Yaesu FT-897 Technical Supplement page 21

FM Modulation Adjustment
Tune the transceiver to the 144 MHz band in the FM
mode. Connect the FM linear detector to the antenna
connector via an appropriate attenuator. Select menu
item "61: DEV-W 61: DEV-W." Inject a 15 mV audio signal at 1
61: DEV-W 61: DEV-W 61: DEV-W
kHz from the audio generator.
Key the transceiver and adjust this parameter for a
maximum deviation of ±4.5 kHz (±0.2 kHz) on the
FM linear detector.
Change the menu item to "62: DEV-N
ceiver and adjust this parameter for maximum devia-
tion of ±2.25 kHz (±0.1 kHz) on the FM linear detector.
Change the menu item to "63: M-MTR
ceiver and set this parameter for an "S-9" indication
on the S-meter on the LCD.
Change the menu item to "64: DTMF
ceiver with DTMF signal input (press any DTMF key
on the MH-36E8J microphone) and adjust this param-
eter for a maximum deviation of ±3.5 kHz (±0.3 kHz)
on the FM linear detector.
Change the menu item to "65: CTCSS
ceiver without microphone input and adjust this pa-
rameter for a maximum deviation of ±0.7 kHz (±0.1
kHz) on the FM linear detector.
Change the menu item to "66: DCS
ceiver without microphone input and adjust this pa-
rameter for a maximum deviation of ±0.7 kHz (±0.2
kHz) on the FM linear detector.
SSB Carrier Point Adjustment
Tune the transceiver to the 21 MHz band. Select menu
item "67: LSB-CP 67: LSB-CP 67: LSB-CP." Set the mode to LSB, and inject a 67: LSB-CP
67: LSB-CP
1.0 mV audio signal from the audio generator into the
MIC jack.
Lower the audio frequency down to 400 Hz and adjust
this parameter for 20 W output power from the trans-
ceiver.
Change the audio frequency to 2600 Hz, and confirm
that the output power is at least 20 W (± 2 W).
The adjustment for the USB carrier point is performed
in the same manner as done for LSB by changing the
transmission mode to USB and the menu item to "68:
USB-CP." USB-CP USB-CP
USB-CP USB-CP
62: DEV-N 62: DEV-N." Key the trans- 62: DEV-N 62: DEV-N
63: M-MTR 63: M-MTR." Key the trans- 63: M-MTR
63: M-MTR
64: DTMF". Key the trans-
64: DTMF 64: DTMF 64: DTMF
65: CTCSS 65: CTCSS 65: CTCSS". Key the trans-
65: CTCSS
66: DCS 66: DCS 66: DCS". Key the trans- 66: DCS
68: 68: 68: 68:
VSWR Adjustment
Connect a 100-Ohm dummy load to the antenna con-
nector.
Tune the transceiver to the 14 MHz band in the CW
mode.
Select menu item "69: SWR2 69: SWR2 69: SWR2." Key the transceiver 69: SWR2
69: SWR2
and press the [A] key to set this parameter.
Connect a 150-Ohm dummy load to the antenna con-
nector.
Select menu item "70: SWR3 70: SWR3 70: SWR3 70: SWR3." Key the transceiver 70: SWR3
and press the [A] key to set this parameter.
ATAS control voltage confirmation
Connect the DC voltmeter to the ANT (HF/50 MHz)
jack.
Select menu item "71: ATAS
71: ATAS 71: ATAS 71: ATAS." 71: ATAS
Press the [A] key, and confirm that the voltage is 9.0 to
10.1 Volts.
Press the [B] key, and confirm that the voltage is 7.5 to
8.5 Volts.
Press the [C] key, and confirm that the voltage is more
than 10.5 Volts.
This completes the internal alignment routine for all
bands. To save all settings and exit, press and hold in the
[F] key for at least 0.5 second.
Alignment
21