Icom IC-7410 Service Manual - Page 26

Transmit Adjustments, Tx Power & Power

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¤ TRANSMIT ADJUSTMENTS TX HF Reterns to the previous screen. MENU Starts the transmit adjustment. Stores the value and move to the next item. ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION MEASURE ADJUST POINT POINT PREPARATION • Connect an AG and millivoltmeter - - to [MIC], and then set it as; Frequency : 1.5 kHz - Level : 1 mV • Connect a power meter to [ANT1]. • Connect a 25 ohm dummy load to [ANT2]. TX TOTAL GAIN 1 • Display: "Total Gain HF" • Push [F-5]. (Automatically starts - [MAIN DIAL] • Receiving to transmit.) TX POWER & POWER 2 • Display: "POWER HF" • Push [F-5]. (Automatically starts - - METER SETTING • Receiving to transmit.) 3 • Display: "POWER HF Min" - [ANT1] [MAIN DIAL] • Transmitting 4 • Display: "POWER HF 10%" • Transmitting 5 • Display: "POWER HF Tuner" • Transmitting 6 • Display: "POWER HF 50%" • Transmitting 7 • Display: "POWER HF 75%" • Transmitting 8 • Display: "POWER HF 100%" • Transmitting 9 • Display: "POWER 50M" • Push [F-5]. (Automatically starts - - • Receiving to transmit.) 10 • Display: "POWER 50M Min" - [ANT1] [MAIN DIAL] • Transmitting 11 • Display: "POWER 50M 10%" • Transmitting 12 • Display: "POWER 50M Tuner" • Transmitting 13 • Display: "POWER 50M 50%" • Transmitting 14 • Display: "POWER 50M 75%" • Transmitting 15 • Display: "POWER 50M 100%" • Transmitting POWER DOWN SETTING 16 • Display: "POWER Down HF/50M" • Push [F-5]. (Automatically starts - [MAIN DIAL] • Transmitting to transmit.) AM CARRYER POWER 17 • Display: "POWER AM Ratio HF" • Push [F-5]. (Automatically starts - [MAIN DIAL] RATIO • Transmitting to transmit.) ID APC 18 • Display: "ID-APC" 1) Connect an ammeter to the Power [MAIN DIAL] • Receiving power supply line. supply line 2) Push [F-5]. (Automatically starts to transmit.) ALC METER 19 • Display: "ALC HF/50M" • Set the AG as; - - • Transmitting Frequency : 1.5 kHz DRIVE GAIN 20 • Display: "DRIVE HF/50M" Level : 10 mV - - • Transmitting SWR METER 21 • Display: "SWR HF/50M" - - • Transmitting Automatically returns to the transmit adjustment menu. VALUE - 50 W Push [F-5]. Push [F-5]. 1.5 W Push [F-5]. 10 W Push [F-5]. 10 W Push [F-5]. 50 W Push [F-5]. 80 W Push [F-5]. 105 W Push [F-5]. Push [F-5]. 1.5 W Push [F-5]. 10 W Push [F-5]. 10 W Push [F-5]. 50 W Push [F-5]. 80 W Push [F-5]. 100 W Push [F-5]. 50 W Push [F-5]. 27 W Push [F-5]. 23.5-24.0 A Push [F-5]. Push [F-5]. Push [F-5]. Push [F-5]. 4 - 8

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4 - 8
ADJUSTMENT ITEM
TRANSCEIVER'S
CONDITION
OPERATION
MEASURE
POINT
ADJUST
POINT
VALUE
PREPARATION
–
•
Connect an AG and millivoltmeter
to [MIC], and then set it as;
Frequency : 1.5 kHz
Level
: 1 mV
•
Connect a power meter to
[ANT1].
•
Connect a 25 ohm dummy load to
[ANT2].
–
–
–
TX TOTAL GAIN
1
• Display: "Total Gain HF"
• Receiving
•
Push [F-5]. (Automatically starts
to transmit.)
–
[MAIN DIAL]
50 W
Push [F-5].
TX POWER & POWER
METER SETTING
2
• Display: "POWER HF"
• Receiving
•
Push [F-5]. (Automatically starts
to transmit.)
–
–
Push [F-5].
3
• Display: "POWER HF Min"
• Transmitting
–
[ANT1]
[MAIN DIAL]
1.5 W
Push [F-5].
4
• Display: "POWER HF 10%"
• Transmitting
10 W
Push [F-5].
5
• Display: "POWER HF Tuner"
• Transmitting
10 W
Push [F-5].
6
• Display: "POWER HF 50%"
• Transmitting
50 W
Push [F-5].
7
• Display: "POWER HF 75%"
• Transmitting
80 W
Push [F-5].
8
• Display: "POWER HF 100%"
• Transmitting
105 W
Push [F-5].
9
• Display: "POWER 50M"
• Receiving
•
Push [F-5]. (Automatically starts
to transmit.)
–
–
Push [F-5].
10
• Display: "POWER 50M Min"
• Transmitting
–
[ANT1]
[MAIN DIAL]
1.5 W
Push [F-5].
11
• Display: "POWER 50M 10%"
• Transmitting
10 W
Push [F-5].
12
• Display:
"POWER 50M Tuner"
• Transmitting
10 W
Push [F-5].
13
• Display: "POWER 50M 50%"
• Transmitting
50 W
Push [F-5].
14
• Display: "POWER 50M 75%"
• Transmitting
80 W
Push [F-5].
15
• Display:
"POWER 50M 100%"
• Transmitting
100 W
Push [F-5].
POWER DOWN SETTING
16
• Display:
"POWER Down HF/50M"
• Transmitting
•
Push [F-5]. (Automatically starts
to transmit.)
–
[MAIN DIAL]
50 W
Push [F-5].
AM CARRYER POWER
RATIO
17
• Display:
"POWER AM Ratio HF"
• Transmitting
•
Push [F-5]. (Automatically starts
to transmit.)
–
[MAIN DIAL]
27 W
Push [F-5].
ID APC
18
• Display: "ID-APC"
• Receiving
1)
Connect an ammeter to the
power supply line.
2)
Push [F-5]. (Automatically starts
to transmit.)
Power
supply line
[MAIN DIAL]
23.5–24.0 A
Push [F-5].
ALC METER
19
• Display: "ALC HF/50M"
• Transmitting
•
Set the AG as;
Frequency : 1.5 kHz
Level
: 10 mV
–
–
Push [F-5].
DRIVE GAIN
20
• Display: "DRIVE HF/50M"
• Transmitting
–
–
Push [F-5].
SWR METER
21
• Display: "SWR HF/50M"
• Transmitting
–
–
Push [F-5].
Automatically returns to the transmit adjustment menu.
¤
TRANSMIT ADJUSTMENTS
MENU
HF
TX
Reterns to the previous screen.
Stores the value and move to the next item.
Starts the transmit adjustment.