HP 8559A MHz, MHz, MHz, MHz, 1 MHz

ADJUSTMENTS

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5-25. FIRST CONVERTER ADJUSTMENTS(SERIAL PREFIX 2236A)(Cont'd)

32.Set FREQ SPAN/DIV to 1 MHz. Note position of comb tooth.

33.Adjust A7R99 MO to place comb tooth midway between position noted in step 32 and center graticule line.

34.Set FREQ SPAN/DIV to 2 MHz.

35.Adjust TUNING to placecomb tooth on center graticule line.

36.Set FREQ SPAN/DIV to 1 MHz. Note displacement of comb tooth from center graticule line.

37.Repeat steps 30 through 36 until displacement of comb tooth is less than 0.2 major division when FREQ SPAN/DIV is switched from 2 MHz to 1 MHz.