Transmit Adjustment - Icom IC-4061T Service Manual

6-3 TRANSMIT ADJUSTMENT

Select an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC's keyboard.
ADJUSTMENT
OUTPUT 1 • Channel
POWER • Transmitting
[Power (Hi)]
[Power (L2)] 2 • Channel
• Transmitting
[Power (L1)] 3 • Channel
• Transmitting
MODULATION 1 • Channel
BALANCE • Preset [MOD Narrow]
• No audio applied to the JIG cable.
[BAL (Narrow)]
• Set an FM deviation meter same as;
HPF
LPF
De-emphasis
Detector
• Push [P0] key while transmitting.
1 • Frequency
FM
• Connect an audio generator to the JIG
DEVIATION
cable and set as;
(NARROW)
Frequency
[MOD N C]
Level
• Set the FM deviation meter to same condi-
tion as "MODULATION BALANCE."
• Transmitting
2 • Channel
(NARROW)
• Transmitting
[MOD N L]
3 • Channel
(NARROW)
• Transmitting
[MOD N H]
4 • Channel
(WIDE)
• Transmitting
[MOD W C]
5 • Channel
(WIDE)
• Transmitting
[MOD W L]
6 • Channel
(WIDE)
• Transmitting
[MOD W H]
†
7 • Frequency
(MIDDLE)
• Transmitting
[MOD M C]
†
8 • Frequency
(MIDDLE)
• Transmitting
[MOD M L]
†
9 • Frequency
(MIDDLE)
• Transmitting
[MOD M H]
1 • Frequency
DIGITAL
• Preset [Digital Mode]
DEVIATION*
• Set the FM deviation meter to same condi-
[MOD D C]
tion as "MODULATION BALANCE."
• Transmitting
2 • Channel
[MOD D L]
• Transmitting
3 • Channel
[MOD D H]
• Transmitting
1 • Channel
CTCSS/DTCS
• CTCSS
DEVIATION
• No audio applied to the JIG cable.
[CTCSS/DTCS]
• Set the FM deviation meter to same condi-
tion as "MODULATION BALANCE."
• Transmitting
†
; [EUR-01] only.
*; Necessary only when the optional UT-119H or UT-126H is installed.
ADJUSTMENT CONDITION
: 5
: 6
: 2
: 2
: 80
: OFF
: 20 kHz
: OFF
: (P–P)/2
: 7
: 1.0 kHz
: 150 mV rms
: 8
: 9
: 2
: 1
: 3
: 10
: 11
: 12
: 13
: 7
: 14
: 15
: 16
: 151.4 Hz
MEASUREMENT
UNIT OPERATION
Top Connect an RF power meter to
panel the antenna connector.
Top Connect the FM deviation me-
panel ter to the antenna connector
through an attenuator.
Top Connect the FM deviation me-
panel ter to the antenna connector
through an attenuator.
Top Connect an FM deviation meter to
panel the antenna connector through
an attenuator.
Top Connect an FM deviation meter to
panel the antenna connector through
an attenuator.
6 - 5
VALUE
5.0 W
2.0 W
1.0 W
Set to square wave form
±2.05 to ±2.15 kHz
±4.05 to ±4.15 kHz
±3.2 to ±3.3 kHz
±1.35 to ±1.39 kHz
±0.68 to ±0.72 kHz