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Does anyone have documentation for this audio processor? I have a UT-3/460-SWC800 which has this board installed, and would like to calibrate it. I've never seen an AP that looks like this ...

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Additional information: images available at: https://www.kb6mip.org/43-911913.htm

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Paul

Hi Paul,

Thanks Jim.

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I have the TN130 tuning procedures tech note that covers "43-911918 through 43-911923" (first page) and "43-911916 and earlier versions" (second page). While the second page tuning instructions may work for the 43-911913 board, there is no component locator on page three showing the 43-911913 board layout. The drawings there are for boards ending in 916, 918, and 922/923.?

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BUT ...

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Your message prompted me to go digging through *all* the sections of my VHF high band printed manuals, and guess what? I found something buried in my copy of the wideband-to-narrowband documents. It's three pages that have nothing on them about what manuals they came from, just "REV SEPT 1991" in one corner and "2-30.7" in the other. But they do document an old audio processor board that looks exactly like my 43-911913 board does, at least in terms of adjustment component layout. The document is for audio processor number 911910-002. I'll post a PDF of it on my web page (link above), and upload it here when I have the time.

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Thanks for pointing me in the right direction!

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Paul