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4-5 RECEIVER ADJUSTMENT (continue)
ADJUSTMENT
ADJUSTMENT CONDITION
DISPLAY
OPERATION
RECEIVE
SENSITIVITY
(VHF/UHF)
6 • Set an SSG as ;
Frequency : 169.8015 MHz
• Receiving
Tuned BPF(170 M)
Push [F-4 (SET)].
7 • Set an SSG as ;
Frequency : 400.2015 MHz
• Receiving
Tuned BPF(400 M)
Push [F-4 (SET)].
8 • Set an SSG as ;
Frequency : 435.2015 MHz
• Receiving
Tuned BPF(435 M)
Push [F-4 (SET)].
9 • Set an SSG as ;
Frequency : 469.8015 MHz
• Receiving
Tuned BPF(470 M)
Push [F-4 (SET)].
RX
TOTAL GAIN
(VHF/UHF)
1 • Connect an SSG to [ANT2] con-
nector and set as;
Frequency : 435.2015 MHz
Level
:
500 µV* (–53 dBm)
or OFF
Modulation
:
OFF
• Connect an AC millivolt meter to
[EXT SP] jack with an 8
Ω
load.
• Receiving
Total Gain(144M/430M)
Set 25 dB of AF level difference between
500 µV and no signal input from the SSG
using with [DIAL]. Then push [F-4 (SET)].
S-METER
(WFM)
1 • Connect an SSG to the [ANT2]
connector and set as;
Frequency : 90.80 MHz
Level
:
0.56
µV* (–112 dBm)
Modulation
:
OFF
• Receiving
S0 Level(WFM)
Push [F-4 (SET)].
2 • Set an SSG as;
Level
: 3.2 µV* (–97 dBm)
• Receiving
S9 Level(WFM)
Push [F-4 (SET)].
3 • Set an SSG as;
Level
: 32 µV* (–77 dBm)
• Receiving
S9+60 Level(WFM)
Push [F-4 (SET)].
After the adjustment, exit the adjustment mode.
*The output level of a standard signal generator (SSG) is indicated as SSG's open circuit.
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
ADJUSTMENT
UNIT
LOCATION
UNIT
ADJUST
WFM
DISTORTION
1 • Operating freq : 90.00000 MHz
MODE
:
WFM
Preamp :
ON
• Connect an SSG to [ANT2] con-
nector and set as;
Frequency : 90.0000 MHz
Level
: 3.2 µV* (–97 dBm)
Modulation
:
1
kHz
Deviation :
50
kHz
• Receiving
REAR
panel
Connect a distortion me-
ter to [EXT SP] jack with
an 8
Ω
load.
M i n i mu m A F
distortion level
MAIN
C1423
Содержание IC-7000
Страница 1: ...SERVICE MANUAL HF VHF UHF ALL MODE TRANSCEIVER S 14214HZ C1 Dec 2005 ...
Страница 27: ...4 12 L703 L702 RX peak adjustment point MAIN UNIT ...
Страница 29: ...4 14 C1423 WFM distortion adjustment point MAIN UNIT ...
Страница 55: ......
Страница 92: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14214HZ C1 2005 Icom Inc ...