Yaesu FT-891 Technical Supplement

FT-891 Technical Supplement
Alignment
ALIGNMENT-12
CM Coupler Balance Adjustment

Connect the 50-Ohm Dummy Load and
Wattmeter to the ANT jack.

Connect the Digital DC voltmeter (high-Z) to
TP5003 on the PA Unit.

Connect the Audio Generator to pin 8 of the
Microphone jack (pin 7: GND), then set the
output level to 0.5 mV @1 kHz.

Set the VFO-A frequency to 50.150 MHz in the
USB mode.

Press the PTT switch, then adjust the MIC
gain to set the RF P
ower output to 50 W on the
Wattmeter.

Press the PTT switch, adjust TC5001 for
minimum deflection on the DC voltmeter (less
than 0.3 V).

Release the PTT switch.
TP5003
TC5001

Yaesu FT-891 Specifications

General

Brand	Yaesu
Model	FT-891
Category	Transceiver
Language	English