"Geoffrey S. Mendelson" wrote:

Well no. The data is the same, but a new receiver needs to be used.
The old one just did on/off for an AM pulse, the new one uses BPSK,
which is two tone modulation. So not only does it have to decode
the carrier being there at all, it has to decode two different tones.


The carrier was amplitude modulated by reducing the carrier level,
not CW.

The same carrier can be phase modulated and provide both data
streams.


--
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