Tag Archives: Radiofax

Carlos Uncovers the Mystery Behind a Strange Radiofax from the Japan Meteorological Agency

Many thanks to SWLing Post contributor Carlos Latuff, who writes:

This is the image I received today, October 12th, at 7:10 UTC, in Rio de Janeiro, Brazil, from the Japan Meteorological Agency, via radiofax (13988 kHz). It was supposed to be a satellite image, showing Tropical Storm Nakri (which will become a typhoon in the next few hours). Instead, I received this truncated image. This isn’t a radio transmission/reception error, but rather a problem with the image generation from the Japanese Himawari satellite, something I hadn’t seen before.

This is the information provided by the Japanese TV NHK website.

Korea Meteorological Administration Radiofax with Nakri Path

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Many thanks to SWLing Post contributor Carlos Latuff, who writes:

The path of tropical storm “Nakri,” forecast to become a typhoon on Sunday, is shown on this weather chart from the Korea Meteorological Administration, broadcasted via radiofax and received this morning in Rio de Janeiro, Brazil, 0800 UTC, frequency 13570 kHz (UTC).

Typhoon Halong: Three Radiofaxes from Three Meteorological Offices

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Many thanks to SWLing Post contributor Carlos Latuff, who writes:

Typhoon Halong in three radiofax received this morning in Rio de Janeiro:

-Japan Meteorological Agency
(13988 kHz)

-Korea Meteorological Administration
(13570 kHz)

-Shanghai Meteorological Bureau
(12382 kHz)

Note: I added the little hand to make it easier to locate the typhoon on the charts.
Among the three, the one with the strongest signal was the Shanghai radio station, even being 18,235 km away from Rio de Janeiro and I’m in a densely urbanized area.

Update: Shanghai Meteorological Bureau for (today) October 9, 2025

Carlos’ Illustrated Radio Listening Reports and Recordings of CGTN and CNR With Additional Radiofax Imagery (October 3 & 4, 2025)

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Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares the following illustrated radio listening report of recent CGTN and CNR broadcasts.

Carlos notes:

Typhoon Matmo, the 21st major storm to hit China this year, China National Radio (CNR), 17565 kHz (?)

Click here to view on YouTube.

Typhoon Matmo disrupts holiday travel in China, CGTN Radio, 13580 kHz

Click here to view on YouTube.

Radiofax

Typhoon Matmo via Shanghai Meteorological Bureau, 12382 kHz (USB), received in Rio de Janeiro, Oct 4, 09h00 UTC

Shanghai Meteorological Bureau: Radiofax Shows Tropical Storm Matmo

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Many thanks to SWLing Post contributor Carlos Latuff, who shares the following:

Radiofax from Shanghai Meteorological Bureau (12382 kHz) received today at Urca Beach, Rio de Janeiro (09h00 UTC). Cyclone 01B over India and tropical storm Matmo (Paolo) in the Philippines, the fourth in a row!

Carlos’ Illustrated Radio Listening Report and Recording of China National Radio (September 26 & 28, 2025)

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Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares the following illustrated radio listening report of a recent CNR broadcast and radiofax transmissions from both Japan and South Korea meteorological agencies.

Carlos’ goal is to vividly illustrate the broadcaster’s message in his own unique artistic style and is not a reflection of his own beliefs or those of the SWLing Post. His objective is for his artwork to add historical context and put a visual with the news, reporting, and broadcast content:

Carlos notes:

Typhoon Bualoi leaves trail of destruction in the Philippines and Vietnam, CNR, 17590 kHz

“Sept 26: Typhoon Bualoi has killed 10 people and left 13 missing in the Philippines.”

“Sept 28: The typhoon caused a large number of fallen trees and damaged buildings. It also caused power and internet outages in parts of Ha Tinh Province*”

* Vietnam

Click here to view on YouTube.

Typhoon Bualoi shown in radiofaxes (detail) from the meteorological agencies of Japan and South Korea, received on September 28 at Urca beach, Rio de Janeiro, at frequencies of 13988 kHz and 13570 kHz respectively.

Carlos’ Illustrated Radio Listening Reports and Recordings of Voice of Vietnam (August 25-26, 2025)

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Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares the following illustrated radio listening report of recent Voice of Vietnam broadcasts.