JI1FGX/DU9 Amateur Radio Diary, Mindanao, Philippines, IOTA OC-130
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A diary of life in Mindanao.
26/04/26  DXCC200 achieved
26/04/23  Communication via ISS voice repeater
26/04/20  WSJT-X Auto Run Ver0.1.5
26/04/19  Got an Alinco DR-130
26/04/15  Clublog Charts
26/04/10  Regarding POC transceivers
26/04/08  Using KENWOOD AT-300 with YAESU radio
26/03/17  How to establish a radio club in the Philippines
26/03/10  KENWOOD AT-300 with YAESU radio
26/02/27  Philippine NTC Amateur Radio License Examination Question Bank
26/02/20  Package received from JK1SNS
26/02/18  Temporary License Renewal
26/02/14  Satellite Tracking Software SatTrack
26/02/05  Making a Repeater Controller Pert2
26/02/02  CQ on satellite IO-86
26/01/27  Shack & Repeater Controller
26/01/16  Making a Repeater Controller
26/01/16  Making aRotator Interface PCB
26/01/10  Satellite antenna installation
26/01/08 WSJT-X Remote Operation
26/01/07 JTDX Remote Operation
26/01/04  log_reciver_Ver2.6.6
26/01/04  Tailscale VPN software for JTDX_Remote

Online Multiple Choice Reviewers to
the Phil Amateur Radio Examination
by 4F3EW

A joint project by JI1FGX/DU9 and DV9JRD
Regarding POC transceivers (2026/04/10)
POC (Push-to-Talk over Cellular) is not commonly seen in Japan.
Apparently, it's used for commercial purposes in the Philippines.

I've heard that one of its features is low latency, similar to what you find in Zello.

I've been given one of these by DV9JRD Roy in Davao, in exchange for a Kuranishi BR-200 antenna analyzer.

This Motorola T99 (likely an OEM or counterfeit product made in China) is being sold on
the online shopping site Shopee for 1600 pesos (approximately 28USD).
 
But this is 'It's not a radio.'.
According to ChatGPT

Not a regular transceiver, but a POC (Push-to-talk over cellular.) is
In other words, communication is done via a mobile network (4G) > PTT is done via the internet.
→ In terms of mechanism
It's the same kind of thing as a smartphone + app (LINE calls or Zello).
■ Can it be used in Japan? (Important point)
① It's OK according to the Radio Law (this is surprising).
Since this only uses a mobile network connection, an amateur radio license is not required.
however…

② Compatibility with Japanese careers is an issue.
Supported bands: LTE Band 1 / 3 / 8 / 28, etc.
In Japan:
NTT Docomo → Band 1 / 3 / 19
au → Band 1 / 18 / 26
SoftBank → Band 1 / 3 / 8 👉
It works in some parts, but it's not fully compatible (the lack of Band 19 support is particularly disappointing).
In short: Urban areas → likely to be usable; Rural areas → weak or unstable signal.

③ In Japan, 'No service available'
This is the biggest issue: a Proof of Concept (PoC) cannot run on its own and requires a dedicated server (platform).
Example: BelFone ProChat's proprietary dispatch server. However,
in Japan: This type of business-use PoC service is not widely adopted.

④ The reason why you don't hear it in Japan (the core issue)
● Japan already has a strong infrastructure; smartphone penetration is nearly 100%;
and it can be replaced by LINE calls and business apps.
There's no need to use a dedicated machine.
● Different standards are prevalent for commercial use.
In Japan: Digital simple radio (registered stations), Business radio (MCA), IP radio (SoftBank, etc.) 👉
Domestic manufacturers (ICOM, KENWOOD) are strong.
● Technical compliance certification (this is critical) This is important.
To use it in Japan, you need 'Technical Conformity'.
This BelFone is very likely to lack the necessary technical compliance certification.
→ Business use in Japan is generally not permitted.

■ Summary (in short) Item Evaluation Radio Law OK (because it's for mobile use) Technical Conformity
❌ Almost none Communication △ (incomplete band) Practicality ❌ Low in Japan

Conclusion: Not practical in Japan
■From the perspective of a radio enthusiast/DXer:
This is not the 'Radio', it's just a smartphone transceiver.
■ Conversely, it's acceptable in the Philippines. In the Philippines:
Communication infrastructure varies by region; there is demand for alternatives to business radio systems.
That's why it's selling well.

■ In short 👉 It's no surprise you don't see it in Japan 👉 It's a model that doesn't fit the market or regulations.
 
 
April 8, 2026.   April 15, 2026.