Quote:
Originally Posted by colly0410
Would an FM subcarrier have had a better S/N ratio though?
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FM only gives you an S/N advantage if the bandwidth it occupies is significantly wider than the bandwidth an AM scheme would take up. So no real room for a win. You could get it if you widened the whole channel, but the primary FM modulation would do that for you directly anyway. I'm not sure that FM on FM would yield any advantage. It could get messy with sidebands going down into the sum signal baseband.
David