Very fast rising and falling tone, used by some emergency vehicles.

SFX suitable for vintage Sci Fi stuff. Based on frequency modulation.

fx

This is a testslip running the testtext the quick brown fox ... using ascii-coding

A Testpicture in SSTV which shows a greyscale using mode Martin1. SSTV stands for "Slow Scan Television". SSTV is a ...

Loopable sound for getting a big pile of coins Single coin here, http://www.freesound.org/people/DrMinky/sounds/166184/ Please leave a comment with any feedback, ...

Amtor FEC-Navtex is a type of data transmissionmode. This is Used for amateur radio communication. This test contains the international ...

I recorded the dial process of the modem in my powerbook. Then I cutted the whole thing and this is ...

A meteo RTTY station on 11MHz

Funny sample-and-hold random happy bleeps from a Yamaha TX81z FM tone generator. Always a classic.

Experimental QM synthesis resulting sound. Details for the synthesis method can be found at http://www.synthofmine.com/general-thoughts/qm-synthesis/

Various recordings of different data transmissions over shortwave or HF radio frequencies.

Running a testslip with "the quick brown fox..." using BPSK250

Various recordings of different data transmissions over shortwave or HF radio frequencies.

Used for amateur radio communication. This test contains the international testsentence: "the quick brown fox jumps over the lazy dog ...