Transmit Adjustments - Icom IC-M220 Service Manual

4-4 TRANSMIT ADJUSTMENTS

1) Select an adjustment item by pushing [↑]/[↓] on the PC keyboard.
2) Set or modify the adjustment value as specified by pushing [←]/[→], and then push [Enter] to store the value.
ADJUSTMENT
TX OUTPUT 1 • Operating channel: 16
POWER • Output power level: High
-Adjustment-
• Transmitting
(High power)
(Low power) 2 • Operating channel: 16
• Output power level: Low
• Transmitting
-Verification- 3 • Operating channel: 01
( High power, • Output power level: High
Band low)
• Transmitting
( High power,
4 • Operating channel: 88
Band high) • Output power level: High
• Transmitting
( Low power, 5 • Operating channel: 01
Band low) • Output power level: Low
• Transmitting
( Low power, 6 • Operating channel: 88
Band high)
• Output power level: Low
• Transmitting
TX POWER 1 • Operating channel: 16
CONSUMPTION • Output power level: High
-Verification-
• Maximum LCD brightness
( High power) • Transmitting
(Low power) 2 • Operating channel: 16
• Output power level: Low
• Maximum LCD brightness
• Transmitting
( High power, 3 • Operating channel: 01
Band low) • Output power level: High
• Maximum LCD brightness
• Transmitting
( High power, 4 • Operating channel: 88
Band high)
• Output power level: High
• Maximum LCD brightness
• Transmitting
( Low power, 5 • Operating channel: 01
Band Low)
• Output power level: Low
• Maximum LCD brightness
• Transmitting
( Low power, 6 • Operating channel: 88
Band high)
• Output power level: Low
• Maximum LCD brightness
• Transmitting
SPURIOUS 1 • Operating channel: 16
EMISSION • Output power level: High
-Verification- • Without modulation
( High power) • Transmitting
(Low power)
2 • Operating channel: 16
• Output power level: Low
• Without modulation
• Transmitting
TRANSCEIVER'S
CONDITION
•
•
• Connect the Spectrum analyzer to
OPERATION
Connect the RF power meter to
the antenna connector.
Connect the ammeter between
the power cable of the transceiver
and the DC power supply
the antenna connector through the
attenuator.
4-5
ADJUSTMENT
VALUE
ITEM
[RF POWER 23.5~24.2 W
(High)]
[RF POWER 0.75 W
(Low)]
– 20~25 W
0.5~1.0 W
– Less than
4.5 A
Less than
1.2 A
Less than
4.5 A
Less than
1.2 A
– Less than
–60 dBc