Ken,
If folks would accept the fact that the typical wattmeter may be in
error by as much as 20%, such discussions would be "put to bed" more
quickly.
I can believe that a calibrated LP-100 will be good to 5% or less, but
the others need to have proof of accuracy before I will budge from my
skepticism. Note well that this statement regards the forward power
indication only - the indicated SWR has many other variables and can be
in error by more than the stated 20%. I will say that most all will
properly indicate a 1.0 SWR when the impedance is 50 ohms non-reactive,
but at points away from that value, inaccuracies loom large.
73,
Don W3FPR
Kenneth Waites wrote:
> Where there is additional loss in the coax line, the swr will be lower;
> This, in addition to the transformer effect of additional length of coax.
> It sound to me like there is some loss in the external SWR meter that causes the transceiver to see more loss that the external swr meter is seeing.
> I think what you are seeing should be expected.
>
> Ken K5WK
>
>
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