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WZYN Japan

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WZYN DRM Japan
WZYN DRM Japan RX'ed

"They say that water tastes like water" -Zynden During first broadcast.

Summary[edit | edit source]

Operating as an extension of the main network, WZYN Japan is a sister station to WZYN (Zynden's Radio Z). It broadcasts on 4.48 MHz and utilizes both AM And Digital Radio Mondiale (DRM) to provide the audio and the Journaline text service.

History[edit | edit source]

WZYN Japan was officially announced on August 30, 2026, by its parent network, WZYN (Zynden's Radio Z). The announcement coincided with the main Boston-based station shutting down its original 7.38 MHz frequency to transition to 4.78 MHz. Created as a dedicated sister station specifically to serve the Japanese region, WZYN Japan has uniquely featured programming on Hatsune Miku since its inception.

Operating with a transmitter power of 100 kW, WZYN Japan broadcasts from Kawasaki, Kanagawa, Japan. The station utilizes both AM and DRM specifically employing Robustness Mode B to deliver high quality audio content alongside advanced data services like Journaline . WZYN Japan is scheduled to broadcast daily from 22:00 to 12:00 UTC on the 4.48 MHz frequency.

Unlike the primary WZYN station in the United States, the Japanese broadcast excludes Radiogram features. Zynden noted that implementing digital text and image transmission features for the region was unnecessary, stating:

"I feel like adding digital text and images doesn't feel right for the Japan region especially when it comes to people in there. It's too unnecessary to be implemented." -Zynden

AM (Amplitude Modulation) specifications[edit | edit source]

AM Module
Bandwidth Stereo? Antenna Power
15 khz No Broadband 50 Ft Antenna 100 Kw (Can be heard across South Korea)
Schedules
Language AM DRM Locaton
Japanese 22:00 to 12:00 (DRM tIme gap at 03:00 to 04:00) Friday to Monday 03:00 to 04:00 Kawasaki, kanagawa Japan

Digital Radio Mondiale Specifications:[edit | edit source]

DRM Specs
Robustness Codec TX SIte (Decoded Via Dream) SDC MSC Bandwidth Total MSC Capacity Power TX Type
B AAC Stereo Japan 16 QAM 64 QAM 10Khz 27.44 Kbps 100Kw (can be heard from South Korea) Hardware

DRM Protection Setup:

Protection Setup Protection Part A Protection Part B
EEP (Equal Error Protection) N/A 3 (Code Rate 0.76)

More DRM Information:

Type Service Name Service Type Language Programme Type ID Kbps Rate
Final WZYN Japan 1:Audio Japanese Varied F29231 23.60 Kbps
Final WZYN JP JL 2:Journaline N/A N/A F29232 3.84 Kbps

Trivia[edit | edit source]

Not even a day later WZYN Japan gets jammed by Chinese Firedrake Jammer by accident during the day.