> I don't think a normalized voltage makes any sense. It should be real > voltage in volts. Then the particular instruments should check for > acceptable input voltage. I must be missing some point, what's wrong > with this approach? Nothing is wrong with this approach, but the normalized, dimensionless approach is a more general one. Please let me explain why: In navradio.cxx only the basic functionality of a radio is modeled, like setting frequencies, receiving something, spitting out audio etc. It does not model any particular radio and it does know anything about the powersupply of the radio. And it doesn't care at all if it is 12VDC, 24VDC, 110VAC, 220VAC or gallons of beer (who knows what the future brings?). But it should know, that if the power-supply drops below 70% (as an example) it stops working and if it raises above 150% (another example) it blows its internal fuse (hopefully). That said, the interval of [0..1] does not make to much sense, thanks John for pointing that out. Legal values for normalized power are any values greater or equal than zero with 1.0 being "nominal" level (100%).
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