priyom.org

Digital Modes

Enigma ID F03, P03
Name
Frequencies
Status Active
Voice N/A
Emission mode USB; FSK, 4FSK, BPSK, QPSK
Location Warsaw, Poland

Polish (icon)

Activity pages

The Polish 11 operator uses a custom modem to broadcast digital messages. Its various waveforms are designated F03 (FSK and MFSK) and P03 (PSK).

All digital schedules are twice weekly, follow year-round UTC (no daylight saving), and consist of 2 identical transmissions 5 minutes apart. Typically, each day of the week carries a different message, which is repeated week after week until it's replaced at beginning of the next month. Null messages do not appear to exist in these modes.

Most, if not all, digital schedules are associated with E11 and S11a transmissions taking place on the same days of the week, although the exact nature of this relationship is not established. The associated analog and digital broadcasts can be anywhere between a few minutes and a few hours apart.

The following 16 variants of F03 and P03 are currently on the air. Related variants are highlighted using the same color.

Variant Modulation Baud Shift Center ACF Sample
F03c FSK 400 Bd 960 Hz +1120 Hz 896

F03d FSK 200 Bd 400 Hz +600 Hz 896

F03e FSK 200 Bd 400 Hz +800 Hz 992

F03f FSK 400 Bd 800 Hz +1200 Hz 992

F03i FSK 100 Bd 800 Hz +1200 Hz -

F03j 4FSK 100 Bd 400 Hz +1200 Hz -

F03k FSK 400 Bd 800 Hz +1200 Hz 896

F03l FSK 100 Bd 200 Hz +700 Hz -

P03a BPSK 62.5 Bd - +1000 Hz 608

P03b QPSK 62.5 Bd - +1000 Hz 304

P03d QPSK 125 Bd - +1000 Hz 448

P03e QPSK 100 Bd - +1000 Hz 488

P03f QPSK 200 Bd - +1000 Hz 496

P03g BPSK 50 Bd - +1000 Hz -

P03h BPSK 100 Bd - +1000 Hz -

P03i BPSK 62.5 Bd - +1000 Hz -