On 9/13/14, 7:33 AM, paul swed wrote:
Charles I literally just sat down to do some math. What you say is the same thoughts I have. The information I have on NAA says that for 200bit msk its a total of a 100 hz shift +/-50 Hz. That makes no sense I would think it would be at least +/- 100 Hz. They had in the past run a 100 bit msk. I somewhat wonder about the documentation accuracy in the tracor manual and the net. Hey it has to be true on the internet.
As I recall, MSK is FSK with the shift being half the symbol rate. I assume they're doing gaussian minimum shift keying GMSK. The mod index is typically 0.5 with gmsk.
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