Yaesu FT-897 Technical Supplement page 17

RX Gain Adjustment
Select the CW mode. Tune the transceiver to the 1.8
MHz band. Select "HF1RXG HF1RXG" in the menu by rotating
HF1RXG HF1RXG
HF1RXG
the MEM/VFO CH knob, if necessary. Inject an RF
signal from the signal generator at 9 dBµ output.
Adjust the "HF1RXG HF1RXG" parameter by rotating the main
HF1RXG HF1RXG HF1RXG
dial to the point where the first dot of the S-meter (S1)
appears.
The other RX gain adjustments (see the chart below)
should be performed in the same way. The output lev-
els of the signal generator at each frequency are shown
below.
Menu Frequency Output Level of SG
1.8 MHz Band
01: HF1RXG 01: HF1RXG 01: HF1RXG 01: HF1RXG 01: HF1RXG
7 MHz Band
02: HF2RXG 02: HF2RXG
02: HF2RXG 02: HF2RXG 02: HF2RXG
21 MHz Band
03: HF#RXG 03: HF#RXG 03: HF#RXG 03: HF#RXG 03: HF#RXG
50 MHz Band
04: 50MRXG 04: 50MRXG
04: 50MRXG 04: 50MRXG 04: 50MRXG
144 MHz Band
05: VHFRXG 05: VHFRXG 05: VHFRXG 05: VHFRXG 05: VHFRXG
430 MHz Band
06: UFFRXG 06: UFFRXG
06: UFFRXG 06: UFFRXG 06: UFFRXG
SSB S-Meter Adjustment
Tune the transceiver to the 21 MHz band in the CW
mode. Inject an RF signal from the signal generator at
36 dBµ output.
Select menu item "07: SSB-S9 07: SSB-S9" and press the [A] key
07: SSB-S9 07: SSB-S9
07: SSB-S9
to set this parameter.
Tune the transceiver to the 21 MHz band in the CW
mode. Inject an RF signal from the signal generator at
86 dBµ output.
Select menu item "08: SSB-FS 08: SSB-FS" and press the [A] key
08: SSB-FS 08: SSB-FS
08: SSB-FS
to set this parameter.
FM S-Meter Adjustment
Tune the transceiver to the 144 MHz band in the FM
mode. Inject an RF signal from the signal generator at
0 dBµ output, with ±3.5 kHz deviation FM Modula-
tion of a 1 kHz tone.
Select menu item "09: FM-S1 09: FM-S1" and press the [A] key
09: FM-S1 09: FM-S1
09: FM-S1
to set this parameter.
Increase the output level of the signal generator up to
25 dBµ. Select menu item "10: FM-FS
key to set this parameter.
9 dBu
9 dBu
6 dBu
0 dBu
0 dBu
0 dBu
10: FM-FS" and press [A]
10: FM-FS 10: FM-FS 10: FM-FS
FM Center Meter Adjustment
Tune the transceiver to the 144 MHz band in the FM
mode. Inject an RF signal from the signal generator at
10 dBµ output, with ±3.5 kHz deviation FM Modula-
tion of a 1 kHz tone.
Set the frequency of the signal generator 3 kHz below
the receiving frequency of the transceiver. Select menu
item "11: DISC-L 11: DISC-L" and press the [A] key to set this
11: DISC-L 11: DISC-L 11: DISC-L
parameter.
Set the frequency of the signal generator 3 kHz above
the receiving frequency of the trans-ceiver. Select menu
item "12: DISC-H 12: DISC-H" and press the [A] key to set this
12: DISC-H 12: DISC-H
12: DISC-H
parameter.
FM Squelch Adjustment
Tune the transceiver to the 144 MHz band in the FM
mode. Confirm that the squelch knob is turned fully
counterclockwise.
Inject an RF signal from the signal generator at -15
dBµ output, with ±3.5 kHz deviation FM Modulation
of a 1 kHz tone. Select menu item "13: FM-TH1
press the [A] key to set this parameter. Select menu
item "14: FM-TH2 14: FM-TH2" and press the [A] key again.
14: FM-TH2 14: FM-TH2 14: FM-TH2
Inject an RF signal from the signal generator at 0 dBµ
output, with ±3.5 kHz deviation FM Modulation of a 1
kHz tone. Select menu item "15: FM-TI1
the [A] key to set this parameter. Select menu item "16:
FM-TI2" and press the [A] key again.
FM-TI2 FM-TI2 FM-TI2 FM-TI2
Power Supply Voltage Display Adjustment
Tune the transceiver to the 144 MHz band in the FM
mode. Confirm that the power supply voltage is 13.8
V (±0.1 V).
Select menu item "17: VCC 17: VCC" and adjust this parameter
17: VCC 17: VCC 17: VCC
such that "138 138" is displayed on the LCD.
138 138
138
Alignment
13: FM-TH1" and
13: FM-TH1 13: FM-TH1 13: FM-TH1
15: FM-TI1" and press
15: FM-TI1 15: FM-TI1
15: FM-TI1
16: 16:
16: 16:
17