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Quote: Originally Posted by JKos |
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The data is not transmitted as discrete pulses. It is a modulated carrier. The carrier is only on when a packet of data is being sent. The carrier has constant power while on (typically). Each bit of the DSSS spreading code is called a chip. The signal is modulated by the chips XOR'd (typically) with the data.
So, the chain of events kinda looks like this... Data -> Encryption (if applicable) -> Error correction coding -> XOR with spreading code -> Modulate carrier.
- John |
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So it's pulse modulated FM. You can still see the synchronized signal on a scope, and tell what the amplitude is. The question remains . .what is the actual power. The only way to see is to isolate a block of the transmission and see what it's actual power is.