Steve,
I would expect a 10% accuracy on the metering. It sounds like your K3
meets that on the current measurement at higher levels, but goes higher
at low current readings. I would not suspect anything wrong.
As for the voltage reading - yes, you can expect a voltage less than the
applied voltage, and it will be lower by about the drop of a schottky diode.
73,
Don W3FPR
inventor_sixty_one wrote:
> Are there any specs for the accuracy of these meters?
>
> Mine are not very accurate. For example, on RX, the ammeter reads
> about 200 mA low.
> Measured current is 1.24A but the rig says 1.02A.
>
> The voltmeter is also shy, by what looks like the voltage drop of a Si diode.
>
> When transmitting at 100W carrier, the ammeter reads about a half-amp low.
>
> Not really that big a deal -- except if it's indicating I have messed
> something up.
> It's for the same reason that I check my gas mileage every fill up.
> If it changes a lot, I know something is amiss.
>
> 73 mx Steve KZ1X/4
> Celebrating nine years on this reflector 12/1999-12/2008
>
>
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