Ok, 0.3 watts of insertion loss, right?
Now ANSI specs for pressure gauges are rated Class A,B,C,D. Class D being the
least accurate, and commonly found on Air pressure tanks and compressors to put
up car tires or what ever. It is the common gauge.
Now for electronic meters, and it has been a long time for me, the rule of
thumb is that the accuracy of just the meter is PLUS or MINUS one
mark/graduation on the meter it's self. So the accuracy tolerance of the Bird
is less accurate than 0.3 watts.
I use to have some surplus amp meters that had had a mirror right under the
marks so you could get a dead on reading on the pointer.
Keep The Faith, Jim K9TF/WA9YSD
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