> Hello All, > > Does anyone have any suggestions for calibrating a > Bird 43 and the respective slugs? I picked up a used > one and would like to check it out. > > Thanks, > Julius > n2wn > Lab cal is done by puting power through it measured with a known standard. Adjustment is done with pot acessable after prying off metal label. Check at highest and lowest and in the middle somewere. Bird rates them at +/- 5%, but I have yet to see one better than +/- 10%. They are great for rugged outdoor use, and peaking signal, but no one I know relies on them for precise measurements of power. Roy AB7CE NIST RF Lab Tech
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