Signal Identification

From HFUnderground

Crude mock-up of the start of a signal identification section of the wiki.

Mode	Frequency Range (kHz)	Bandwidth (kHz)	Shift (Hz)	Number of Tones	Key Features	Sources	Recording	Spectrum Image
USB	All Frequencies in the HF Range	Typically 2.4 to 3.0 kHz, can be wider or narrower	Not Applicable	Not Applicable	No carrier present in Spectrum, audio typically bunched to towards the left (low frequency)	World wide	USB recording link here
LSB	All Frequencies in the HF Range	Typically 2.4 to 3.0 kHz, can be wider or narrower	Not Applicable	Not Applicable	No carrier present in Spectrum, audio typically bunched to towards the right (low frequency)	World wide	USB recording link here
AM	All Frequencies in the HF Range	Typically 2.6 to 10.0 kHz, can be wider or narrower	Not Applicable	Not Applicable	Carrier present in center of signal, audio mirrored left and right of the carrier	World wide	AM recording link here