RDL
RDL is a Russian military strategic broadcast. It can be heard on VLF and numerous HF frequencies.
The broadcast carries FSK-modulated Morse code and 50 Bd T-600 data, using the shift of 250 Hz on HF or 75 Hz on VLF. Morse messages include:
- "RDL RDL RDL" followed by two 5-digit groups repeated three times, followed by "K".
- "RDL RDL RDL" followed by 5-digit single groups. The first group is often 11111 or 22222, while the last group is the day of the month (first 2 digits) and the group count (last 3 digits). The message ends with "K".
- "Monolith" messages, usually addressed to WEGI or RGT77.
The following is a non-exhaustive list of RDL frequencies, most of which are active simultaneously.
- 18.1 kHz
- 3244 kHz
- 3792 kHz
- 3861 kHz
- 4445 kHz
- 4818 kHz
- 5268 kHz
- 5438 kHz
- 6342 kHz
- 7760 kHz
- 7816 kHz
- 10535 kHz
- 11468 kHz
- 12832 kHz
- 14411 kHz
- 14664 kHz
- 16112 kHz
- 17452 kHz
- 17460 kHz
- 19210 kHz
- 20268 kHz
- 22864 kHz