P03 numbers station

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P03 numbers station
P03.png
Frequencies 4 MHz,21 MHz
Frequency Range 4 MHz - 21 MHz
Mode USB
Modulation BPSK,QPSK
ACF
Emission Designator
Bandwidth 200 Hz
Location Worldwide, Poland
Short Description Enigma designation P03 is a family of digital PSK modes, used by the "Polish 11" numbers station operator, which is likely a Polish intelligence agency.
I/Q Raw Recording
Audio Sample

P03 is a family of digital PSKPhase-Shift Keying modes that are used by the "Polish 11" numbers station operator. This operator is likely a Polish intelligence agency.

P03 has at least 8 sub-modes, P03e to P03l. P03 modes use very narrow bandwidth so transmissions can be hard to notice and may be mistaken with QRM.


Samples[edit]

All different sub-modes can be collected here. The main sample is an unknown sub-mode.

P03k sub-mode
P03k.png

Frequencies[edit]

Polish 11 is known to use frequencies between 4 and 21 MHzMegaHertz (MHz) 10^6 Hz and P03 transmissions happen in this range.


Video Examples[edit]

Additional Links[edit]

Additional Images[edit]