Transmit Adjustments - Icom IC-T70A Service Manual

5-2 TRANSMIT ADJUSTMENTS

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.
ADJUSTMENT
TX DRIVE AMP 1 • Frequency: Displayed
IDLING CURRENT
(at 7.2 V)
VHF
[High power]
[MIddle power] 2 • Transmitting
[Low power] 3 • Transmitting
UHF 4 • Transmitting
[High power]
[Middle power] 5 • Transmitting
[Low power] 6 • Transmitting
TX FINAL AMP 1 • Frequency: Displayed
IDLING CURRENT
(at 7.2 V)
VHF
[High power]
[MIddle power] 2 • Transmitting
[Low power] 3 • Transmitting
UHF 4 • Transmitting
[High power]
[Middle power] 5 • Transmitting
[Low power] 6 • Transmitting
¤ CONNECTION
RF POWER METER
(10 W/50 Ω)
TRANSCEIVER'S
CONDITION
1) Connect an RF power meter to the
• Transmitting
2) Connect an ammeter between the
1) Connect an RF power meter to the
• Transmitting
2) Connect an ammeter between the
OPERATION
antenna connector.
power supply and the transceiver.
antenna connector.
power supply and the transceiver.
• POWER SUPPLY
AMMETER
+ −
+ –
DC power supply
6–10 V/3 A
5 - 3
ADJUSTMENT
ITEM
150–190 mA
230–270 mA
1.05–1.15 A
0.55–0.65 A
0.15–0.25 A
1.05–1.15 A
0.55–0.65 A
0.15–0.25 A
VOLTAGE METER
"7.2 V"
+
−
+
–
VALUE