http://elecraft.85.s1.nabble.com/New-K3-built-can-I-reset-the-5w-calibration-tp7076112p7078308.html
Using a 100W slug, if you get a reading of 100 watts, the real power would be between
If you get a reading of 50 watts the real power would fall in a range of less than 45
Not if the 5% at full scale is the best accuracy. Or did I misunderstand what you said?
> The accuracy of Bird elements is typically +/- 5% of the
> full scale value. For a 100 W Slug, that is +/- 5 Watts.
> So theoretically speaking, with 5W in, and 0 registered
> on the meter, the meter is still within its rated accuracy.
>
>
> Additionally on the model 43 meter, there is meter scale
> end compression. To get the most accurate reading, one
> would want to have the 5W reading at the middle of the
> meter range, which means that one would want a 10W slug.
> Unfortunately I do not believe that Bird makes a 10W HF
> slug any more. Perhaps they need an Elecraft W2 ??
>
> 73
> K1NR
>
>
> On Thu, 8 Dec 2011 16:47:27 -0600
> Nate Bargmann<
[hidden email]> wrote:
>> > From my experience, trying to measure 5W with a 100W
>> element leads to
>> very inaccurate readings. The Bird is most accurate when
>> the reading is
>> as near to full scale as possible. That means a 5W HF
>> element (is that
>> even available?) would be ideal provided no more than 5W
>> is put through
>> the meter. A 10W element would be less accurate but
>> provide a safety
>> margin for the meter. Even better would be to have both
>> elements and
>> use the 10W one to get in the ballpark and the 5W one for
>> a final check.
>>
>> 73, de Nate N0NB>>
>>
>> --
>>
>> "The optimist proclaims that we live in the best of all
>> possible worlds. The pessimist fears this is true."
>>
>> Ham radio, Linux, bikes, and more:
http://www.n0nb.us>>