RDL
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 18.1 kHz |
| Frequency Range | 18.1 kHz - 18.1 kHz |
| Mode | CW |
| Modulation | FSK,CW-FSK |
| ACF | — |
| Emission Designator | — |
| Location | Russia |
| Short Description | RDL is a Russian VLF station located in Krasnodar. It is one of the few VLF stations that changes modes during routine transmissions. |
| I/Q Raw Recording | — |
| Audio Sample | |
RDL is one of the most interesting VLFVery Low Frequency (3-30 kHz) stations due to its variety of modes and intermittent, but frequent operation.
The station has two modes of operation:
- Fast FSKFrequency-Shift Keying, used most of the time
- Slow Morse FSKFrequency-Shift Keying, cleartext. Usually broadcasts the callsign, followed by some numbers, and finishing with the time of the transmission.
The transmissions will cease, or switch to a very low power when the message is sent. The duration of the transmission is very variable, from less than a minute to more than ten.
Decoding Software[edit]
When in CWContinuous Wave-FSKFrequency-Shift Keying mode:
