Icom IC-7300 Guide

S-15218XZ-C1
March 2016
HF/50 MHz TRANSCEIVER
ADJUSTMENT PROCEDURE

4-1
SECTION 4 ADJUSTMENT PROCEDURE
4-1 PREPARATION
MREQUIRED EQUIPMENTS
M GENERAL CONNECTION
• Front panel
• Rear panel
EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE
Shunt plug Modified 3.5 mm (1/8 inch) monaural plug
(See the illustration below.)
Dummy Loads Impedance:
50 Ωand 100 Ω/120 W
Attenuator Attenuation: 50 dB/120 W
RF power meter
(50 Ω terminated)
Measuring range: 1–120 W
Frequency range: 0.1–60 MHz
SWR: Less than 1.2 : 1
Standard signal
generator (SSG)
Frequency range: 0.1–60 MHz
Output level:
–20 dBµ to +94 dBµ
(–127 to –13 dBm)
Frequency counter
Frequency range: 0.1–60 MHz
Frequency accuracy: ±1 ppm or better
Input level: Less than 1 mW
Audio generator
(AG)
Frequency range: 300–3000 Hz
Output level: 1–500 mV
AC Millivoltmeter Measuring range: 10 mV to 10 V
[SP]
[REMOTE][ANT]
<Rear view>
<Front view>
AC MILLIVOLT METER
(10 mV to 10 V)
EXT. SPEAKER
(2 W/8 Ω)
+–
+
–
DUMMY LOAD
(50 or 100 Ω/120 W)
RF POWER METER
(120 W/50 Ω)
STANDARD SIGNAL GENERATOR
(0.1–60 MHz)
NEVER TRANSMIT while the SSG is connected.
FREQUENCY COUNTER
(0.1–60 MHz)
ATTENUATOR
(50 dB/120 W)
[DC 13.8V]
Fuses
25 A
DC power supply
(13.8 V/30 A)
⊕
−
Black
Red⊕
−
Supplied DC cable
[MIC]
Audio
generator
PTT
[MIC]
AC millivolt-
meter
MIC
PTT
MICE
GENERAL CONNECTION
(Short)
• Short plug
(For entering the adjustment mode)
3.5 mm (1/8 inch) monaural plug
(Shunt)
14.150.00
USB
TX
ADJUST MODE
FIL2
FRONTPreset TX/IDRX TUNER/REF
Sub adjustment menu
<Main adjustment menu screen >
14.150.00
USB
TX
ADJUST MODE
== RX ==
FIL2
Gain S Meter
Rotate to adjust
Push to exit the menu
Sub adjustment menu
Adjustment item
<Sub adjustment menu screen example>
[SP]
[REMOTE][ANT]
<Rear view>
<Front view>
AC MILLIVOLT METER
(10 mV to 10 V)
EXT. SPEAKER
(2 W/8 Ω)
+–
+
–
DUMMY LOAD
(50 or 100 Ω/120 W)
RF POWER METER
(120 W/50 Ω)
STANDARD SIGNAL GENERATOR
(0.1–60 MHz)
NEVER TRANSMIT while the SSG is connected.
FREQUENCY COUNTER
(0.1–60 MHz)
ATTENUATOR
(50 dB/120 W)
[DC 13.8V]
Fuses
25 A
DC power supply
(13.8 V/30 A)
⊕
−
Black
Red⊕
−
Supplied DC cable
[MIC]
Audio
generator
PTT
[MIC]
AC millivolt-
meter
MIC
PTT
MICE
GENERAL CONNECTION
(Short)
• Short plug
(For entering the adjustment mode)
3.5 mm (1/8 inch) monaural plug
(Shunt)
14.150.00
USB
TX
ADJUST MODE
FIL2
FRONTPreset TX/IDRX TUNER/REF
Sub adjustment menu
<Main adjustment menu screen >
14.150.00
USB
TX
ADJUST MODE
== RX ==
FIL2
Gain S Meter
Rotate to adjust
Push to exit the menu
Sub adjustment menu
Adjustment item
<Sub adjustment menu screen example>

4-1 PREPARATION (continued)
4-2
1) Connect the shunt plug to [REMOTE] (See page 5-1).
2) While holding down the [MENU] and [FUNCTION] keys, turn ON the transceiver power.
3) The main adjustment menu appears.
1) Remove the shunt plug from [REMOTE].
2) Turn OFF the power.
3) Turn ON the power again.
M ENTERING THE ADJUSTMENT MODE
M QUITTING THE ADJUSTMENT MODE
[SP]
[REMOTE][ANT]
<Rear view> <Front view>
AC MILLIVOLT METER
(10 mV to 10 V)
EXT. SPEAKER
(2 W/8 Ω)
+–
+
–
DUMMY LOAD
(50 or 100 Ω/120 W)
RF POWER METER
(120 W/50 Ω)
STANDARD SIGNAL GENERATOR
(0.1–60 MHz)
NEVER TRANSMIT while the SSG is connected.
FREQUENCY COUNTER
(0.1–60 MHz)
ATTENUATOR
(50 dB/120 W)
[DC 13.8V]
Fuses
25 A
DC power supply
(13.8 V/30 A)
⊕
−
Black
Red⊕
−
Supplied DC cable
[MIC]
Audio
generator
PTT
[MIC]
AC millivolt-
meter
MIC
PTT
MICE
GENERAL CONNECTION
(Short)
• Short plug
(For entering the adjustment mode)
3.5 mm (1/8 inch) monaural plug
(Shunt)
14.150.00
USB
TX
ADJUST MODE
FIL2
FRONTPreset TX/IDRX TUNER/REF
Sub adjustment menu
<Main adjustment menu screen >
14.150.00
USB
TX
ADJUST MODE
== RX ==
FIL2
Gain S Meter
Rotate to adjust
Push to exit the menu
Sub adjustment menu
Adjustment item
<Sub adjustment menu screen example>
[SP]
[REMOTE][ANT]
<Rear view> <Front view>
AC MILLIVOLT METER
(10 mV to 10 V)
EXT. SPEAKER
(2 W/8 Ω)
+–
+
–
DUMMY LOAD
(50 or 100 Ω/120 W)
RF POWER METER
(120 W/50 Ω)
STANDARD SIGNAL GENERATOR
(0.1–60 MHz)
NEVER TRANSMIT while the SSG is connected.
FREQUENCY COUNTER
(0.1–60 MHz)
ATTENUATOR
(50 dB/120 W)
[DC 13.8V]
Fuses
25 A
DC power supply
(13.8 V/30 A)
⊕
−
Black
Red⊕
−
Supplied DC cable
[MIC]
Audio
generator
PTT
[MIC]
AC millivolt-
meter
MIC
PTT
MICE
GENERAL CONNECTION
(Short)
• Short plug
(For entering the adjustment mode)
3.5 mm (1/8 inch) monaural plug
(Shunt)
14.150.00
USB
TX
ADJUST MODE
FIL2
FRONTPreset TX/IDRX TUNER/REF
Sub adjustment menu
<Main adjustment menu screen >
14.150.00
USB
TX
ADJUST MODE
== RX ==
FIL2
Gain S Meter
Rotate to adjust
Push to exit the menu
Sub adjustment menu
Adjustment item
<Sub adjustment menu screen example>
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE
PREPARATION 1 – 1) Connect the SSG to the antenna connector,
and then set it as:
Frequency : 14.1515 MHz
Modulation : None
2) Touch [GAIN] to enter to the receive adjust-
ment mode.
–
RX TOTAL GAIN 2 • Display: "Total Gain PRE OFF ref"
• Receive
• Set the SSG as;
Level : +34 dBµ (–73 dBm)
Touch [SET].
(A beep sounds, and
then another beeps
sound 2 sec. later.)
3 • Display: "Total Gain PRE OFF set"
• Receive
• Set the SSG as;
Level : OFF
Touch [SET].
(A beep sounds, and
then another beeps
sound 20 sec. later.)
4 • Display: "Total Gain PRE1 ref"
• Receive
• Set the SSG as;
Level :+34 dBµ (–73 dBm)
Touch [SET].
(A beep sounds, and
then another beeps
sound 2 sec. later.)
5 • Display: “Total Gain PRE1 set"
• Receive
• Set the SSG as;
Level :OFF
Touch [SET].
(A beep sounds, and
then another beeps
sound 20 sec. later.)
S-METER 6 • Display: "HF S9 Level"
• Receive
• Set the SSG as;
Level :+34 dBµ (–73 dBm)
Touch [SET].
(A beep sounds, and
then another beep
sounds 1 sec. later.)
7 • Display: "HF S9+60 Level"
• Receive
• Set the SSG as;
Level :+90 dBµ (–17 dBm)
• Push [EXIT] to return to the main adjustment menu.
• Touch [RX] on the main adjustment menu screen.
4-2 RECEIVE ADJUSTMENTS
NOTE: DO NOT change the SSG output level until the second beep sounds.

