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HP 8753C min. Output when using doubler?

Question asked by Mitch on Apr 15, 2018
Latest reply on Apr 18, 2018 by Mitch

When using the 8753C and 85047A on the 6 GHz range with Power Level set at 4 dB or more the setup works fine.  If I set the Power Level below 3 dB I get an error message “Caution: No IF Found”. I know the doubler requires a certain minimum power to work but I can't find anything in the manuals telling me the lower limit.  Is it normal to get this message at low power output levels?

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