Spectrum Painting
 | |
|---|---|
| Frequencies | 2 MHz,10 MHz |
| Frequency Range | 2 MHz - 10 MHz |
| Mode | USB, LSB |
| Modulation | OFDM |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 4 kHz |
| Location | Worldwide |
| Short Description |
A form of SSTV that directly modulates an image to IQ by scanning across it so it shows up when viewed using a waterfall. Used by Hams for experimentation methods. |
| I/Q Raw Recording | — |
| Audio Sample | — |
Spectrum Painting, also known as RFRadio Frequency paint, is a form of SSTV that uses an input image directly modulated to IQQuadrature signals form the basis of complex RF signal modulation and demodulation, both in hardware and in software, as well as in complex signal analysis. over the RFRadio Frequency spectrum to produce a raw result, instead of a modulated scanline sequence in the form of an actual analog signal (Robot, Martin, Scottie, PD) or digital bitstream (FSKFrequency-Shift Keying, PSKPhase-Shift Keying, etc).
Other Uses[edit]
This signal is also used to jam the infamous Russian "Buzzer" numbers station, causing laughs throughout the spectrum in HFHigh Frequency (3-30 MHz). While this isn't a wise method, it is still funny to see some of the stuff that shows up.
Software[edit]
There is no decoding software.
- EasyPal (which has two options; to broadcast a short ID so the file can be viewed on the internet, or send the entire file contents over the air)
- PowerSDR KE9NS
- fldigi
Also there are some projects on GitHub
Video Examples[edit]
Other Images[edit]
From the main SSTV page where a callsign was painted on 3.732 Mhz.
Captured from a VOD of the buzzer livestream on youtube.
Voice of America Radiogram
DigiDX
Italian Broadcasting Corporation
Taken from a Dec 31, 2018 Happy New Years message in Russian Cyrillic
"WELL DONE / F4GKA QSL PSE 73"
