First Impressions: JOC J-101W

This is an inexpensive radio / music player. They’re selling on AliExpress today for under $23 with free shipping. It’s an MW/FM/SW radio and music player. In this short First Impressions post I’ll discuss packaging, look and feel, preliminary sound quality assessment, first look at the manual, and some questions that come to mind.

Caution: My First Impressions posts are tentative and subject to change in the final review.

What it is

It’s an AM/FM/SW radio, adding an emergency siren, Bluetooth speaker, music player (supported music formats not specified) from USB-A flash drive or MicroSD card, and sleep timer alarm. The radio has auto tune storage (ATS). There is a speaker and an earphone jack. While the radio sports digital signal processing, the user experience is purely analog. There are some LEDs to indicate band and mode. The tuning display is reminiscent of a slot machine, except that the digits don’t rotate independently.

In tiny printing around the faux speaker port on the back, visible in just the right lighting, is a feature list: “R&D: DISPU — FRULL BAND — RADIO — BT — MUSIC PLAY — SUPER BASS.” Maybe “FRULL” means “not all of MW.”

Shortwave coverage is not continuous, rather divided into 7 distinct bands: bands not actually detailed in the product manual, but discernable from numbers on the tuning wheel. We can see the bands listed and in the table following are the “standard” ranges from the listed bands:

BandFrequency Range
495.9 – 6.2
417.2 – 7.6
319.4 – 9.9
2511.6 – 12.2
2213.57 – 13.87
1915.1 – 15.8
16 17.48 – 17.9

The manual also has one other curious entry:, weather band:

Manual Specifications Page

MW doesn’t cover the full band for US users.

The manual says the overall SW range is 5.7-17.9MHz.

The size is 10.5*4.5*11.8 cm. The antenna length is 33 cm. It uses an 18650 flat top battery and charges in place with a USB-C jack. A screwdriver is supplied to open the battery compartment.

But there is no indication of how a weather band might be accessed. I read this to say that there is none and that the manual might refer to some other model.

It is IPX4 weather resistant and is sold as an “outdoor radio.”

In the box

The box wastes no space. In it are the radio, USB charging cable, manual, battery (installed) and a screwdriver. Mine, like the few I have seen photos online had a wrinkled box, likely due to the lack of a separate shipping box.

JOC K-101W

The next photo doesn’t show the bubble wrap, but the radio in the box is so protected. The accessories are the manual and charging cable. The Manual appears to be the same one from the AliExpress seller’s website. The one sheet manual covers English, Portuguese, German, Russian, Spanish, Italian, Thai and Polish. Here’s the package all together:

JOC J-101W — Box and accessories

Look and Feel

It’s not a premium unit. The resistance to turning the tuning knob varied according to position. But it seems sturdy enough. The controls are well placed and operation is not at all clumsy; it’s held in the left hand and operated with the right–thumb on the buttons and fingers on the tuning knob.

Right away I noticed that the tuning dial is not illuminated. Something recessed from the front panel should, in my opinion, be lighted. The box lists a feature called “ambient lighting,” but nothing in the manual talks about it.

There are attachments for a carry handle or strap but none is included.

Operation

The more serious mechanical issue is backlash. I haven’t seen this on a radio in years, but some of my old cheap radios had the problem. When tunning one might turn past a station by accident, so one turns back to listen to the station — only it’s not there. Reaching the station requires turning back further than the knob position was when the station was received. The operator ends up turning back and forth hoping to land on the station.

Perhaps a better approach, at least for FM where the backlash is particularly bad, is to run the ATS scan and then use the arrow keys to switch between stations.

The manual never says what the MW step is, whether it can be changed, nor how to change it. I’ll have to figure out some way to test that.

Can one tune a station visually? I decided to try to tune a nearby FM station, on 89.9 MHz. The first problem is that the FM band on the rotating display is in red with black printing. In normal room lighting reading the numbers is almost impossible. The tuning dial presents “88 · 90.” In the US, there are 10 FM channels in that small space — more in other regions.

Sound

The 5W speaker is loud, no question. Quickly tuning on the FM band, I found the bass less than expected. As I understand it, the music equalization profiles do not apply to radio.

Questions

How old is this thing? Typically the short MW band is an indicator of either a really old model or one that is only for the Eurasian market.

Conclusion

It did receive MW stations, and at least some SW was found with just the short telescopic antenna. I’ll give it a whirl when I have more time (this thing arrived at 9 PM tonight).

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Incoming Radio: JOC J-101W

It’s a weakness. AliExpress sent me an email — 50% off, free shipping.

JOC J-101W Khaki

It cost $27.28 — that’s just $3 per band. Looks big! Actual size is 105 x 45 x 118mm (4.1 x 1.8 x 4.6 in). So it’s at least not tiny. It also comes in dark and light green color (reminds me of a HanRongDa HRD-700 back in the day). The “Service Manual“; however, is tiny. Supposedly the “9 bands” are MW, FM and SW-1-7. Usually a “W” suffix on the model number would indicate a weather band variant, but that’s not the case here.

Features

The screaming deficiency for me is the lack of a digital readout. Also Shortwave is not full coverage, limited to 5.7-17.9MHz. MW tops off at 1620 kHz rather than 1710. The frequency response is advertised as 30 Hz – 15 kHz. Yeah, right. One reviewer said it had “good bass.”

Wow! That’s terrific bass!

It uses an 18650 battery (included). USB Type-C charging. IPX-31 weather resistant.

