Yaesu FT-897 Technical Supplement page 17

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