WZYN

Main site of WZYN

"This is WZYN coming out from Boston, running up to 500 KW to 1MW! Operating at 4.78 Mhz" -WZYN

Summary

WZYN or Zynden's Radio Z (formerly known as Zynden's Random Music's) Is a AM, FM and DRM station that Broadcasts on 7.38 (no longer active), 4.78, 4.48 (Japan) and 99.2 MHZ. WZYN Features Radiogram (Ex. MFSK 64 and 32) and DRM with Journaline and Slideshow Services.

History

Zynden's Random Music's started as a Pirate random music station (hence the name) on July 2, 2026. Its original frequency was 7.68 MHz AM, but it later moved to other frequencies, such as 7.45, 7.39, 7.12, and 7.10 MHz. Finally, it settled at 7.38 MHz. At the time, its only focus was to blast music for people to enjoy.

Later, on July 20, Zynden's Random Music changed its name to Zynden's Radio 7.38 to reflect that the station now broadcasted on 7.38 MHz exclusively. At this point, the station no longer just blasted music; it also began sending images via MFSK, DRM (EasyPal), SSTV, and KG-STV. On July 22, the station became a official licenced station then renamed itself one final time (potentially) to Zynden's Radio Z or WZYN, which later became its most recognizable name.

On August 5, WZYN participated in Shortwave Radiogram. On August 22, WZYN began DRM transmissions as an experimental station using Robustness mode D, which would later become permanent and use Robustness mode A instead. Then, on August 30, WZYN shut down its 7.38 MHz frequency to move to 4.78 Mhz. Following that day, WZYN announced the launch of a sister station, WZYN Japan Featuring Hatsune Miku.

On September 1st, WZYN announced the upcoming new Shortwave station, which would be part of the Latin region.

Shortwave Radiogram

Hosted by Dr. Kim Andrew Elliott, Shortwave Radiogram (formerly known as VOA Radiogram) broadcasts on a regular schedule every Sunday at 14:30 UTC and Thursday at 23:30 UTC. The program transmits digital text and images over analog shortwave signals using the following structured format:

• MFSK32: Program Preview
• MFSK32: Article 1 (May or may not include an embedded photograph)
• MFSK64: Article 2 (Mostly includes an embedded photograph)
• MFSK64: "This Week's Images" gallery
• MFSK32: Closing Announcements

Shortwave Radiogram also has 2 other participating Stations:

WZYN

WRMI Miami Internatonal

WINB Red Lion

Like The Mighty KBC and Pop Shop Radio, WZYN also has its own radiogram (WZYN/Zynden's Radiogram) that only transmits occasionally during special events. Examples include tributes, historical features, celebrity birthdays, and anniversaries.

---

Frequencies / Schedule

Stations	Power (KW)	Frequencies	Modes	Schedule	Location	Target
WZYN Japan	100KW	4.48 Mhz	AM, DRM	22:00 to 12:00 UTC	Yamato, kanagawa Japan	Japan Reagon
WZYN (Zynden's Radio Z)	500KW (1MW for DRM international)	7.38 (now 4.78 Mhz)	AM, DRM	11:00 to 01:00 UTC	Boston, massachusetts USA	USA (Internatonal on DRM)
WZYN FM	30KW	99.2 Mhz	WFM	Irregular (For now)	TBA	TBA (possibly Local.)

Schedules on DRM:

DRM and AM schedules

DRM	AM
Sat to Sun 21:00 to 00:00	11:00 to 21:00 to 00:00

During the DRM phase:

DRM Specs

	Services	Codec	Robustness	SDC	MSC	Bandwidth	Power	ID
Experimental	1: Audio	AAC Stereo	D	16 QAM	16 QAM	10Khz	500Kw	5A1001
FInal	1: Audio	xHE-AAC Stereo	A	16 QAM	64 QAM	10Khz	1MW (For international)	5A130A
Final	2: Journaline Text	N/A	A	16 QAM	64 QAM	10Khz	1MW (For international)	5A130B
FInal	3: MOT Slideshow	N/A	A	16 QAM	64 QAM	10Khz	1MW (For international)	5A130C

Trivia

Did you know that WZYN USA has 4 Radio towers in different directions?

WZYN was once Jammed by Iranian Bubble Jammer.Jammed on 7.38 Mhz

Before WZYN changed frequencies, it's final music was called "Final Countdown".Listen to it here