggood is $72.99 including shipping, plus tax. They’re also available on Amazon for (gasp) $150 plus tax.

There’s been quite a stir with questions on social media about a new radio model from Tecsun, the PL-520. At first glance, it looks like a PL-330 with rounder corners, gray instead of black.

If at first you don’t succeed, order, order again.

After returning the QFX R-333BT that I paid around $30 for because it was defective, I looked around on TEMU to reorder what I hoped to be a fully working model and came across a very similar device, the only visible difference, the words X-BASS on the speakers and no “disco lights” in the front. With some mystery special discount, plus tax and shipping, this one came in at $14.73. So what I expect, for half the money, is the same radio less the disco lights, one that actually receives MW. The seller said they were “almost out.”

I reordered because I thought the speaker, at first listen, sounded exceptional. I still have to decide how to charge the thing.

Delivery expected delivery: January 23-30. [Update: delivery delay be because of weather. 1/31/26]

This thing is HUGE. The second thing is that it reminds me of my Evche EVCHE EC-2110BTS radio, although the latter is considerably smaller and less colorful. Both are MW/FM/SW radios that can be powered by D-cell batteries, both have rechargeable batteries, both come with an AC power cord, both play Bluetooth and MP3 with an AUX input, both have flashlights and both top the MW band around 1600 kHz.

The box and packaging make a polished retail impression and I could easily imagine this on the shelf of a Walmart store. The chrome knobs really shine. There is a shoulder strap, folded, and wrapped in a Velcro closed sheath that converts it to a carrying handle. Nice job on that.

Not new, but I finally got around to installing v4.21, October 27, 2025, on my ATS25 max-Decoder.

Release Notes

AIR beta 27/10/2025

Supported Models: ATS25 / ATS25+ / ATS25X1 / ATS25X2 / ATS25 max, ATS25 max-Decoder, ATS-Decoder Pocket, ATS120, ATS25AMP, ATS25 max-Decoder II, ATS120D / ATS120 Pro, ATS-Decoder Mega, ATS25-XF, ATS25Ultra, ATS200, ARESQ aq1, ATS25 Pro+, ATS25 max-Decoder II AIR, ATS-Decoder Mega AIR, ATS200D

• The HF-FAX decoder has been added.
• Bandwidth options for 500, 1000 and 2200 Hz Morse code decoder are installed.
• Added a rewind decoding screen for the Morse code decoder.
• Added output of decoded Morse code data to the COM port.
• Added the ability to move the frequency by clicking on the Waterfall indicator in digital signal decoding and Morse code modes.
• Fixed an error with the output of a message about the need to connect an external frequency converter.
• The ability to adjust the BFO in the SSTV decoder has been removed.
• Added support for new receiver models.
• Fixed incorrect display of volume buttons in decoding modes.
• Fixed frequency error when switching VFO.
• Fixed the display of buttons in station search mode.
• Fixed incorrect deletion of the city and stations.
• Fixed the error of displaying the SSTV decoder screen after using other decoders.
• Added support for the ILI9488 IPS display with inverse color display.

Installation

I downloaded the ZIP version from http://www.harduino.ru/index.php/ru/skachat. I let Google Chrome handle the translation.

The EXE wouldn’t download onto a Windows computer, so the ZIP version was necessary. During the installation process, you will have to identify a COM port to the installer.

The one saying CH340 is the one to select when asked for a COM port, in my case COM-9.

When the USB cable is ready, power off the ATS25 and power it back on while pressing the encoder wheel in. If it displays WELCOME, click the encoder wheel.