I need some help trying to identify exactly what type of signals I am seeing - and what modulation scheme is being used for each.
This first image shows what I see @ 1.536 GHz. these are all fairly consistent 200ish-khz signals.
Second picture shows much more narrow spikes than above but more of the 200khz signals to the right of the spectrum.
Third picture: more similar to the first image.
anyone care to weigh in?
I'm curious as to... what signals I am seeing (and perhaps even from where they are coming from) and the modulation scheme that may be in use (USB?) and .... again, being really basic here - what decoder program will work.
For reference, the antenna is pointed south / south-west from central florida.
I am currently using Skytale-C with the SDR# plugin. The only channel I have reliably decoded so far is the NSC channel on INMARSAT F4 @ 1.537.7xx
TIA
doug
This first image shows what I see @ 1.536 GHz. these are all fairly consistent 200ish-khz signals.
Second picture shows much more narrow spikes than above but more of the 200khz signals to the right of the spectrum.
Third picture: more similar to the first image.
anyone care to weigh in?
I'm curious as to... what signals I am seeing (and perhaps even from where they are coming from) and the modulation scheme that may be in use (USB?) and .... again, being really basic here - what decoder program will work.
For reference, the antenna is pointed south / south-west from central florida.
I am currently using Skytale-C with the SDR# plugin. The only channel I have reliably decoded so far is the NSC channel on INMARSAT F4 @ 1.537.7xx
TIA
doug