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FT-897 Alignment
Vertex Standard Co., Ltd.
5
Power Amplifier Adjustment
HF/50MHz Idling Current Adjustment
a.
Connect an ammeter at TP3021 and TP3022.
b.
Turn both VR3002 fully to counterclockwise.
c.
Press the PTT and adjust VR3002 for an indication of 300mA ±10mA on the ammeter.
V/UHF Idling Current Adjustment
a.
Connect an ammeter at TP3021 and TP3022.
b.
Turn both VR3001 fully to counterclockwise.
c.
Press the PTT and adjust VR3001 for an indication of 300mA ±10mA on the ammeter. e.
Connect the J1004 and switch on the S1001.
CM Coupler Balance Adjustment
a.
Terminate the antenna jack with a 50Q dummy load. Set the mode on CW, connect a DC
voltmeter to TP3002.
b.
Tune the transceiver in 28MHz band and key the transceiver.
c.
Adjust TC3002 for the minimum indication on the DC voltmeter.
d.
Tune the transceiver in 145.995MHz band and key the transceiver.
e.
Adjust VR3003 for the minimum indication on the DC voltmeter.
f.
Tune the transceiver in 439.995MHz band and key the transceiver.
g.
Adjust TC3001 for the maximum indication on the RF Power meter.
Software Menu Alignment
Antenna connector should be connected to a dummy load in case of transmission or a signal
generator in case of reception. General alignment conditions are as follows in case otherwise noted.
AF-gain knob: Center RF-gain knob:
Fully clockwise SQL: Fully
counterclockwise
ATT/IPO/CTCSS/DCS: Off Output
power: High
AGC: Auto
Break-in: On, CW Keyer: Off
VOX: Off
Keep pressing the Multi Function Key [A],[B],[C] simultaneously and turn on the transceiver, the
alignment menu will be activated.
In the alignment procedure, each alignment parameter is selected by rotating the main dial.
Alignment item is selected by rotating VFO/M-CH knob.
To store the alignment parameters, press the [MENU] key for longer than half second.
