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Icom IC-T70A Service Manual

Icom IC-T70A
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5 - 10
ADJUSTMENT
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
TONE DEVIATION
[FM Mode]
DTCS (VHF)
1 Frequency: Displayed
• Transmitting
1) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as;
HPF : OFF
LPF : 20 kHz
2)
Apply no audio signal to the [MIC] jack.
±0.7 to ±0.8
kHz
DTCS (UHF) 2 Frequency: Displayed
• Transmitting
CTCSS (VHF) 3 Frequency: Displayed
• Transmitting
CTCSS (UHF) 4 Frequency: Displayed
• Transmitting
DTMF (VHF) 5 Frequency: Displayed
• Transmitting
±3.4 to ±3.6
kHz
DTMF (UHF) 6 Frequency: Displayed
• Transmitting
European tone
(
VHF)
7 Frequency: Displayed
• Transmitting
European tone
(
UH
F)
8 Frequency: Displayed
• Transmitting
[Narrow FM Mode]
DTCS (VHF)
9 Frequency: Displayed
• Transmitting
±0.37 to ±0.38
kHz
DTCS (UHF) 10 • Frequency: Displayed
• Transmitting
CTCSS (VHF) 11 • Frequency: Displayed
• Transmitting
CTCSS (UHF) 12 • Frequency: Displayed
• Transmitting
DTMF (VHF) 13 • Frequency: Displayed
• Transmitting
±1.74 to ±1.76
kHz
DTMF (UHF) 14 • Frequency: Displayed
• Transmitting
European tone
(
VHF)
15 • Frequency: Displayed
• Transmitting
European tone
(
UH
F)
16 • Frequency: Displayed
• Transmitting
5-4 MODURATION ADJUSTMENTS (Continued)
1) Select an adjustment item using [VOL].
2) Set or modify the adjustment value as specifi ed using [DIAL], then push [BAND] to store the adjustment value.
MODULATION ANALYZER
(30– 600 MHz)
SETTING
HPF : OFF
LPF : 20 kHz
ATTENUATOR
(30 dB/10 W)
• POWER SUPPLY
AMMETER
+
DC power supply
6–10 V/3 A
+
“7.2 V”
VOLTAGE METER
+
+
¤ CONNECTION
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Icom IC-T70A Specifications

General IconGeneral
Operating frequency144 – 148, 440 – 450 MHz
Display typeLCD
Backlight displayYes
Antenna connector typeFA-S270C
Number of antenna connectors1
Battery typeBP-265
Product colorBlack
Operating temperature (T-T)-20 - 60 °C
Number of batteries included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Depth30 mm
Width58 mm
Height111 mm
Weight380 g

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