A 5% error in measuring voltage means a 10% error when calculating power.
73
Gary K4FMX
G3rzp@aol.com wrote:
> Another problem with calorimetry is the time it takes, which with a sweep
> tube amplifier would be prohibitive - even pulsed!
>
> I haven't seen a 'scope guaranteed better than 5%, even the new super dooper
> all singing digital things that can give aliases everywhere.
>
> And most of the time, does it matter?
>
> 73
>
> Peter G3RZP
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>
>
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