SAS2
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 42.5 kHz |
| Frequency Range | 42.5 kHz - 42.5 kHz |
| Mode | — |
| Modulation | MSK |
| ACF | — |
| Emission Designator | — |
| Location | Sweden |
| Short Description | Swedish navy transmitter for submarine communication. It shares the antenna with SAQ (Grimeton Radio) and is activated less often as the other Swedish transmitters used for VLF submarine communication. Usually, it works with reduced power. |
| I/Q Raw Recording | — |
| Audio Sample | |
SAS2 is activated less often as the other Swedish transmitters used for VLFVery Low Frequency (3-30 kHz) submarine communication. Usually, it works with reduced power.
Swedish MSKMinimum-Shift Keying (When Shift/Bd = 0.5. It is impossible to get this ratio to be lower than 0.5, hence it is called the 'Minimum' shift.) transmitters can easily be identified in the waterfall diagram by their fishbone-like modulation pattern. This seems to belong to the idle phases where no data are transmitted.
The fishbone pattern is even audible as a characteristic modulation.
