From Signal Identification Wiki
NPM |
---|
Frequencies |
21.4 kHz |
---|
Frequency Range |
21.4 kHz - 21.4 kHz |
---|
Mode |
CW |
---|
Modulation |
FSK |
---|
ACF |
— |
---|
Emission Designator |
— |
---|
Bandwidth |
300 Hz |
---|
Location |
United States |
---|
Short Description |
Naval Radio Transmitting Facility (NRTF) sends encrypted commands to submerged US naval submarines in the Pacific. |
---|
I/Q Raw Recording |
— |
---|
Audio Sample |
|
---|