Yaesu FT-450D, Техническое дополнение

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ALIGNMENT-6
Alignment
FT-450 Series Technical Supplement
Software Adjustment
Preparation

Set the VFO frequency for each band as indicated:

Set the following controls as indicated:
[
IPO ] button: OFF
[ ATT ] button: OFF
[ AGC ] button: AUTO
[ SHIFT ] knob: 12-o'clock position
[ AF GAIN ] knob: 12-o'clock position
[ RF GAIN ] knob: Fully clockwise
MODE: CW
CONTOUR: OFF
NOTCH: OFF
DNR: OFF
S-meter Adjustment

Connect the RF Signal Generator to the "ANT"
jack.

Press and hold in the [
ATT / IPO
], [
NB
], and [
AGC
]
buttons, while turning the radio on, to enter the
alignment mode.

Select the appropriate "Alignment Parameter"
using the [
DSP/SEL
] knob per the chart below,
then set the RF Signal Generator output to each
level, and adjust the [
MAIN DIAL
] knob for the
corresponding S-meter deflection.
ALC Adjustment

Connect the 50-Ohm Dummy Load and Wattme-
ter to the "ANT" jack.

Press and hold in the [ ATT / IPO ], [ NB ], and [ AGC ]
buttons, while turning the radio on, to enter the
alignment mode.

Rotate the [ DSP/SEL ] knob to select the align-
ment parameter "I-ALC1".

Press the PTT switch, then rotate the [ MAIN DIAL ]
knob for 140 W ± 10 W on the Wattmeter. Note
the alignment value which is displayed on the
frequency display area of the LCD.

Release the PTT switch.

Rotate the [ DSP/SEL ] knob to select the align-
ment parameter "I-ALC2".

Press the PTT switch, then rotate the [ MAIN DIAL ]
for 110 W ± 5 W on the Wattmeter.
Release the PTT switch.

Rotate the [ DSP/SEL ] knob to select the align-
ment parameter "I-ALC3".

Rotate the [ MAIN DIAL ] knob to set an alignment
value to same value, which was noted in the pre-
vious step ("I_ALC1").

Press and hold in the [ F ] button for 2 seconds to
save the new setting and exit from the alignment
mode.
Power Adjustment (100 W)

Connect the 50-Ohm Dummy Load and Wattme-
ter to the "ANT" jack.

Press and hold in the [ ATT / IPO ], [ NB ], and [ AGC ]
buttons, while turning the radio on, to enter the
alignment mode.

Select the appropriate "Alignment Parameter"
using the [
DSP/SEL ] knob per the chart below,
and adjust the [ MAIN DIAL ] knob for the corre-
sponding Wattmeter deflection while pressing
the PTT switch.
O
PERATING
B
AND
General Band
1.8 MHz Band
3.5 MHz Band
7 MHz Band
14 MHz Band
21 MHz Band
28 MHz Band
50 MHz Band
F
REQUENCY
1.200 MHz
1.900 MHz
3.750 MHz
7.150 MHz
14.175 MHz
21.255 MHz
28.850 MHz
52.000 MHz

Press and hold in the [ F ] button for 2 seconds to
save the new settings and exit from the alignment
mode.
S-
METER
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
S-1 (3 dots)
A
LIGNMENT
P
ARAMETER
SMADJ0
SMADJ1
SMADJ2
SMADJ3
SMADJ4
SMADJ5
SMADJ6
SMADJ
RF S
IGNAL
G
ENERATOR
1.200 MHz, 32 dB μ
1.900 MHz, 12 dB μ
3.750 MHz, 12 dB μ
7.150 MHz, 12 dB μ
14.175 MHz, 12 dB μ
21.255 MHz, 12 dB μ
28.850 MHz, 12 dB μ
52.000 MHz, 12 dB μ
A
LIGNMENT
P
ARAMETER
1PO100
2PO100
3PO100
4PO100
5PO100
6PO100
7PO100
W
ATTMETER
100 W ±2 W
100 W ±2 W
100 W ±2 W
100 W ±2 W
100 W ±2 W
90 W ±2 W
100 W ±2 W

Press and hold in the [
F
] button for 2 seconds to
save the new settings and exit from the alignment
mode.