Wait. Using a 100W slug, if you get a reading of 100 watts, the real power would be between 95 and 105 watts, right? If you get a reading of 50 watts the real power would fall in a range of less than 45 to 55 watts?
Not if the 5% at full scale is the best accuracy. Or did I misunderstand what you said? 73, Mike NF4L On 12/8/2011 11:59 PM, Eugene Balinski wrote: > 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<[email protected]> 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 >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