Given that it’s weather resistant, meaning outdoor use, the flashlight question arises, and apparently there is none. It does work as a Bluetooth speaker and can play music from a USB flash drive or MicroSD card. Surprisingly, it has ATS.

Update:

Here’s a video I found.


  1. IPX3 Provides protection against
    Light rain
    Water spray from any direction up to 60°
    Occasional splashing
    Being near a sink or light spray from a hose (not direct jet)
    Does not protect against
    Heavy rainstorms
    Direct water jets (IPX5/IPX6)
    Immersion (IPX7/IPX8)
    High‑pressure washing
    Submersion in puddles or dropping into water🤖 ↩︎
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FM Log

I rate FM radio performance by counting local stations I can hear down on my patio in the middle of the day. That’s simplistic, because daytime propagation varies and E-Skip happens. Not all stations are necessarily local and consistent.

Sporadic‑E (Es) is a propagation mode where radio waves in the 30–300 MHz range reflect off dense patches of ionization in the E‑layer of the ionosphere (≈90–120 km altitude). On the FM band (88–108 MHz), this produces long‑distance reception of stations 600–1500 miles away, often with strong, local‑quality signals.

Es clouds form when wind shear and atmospheric tides compress metallic ions (mostly Fe⁺ and Mg⁺) into dense layers. When the electron density spikes high enough, the layer becomes reflective at VHF frequencies.

Key triggers:

  • Summer solstice season (May–August)
  • Winter minor season (December–January)
  • Strong wind shear in the upper atmosphere
  • Thunderstorm complexes (sometimes correlate)
  • Jet stream boundaries🤖
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Evaluating the Zhiwhis ZWS-802 + W3

The package consists of a MW/FM/SW/WB radio with stereo speakers, plus a repeater — an external device that is a radio itself, able to relay received audio to the base radio. The repeater adds AIR band and VHF/UHF.

Let’s start with a video. It’s a transmission of Radio Romania at 01:33 UTC on 30-June-2026 on 9495 kHz.

Radio Romania on Zhiwhis-802

In the upper right of the radio display is an antenna symbol with the letters *EXT* underneath; when solid on rather than blinking, the icon informs us that the radio is receiving an external signal from the W3 repeater. The repeater was on the back porch about 5 meters away, and connected to the repeater was the 3 meter wire antenna supplied in the W3 accessories pack. In my opinion, this is the “normal” use case for this product.

The “9.495 MHZ” tells the frequency, almost. The bandwidth is fairly wide, so the station is easily heard on 9.490 and 9.500 (noting that this is a strong signal). The little number “5” is blank on frequencies that are multiples of 10 kHz indicating that 5 kHz is the smallest tuning step on SW. The display shows signal to noise ratio (SNR) is 16 and the relative signal strength (RSSI) is 72.1

The video shows what an iPhone microphone picks up.

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Incoming Radio: LiJiANi RD-239S + W2 Repeater

I’ve been waiting to order this since early May when an early version appeared on the AliExpress website with prominent warning that SSB tuning step was 5 kHz and that there was no printed English manual, to be remedied by a new version on May 27 with a 0.5 kHz SSB tuning step. I left a message yesterday for the seller CLOOBLUT asking if the new version were available yet, and this morning when I looked for a reply, instead of a reply, there was a product listing of the new version.

LiJiANi RD-239S + W2
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Walmart?

Dangerous outdoor temperatures have kept me indoors and away from necessary outdoor testing for my ZWS-802 review, so to pass the time I clicked on a CNBC video on YouTube about Walmart’s attempt to boost online sales and complete with Amazon.

According to the video 90% of Americans (myself included) live within 10 mines of a Walmart retail store, and for what it’s worth, I live within 10 mines in a major Walmart distribution hub (Amazon is building one even closer). But I don’t think I’ve ever bought a radio at a Walmart store or their website. The selection or the price just didn’t make sense when I was shopping.

Both Amazon and Walmart rely on third party sellers for their product diversity. Some sellers employ both platforms. I tried the term “shortwave radio” on Walmart to see what popped up. Foremost was an ad from Midland, featuring weather/emergency radios and walkie talkies. When I scrolled down, I did see some brands that might interest a shortwave listener. The table below lists some comparison prices between Walmart and Amazon:

ModelWalmartAmazon
ATS 25 max$99.00$99.80
Choyong LC90$249.00$249.00
Kaito KA500$49.88$49.99
Retekess TR112$89.99n/a1
Retekess TR113$179.99$179.99
Retekess V115P$25.29$23.32
Sangean ATS-909X$389.99n/a2
Sparkelec DP-666$88.29$139.99
Tecsun H-501$329.98$329.98
Tecsun PL-330$85.49$84.99
Tecsun PL-998BT$139.00n/a
XHDATA D-808$86.99$90.10
1 Other brand variants listed
2 Older model not listed

One problem I had with Walmart was that some items didn’t have a model number or I couldn’t tell what version was offered, for example on a Si4732 Mini. Walmart tended to have older models.

Anyhow, Walmart could be worth a check. But check shipping costs, delivery times and return policy first.

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First Impressions: Zhiwhis ZWS-802 + W3 Repeater

E-gad, this shipping box is heavy: 4 lbs. 6 oz. It may have something to do with the 5 x 18650 batteries, 3 for the radio and 2 for the repeater. And unlike almost every radio in my experience, it’s bigger than I anticipated.

I compared a couple of color screen models in a photo:

ZWS-802 and ATS5 max-Decoder

Both have a big tuning knob that also acts as a switch and of course the ATS25 max-decoder has a touch screen compared to buttons on the ZWS-802. In fact, all three knobs are also push buttons.

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