Yaesu FT-891, Technical Supplement

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FT-891 Technical Supplement
Alignment
ALIGNMENT-7
RF AGC Adjustment

Set the VFO-A frequency to 14.200 MHz in the
CW-USB mode.

Set the following controls as indicated:
[IPO] : ON
[ATT] : OFF
[AGC] : AUTO
[RF GAIN] : Fully clockwise

Connect the RF Signal Generator to the ANT
jack, then set the output level to +76 dBμ at the
14.200 MHz.

Connect the Digital DC voltmeter (high-Z) to
TP1016 on the MAIN Unit.

Adjust VR1001 on the MAIN Unit so that the
Digital DC voltmeter reading is “1.2 V ±0.2 V”.

Press and hold in the [F] key to save the new
setting and exit the alignment mode.
VR1001 TP1016