The input issue seems to be related to the switched input attenuation section of the analyzer. Because of the input issue, the analyzer is listed as “for parts or repair” only. Only Unit with power cord is included - No accessories or other parts.
excellent spectrum analyzer with am/fm demodulator can be used as a scanner by setting center frequency the span with then using peak function with continuous peak search, -110 db noise flloor use this one more than my IFR an920 as a shortwave radio when not using for technical work.