In article , John Phillips
wrote:


I haven't calculated the intermodulation from a 0.1 parts per billion
modulation of cable inductance but my engineering feel is that it's
about three-fifths of bugger all.

In signal/comms terms that would be around -1dBFA.

(The max level will be 0dBFSD, given a measurement dynamic range of XdB you
define 0dBFA to be = XdBFSD. :-) )

Slainte,

Jim

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