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FT-897 Alignment | Radioaficion Ham Radio

FT-897 Alignment


Yaesu FT-897 Alignment

Local Oscillator Adjustment Reference Frequency Adjustment

a.   Connect a frequency counter to TP1032.

b.   Adjust the trimmer capacitor (TC5001) for 67.875000MHz ±5Hz on the frequency counter.

c.   Connect a RF millivoltmeter or an oscilloscope to the J5002 2pin (TP1032) and confirm that the output level is at least 70mVrms or 200mVp-p.


PLL Adjustment VCO VCV Adjustment

a. Connect a DC voltmeter to J2002 6pin (TP1028) and referring to the table below, tune the transceiver to each frequency listed. Then confirm that the correct voltage is present, or adjust the listed components for the required voltage.


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