Rf Agc Adjustment; If Gain Adjustment - Yaesu FTDX3000 Technical Supplement

RF AGC Adjustment

 Set the following controls as indicated:
[ANT] : ANT 1
[IPO] : AMP1
[ATT] : OFF
[R.FLT] button: 3 kHz
[AGC] button: AUTO
[RF GAIN] knob: Fully clockwise
[MODE] button: CW
 Connect the RF Signal Generator to the "ANT
1" jack, and connect the Digital DC voltmeter
(high-Z) to TP1058 on the MAIN Unit.
 Press and hold in the [1.8(1)], [3.5(2)], and [7(3)]
keys, while turning the radio on, to enter the
alignment mode.
 Select the appropriate "Alignment Parame-
ter"using the Main Tuning Dial knob per the
chart right, then set the RF Signal Generator
output to each frequency & level, and adjust
the [CLAR(VFO-B)] knob for the corresponding
DCvoltmeter reading at each frequency.
A P rf s
lignment ArAmeter ignAl
3-01 RF-AGC 1.8 1.900 MHz, 76 dBµ
3-02 RF-AGC 3.5 3.750 MHz, 76 dBµ
3-03 RF-AGC 7 7.150 MHz, 76 dBµ
3-04 RF-AGC 10 10.125 MHz, 76 dBµ
3-05 RF-AGC 14 14.175 MHz, 76 dBµ
3-06 RF-AGC 18 18.117 MHz, 76 dBµ
3-07 RF-AGC 21 21.255 MHz, 76 dBµ
3-08 RF-AGC 24 24.940 MHz, 76 dBµ
3-09 RF-AGC 28 28.850 MHz, 76 dBµ
3-10 RF-AGC 50 52.000 MHz, 76 dBµ
 Press and hold in the [MENU] button for one
second to save the new setting and exit the
alignment mode.
( R
mAin U
nit eCeiveR
g vfo-A f dC
ennerAtor requenCy voltmeter
1.900 MHz 0.2 V ± 0.05 V
3.750 MHz 0.2 V ± 0.05 V
7.150 MHz 0.2 V ± 0.05 V
10.125 MHz 0.2 V ± 0.05 V
14.175 MHz 0.2 V ± 0.05 V
18.117 MHz 0.2 V ± 0.05 V
21.255 MHz 0.2 V ± 0.05 V
24.940 MHz 0.2 V ± 0.05 V
28.850 MHz 0.2 V ± 0.05 V
52.000 MHz 0.2 V ± 0.05 V
TP1058
) A
s P
eCtion lignment oint
ALIGNMENT-9

IF Gain Adjustment

 Set the following controls as indicated:
[ANT] : ANT 1
[IPO] : AMP1
[ATT] : OFF
[R.FLT] : 3 kHz
[AGC] : AUTO
[RF GAIN] : Fully clockwise
[MODE] : CW-USB
 Set the CW PITCH frequency to "700 Hz" via
Menu item "054 CW PITCH".
 Connect the AF millivoltmeter and 4 Ohm
dummy load to the EXT SP jack.
 Connect the RF Signal Generator to the "ANT 1"
jack, then set the output level to 36 dBµ at 1.900
MHz.
 Set the Main Band (VFO-A) frequency to 1.900
MHz in the CW mode.
 Press and hold in the [1.8(1)], [3.5(2)], and [7(3)]
keys, while turning the radio on, to enter the
alignment mode.
 Adjust the Main [AF GAIN] knob so that the
AF millivoltmeter reading is "0 dB".
 Select the appropriate "Alignment Parame-
ter"using the Main Tuning Dial knob per the
chart below, then set the RF Signal Generator
outputto each frequency & level, and adjust the
[CLAR(VFO-B)] knob for the corresponding AC
millivoltmeter reading at each frequency.
 Press and hold in the [MENU] button for one
second to save the new settings and exit the
alignment mode.
A P rf s g
lignment ArAmeter ignAl
4-01 IF-G 1.8 1.900 MHz, +10 dBµ
4-02 IF-G 3.5 3.750 MHz, +10 dBµ
4-03 IF-G 7 7.150 MHz, +10 dBµ
4-04 IF-G 10 10.125 MHz, +10 dBµ
4-05 IF-G 14 14.175 MHz, +10 dBµ
4-06 IF-G 18 18.117 MHz, +10 dBµ
4-07 IF-G 21 21.255 MHz, +10 dBµ
4-08 IF-G 24 24.940 MHz, +10 dBµ
4-09 IF-G 28 28.850 MHz, +10 dBµ
4-10 IF-G 50 52.000 MHz, +7 dBµ
FT 3000 Technical Supplement
DX
Alignment
vfo-A f Af
enerAtor requenCy millivoltmeter
1.900 MHz –1.5 dB (±0.5 dB)
3.750 MHz –1.5 dB (±0.5 dB)
7.150 MHz –1.5 dB (±0.5 dB)
10.125 MHz –1.5 dB (±0.5 dB)
14.175 MHz –1.5 dB (±0.5 dB)
18.117 MHz –1.5 dB (±0.5 dB)
21.255 MHz –1.5 dB (±0.5 dB)
24.940 MHz –1.5 dB (±0.5 dB)
28.850 MHz –1.5 dB (±0.5 dB)
52.000 MHz –1.5 dB (±0.5 dB)