P03 numbers station

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P03 numbers station
P03k strong.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.

P03 is closely related to F03 which is used by the same operator. P03 and F03 are the successors of Polish Intelligence 100bd 625 Hz FSK, also known as F11.

P03 modes
Mode Modulation BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. Rate Center freq Period
P03e QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 100 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 488 bits
P03f QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 200 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 496 bits
P03g BPSKBinary Phase-Shift Keying (1 bit per symbol) 50 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 464 bits
P03h BPSKBinary Phase-Shift Keying (1 bit per symbol) 100 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 512 bits
P03i BPSKBinary Phase-Shift Keying (1 bit per symbol) 62.5 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 464 bits
P03j QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 100 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 504 bits
P03k BPSKBinary Phase-Shift Keying (1 bit per symbol) 100 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 480 bits
P03l QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 100 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. +1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 464 bits

Samples[edit]

All different sub-modes can be collected here. The main sample is P03k.

P03k sub-mode P03, unknown sub-mode
P03k.png
P03.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]