[Elecraft] W2 Resolution

[Radio Amateur N5GE]

On Wed, 21 Oct 2009 13:41:09 -0500, Grant Youngman <nq5t at tx.rr.com>
wrote:

>You won't get higher accuracy by using the PC interface -- only higher  
>precision.  It's also kind of important to note that the spec is +/-  
>0.5dB.  Doesn't say if that's of indicated power or of scale maximum.   
>Nonetheless, you can get all the digits of precision through a PC  
>readout you want, you still are only going to be +/- 100 watts  
>accurate or so in the middle of the 2K range.  This is consistent with  
>the accuracy of other similar good quality RF Power meters.
>
>It wouldn't seem to matter all that terribly much that the LEDs only  
>give you 20 intervals, or that you could possibly get readings to the  
>watt on the 2KW (or even the 200W) range.  Once you throw in  
>measurement error, you still only know your output power within some  
>range of a few percent.
>
>Grant/NQ5T
>

Those of you who didn't understand my previous post please substitute
PRECISION for ACCURACY.

Thanks, Grant

Tom, N5GE

n5ge at n5ge.com
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