Projects Hub

Hands-on builds and experiments from s21red.

Close-up of a homemade antenna with glowing green solder joints under dark lighting.
Close-up of a homemade antenna with glowing green solder joints under dark lighting.
Antenna Build

Crafting efficient antennas for clearer signals.

A SDR radio setup with amber-lit dials and a laptop displaying frequency spectrum.
A SDR radio setup with amber-lit dials and a laptop displaying frequency spectrum.
Learn More
A weather balloon ascending into a twilight sky with radio equipment tracking its path.
A weather balloon ascending into a twilight sky with radio equipment tracking its path.
A fox hunting team in action, radios in hand, navigating a green-lit forest.
A fox hunting team in action, radios in hand, navigating a green-lit forest.
WSPR Beacon

Sending low-power signals worldwide.

Get Involved

Meet S21RED

Passionate amateur radio operator from Bangladesh sharing projects, experiments, and real-time ham radio adventures.

A close-up photo of a radio operator adjusting an antenna with glowing green and amber lights in a dark, tech-themed room.
A close-up photo of a radio operator adjusting an antenna with glowing green and amber lights in a dark, tech-themed room.

150+

15

Trusted operator

Active

Join me

Our Projects

Hands-on experiments diving into ham radio’s science and fun.

A close-up of a homemade antenna setup glowing softly under green and amber radio signal lights.
A close-up of a homemade antenna setup glowing softly under green and amber radio signal lights.
Antenna Builds

Step-by-step guides to crafting efficient radio antennas.

Satellite Tracking

Follow live satellites crossing over Bangladesh skies.

Weather Balloons

Launching balloons to gather high-altitude weather data.

Contact

Reach out anytime with questions or greetings

Email

Phone

s21red@sviesosbanga.com

+8801712345678

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