Russel,
are you using resonator,xtal or RC clok on yaw zillllog ?

I would assume that PSU voltage fluctuations will significantly affect
timing accuracy in RC mode, possibly to a lesser extent also with
resonator. This of caws wood spoil yaw S.D.G. rdng.

rgds,
G.D.

--
Steam engines may be out of fashion, but when you consider that an
internal combustion engine would require recovery of waste heat by
transfer just before top dead centre then fashion becomes rather
redundant, USE STRATIFIED HEAT EXCHANGERS ! and external combustion.

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