Uniden CB001RJ: the handheld CB taking Japan by storm

The Uniden CB001RJ, Uniden's first handheld CB designed and type-approved specifically for Japan. (Photo Uniden, via Passion Radio)

🇯🇵 A “simple” handheld CB that became an event

Officially unveiled on 21 August 2026 and shown for the first time at Ham Fair 2026 in Tokyo on 29 August, the CB001RJ caused a rather unusual stir in the Japanese radio community. The article announcing its release was even among the most-read stories on the specialist site hamlife.jp before it had been shown to the public.

Uniden presents it as its first CB transceiver for the Japanese market to meet the new standards on unwanted emissions (the famous “spurious emissions”). And the enthusiasm was immediate: according to Passion Radio, the first batch of 111 units sold out in two minutes when pre-orders opened on 1 September 2026.

📊 The CB001RJ in figures

🎥 The CB001RJ on video (Ham Fair 2026)

Here is a “first look” filmed at Ham Fair 2026 in Tokyo, where the CB001RJ was on show on the Uniden stand. The video is in Japanese, but it gives a good view of the radio, its size and its famous telescopic antenna.

📻 In Japan, CB is limited to 8 channels

The difference from what we know in Europe is striking. Japanese Citizens Band uses only eight frequencies, and they are not even evenly spaced (a consequence of the 27 MHz band historically being shared with other services):

The rules require a maximum power of 0.5 W, AM (A3E) and simplex operation. Channel 8 (27.144 MHz) is widely used by the community for calling and monitoring, even though the texts of the MIC (the Japanese regulator) do not officially designate it as a “calling channel”. It is a channel worth watching when the band opens: Japanese enthusiasts happily head up mountains to try for DX.

📏 500 mW… and no improving the antenna

This is probably the most surprising difference for a European CB operator. The issue is not just the power limit of 500 mW: Japanese rules also lay down very precisely how the radio must be built. For a Citizens Band station, they require in particular:

This explains the CB001RJ's odd telescopic antenna: it measures exactly 1.965 m and cannot be removed (it is held by a Phillips screw). So there is no way of doing what a Swiss or other European CB operator would consider normal: connecting the handheld to a quarter-wave antenna on the car or a fixed vertical. For Japanese CB, the antenna is part of the type approval.

🇨🇭 Japan, Switzerland, Europe: worlds apart

A comparison helps show the gap. In Switzerland, as in the rest of Europe, CB is far more permissive than the Japanese regime.

✅ The famous “Giteki”: why an American CB is not enough

Another Japanese peculiarity: equipment must meet national technical requirements. The Giteki, recognisable by its regulatory marking, is the certification of technical conformity for radio equipment. Citizens Band sets are explicitly covered by it.

That is why buying a European or American CB does not allow you to use it legally in Japan. Transmitting with a non-compliant foreign set does not become legal simply because you turn the power down. This is exactly where the CB001RJ becomes interesting for Japanese users: it is a new, modern and legally usable set within this very particular framework.

And Uniden is insistent: it has not simply restricted an American set. The manufacturer says it has redesigned the electrical circuits, the software and the antenna to adapt the CB001RJ to Japanese requirements and obtain the corresponding certification.

💰 €650 for a 500 mW CB?

This is the second topic that has people talking. The price of 121,000 yen (about €650) seems out of proportion if you only look at the spec sheet: 8 channels, AM, 500 mW. On Japanese social media, some have compared it with Uniden's American CBs, which are much cheaper. But the comparison is misleading.

The CB001RJ belongs to a market where modern CBs that comply with the new standards have become niche products made in very small quantities. Recent Japanese models have been offered at between 112,000 and almost 196,000 yen. Uniden has to design a specific variant for a tiny market, take it through the conformity procedures, build a special antenna, and spread those costs over a limited initial production run.

🔧 Have the regulations changed? Not really

No, there was no major reform in 2025 or 2026 liberalising Japanese CB (more channels, more power, FM or external antennas). The principles that make this CB so unusual are long-standing.

The most important regulatory change for manufacturers concerns spurious emissions. Japan tightened its standards on unwanted emissions from 2005 onwards. A transition was supposed to make some older equipment unusable after 30 November 2022, but in August 2021 the government postponed this deadline indefinitely (because of the pandemic). The migration objective nevertheless remains in place.

This is what Uniden is referring to with the wording “新スプリアス対応” (compliant with the new spurious emission requirements). So the CB001RJ is not the result of more permissive regulations: quite the opposite. Uniden chose to build a new product capable of operating within the existing Japanese regulatory framework.

🎯 Why so much enthusiasm for such a limited set?

This is the hardest part to understand from Europe. The appeal of the CB001RJ does not come from a technological revolution: it comes precisely from its constraints.

With 500 mW and a built-in antenna, making a long-distance contact means choosing your location, understanding propagation, taking advantage of a sporadic E opening and working with what you have. In the end, you find some of the spirit of amateur radio QRP: the quality of the contact matters more than the power available.

Add to that the weight of the brand: Uniden is a long-established Japanese radio company, with a strong CB presence in North America and Europe, and it was returning to the Ham Fair after a long absence. Historic brand + unusual regulations + an almost artisanal market + a first batch of 111 units + a price of 121,000 yen: that was all it took to make it one of the most talked-about radio products of Ham Fair 2026.

🧭 A radio that mostly tells the story of a market

Seen from Switzerland or elsewhere in Europe, the spec sheet of the Uniden CB001RJ may raise a smile: eight AM channels, 500 mW, nine AA batteries and a telescopic antenna almost two metres long for €650. But judging it solely on its specifications misses the point.

The CB001RJ is interesting because it tells the story of the uniqueness of the Japanese radio market: frozen regulations, niche expertise, a passionate and loyal community, and a manufacturer willing to design a tailor-made product for a restrictive legal framework. In the end, it is a fine lesson: all over the world, the passion for radio finds its way, whatever the constraints.

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