4-3
4-3 TX IDLING CURRENT ADJUSTMENTS
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE
PREPARATION 11) Connect the power meter (or dummy load)
to the antenna connector.
2) Touch [ID] to enter to the TX idling current
adjustment mode.
–
ADJUSTMENT 2 • Display: “VDL IDL Set”
• Receive
– Touch [SET].
(A beep sounds, and
then another beep
sounds 0.5 sec. later.)
3 • Display: “FINAL ID SET”
• Receive
4 • Display: “FINAL1 IDV”
• Transmit (automatic)
5 • Display: “FINAL2 IDV”
• Transmit (automatic)
6 • Display: “DRIVER ID SET”
• Transmit (automatic)
7 • Display: “DRIVER IDV”
• Transmit (automatic)
• Push [EXIT] to return to the TX adjustment menu.
• Touch [TX/ID] on the main adjustment menu screen.
NOTE: The transceiver automatically transmits when a TX adjustment item is selected.

• Touch [TX/ID] on the main adjustment menu screen.
4-4
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION ADJUST
POINT VALUE
TX POWER &
POWER METER SETTING
(Preparation)
1 • Display: “TX POWER SET”
• Receive
1)
Connect the AG with the millivoltmeter
to [MIC], and then set it as;
Frequency : 1.5 kHz
Level : 30 mVrms
2) Connect the power meter to the
antenna connector.
3) Touch [Power] to enter to the TX
power adjustment mode.
– –
(HF BAND) 2 • Display: "TX Total HF Gain"
• Transmit (automatic)
•
Adjust the TX power by rotating
[MAIN DIAL], and then touch [SET].
[MAIN DIAL] 50 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
3 • Display: "POWER HF 1%"
• Transmit (automatic)
2 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
4 • Display: "POWER HF 10%"
• Transmit (automatic)
12.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
5 • Display: "POWER HF TUNE"
• Transmit (automatic)
6 • Display:
"POWER HF 50%"
• Transmit (automatic)
52.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
7 • Display:
"POWER HF 100%"
• Transmit (automatic)
105 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
AM CARRIER POWER
(HF BAND)
8 • Display:
"POWER AM Ratio HF"
• Transmit (automatic)
1) Touch [SET].
(Automatically starts to transmit.)
2) Adjust the TX power by rotating
[MAIN DIAL], and then touch [SET].
25 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
9 • Display: "POWER 50M SET"
• Transmit (automatic)
––Touch [SET].
TX POWER &
POWER METER SETTING
(50 MHz band)
10 • Display: "TX Total 50M Gain"
• Transmit (automatic)
• Adjust the TX power by rotating
[MAIN DIAL], and then touch [SET].
[MAIN DIAL]
50 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
11 • Display: "POWER 50M 1%"
• Transmit (automatic)
–2 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
12 • Display: "POWER 50M 10%"
• Transmit (automatic)
12.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
13 • Display: "POWER 50M TUNE"
• Transmit (automatic)
14 • Display: "POWER 50M 50%"
• Transmit (automatic)
52.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
15 • Display: "POWER 50M 100%"
• Transmit (automatic)
105 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
AM CARRIER POWER RATIO
(50 MHz band)
16 • Display: "POWER AM Ratio 50M"
• Transmit (automatic)
1) Touch [SET].
(Automatically starts to transmit.)
2) Adjust the TX power by rotating
[MAIN DIAL], and then touch [SET].
25 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
17 • Display: "POWER 70M SET"
• Receive
– – Touch [SET].
4-4 TX POWER ADJUSTMENTS
(Continued on the next page.)
NOTE: The transceiver automatically transmits when a TX adjustment item is selected.

4-5
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION ADJUST
POINT VALUE
TX POWER &
POWER METER SETTING
(70 MHz band)
18 • Display: "TX Total 70M Gain"
• Transmit (automatic)
–
[MAIN DIAL]
25 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
19 • Display: "POWER 70M 1%"
• Transmit (automatic)
2 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
20 • Display: "POWER 70M 10%"
• Transmit (automatic)
7.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
21 • Display: "POWER 70M TUNE"
• Transmit (automatic)
10 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
22 • Display: "POWER 70M 50%"
• Transmit (automatic)
27.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
23 • Display: "POWER 70M 100%"
• Transmit (automatic)
52.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
AM CARRIER POWER
(70 MHz band)
Only for [#03, 05 and 06]
24 • Display: "POWER AM Ratio 70M"
• Transmit (automatic)
1) Touch [SET].
(Automatically starts to transmit.)
2)
Adjust the TX power by rotating
[MAIN DIAL], and then touch [SET].
12.5 W
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
• Push [EXIT] to return to the main adjustment menu.
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE
PREPARATION 1 • Display: “TX POWER SET”
• Receive
1)
Connect the AG with the millivoltmeter
to [MIC], and then set it as;
Frequency : 1.5 kHz
Level : 30 mVrms
2) Connect the power meter to the
antenna connector.
3) Touch [ALC] on the TX adjustment
menu, to enter to the TX amplifier
adjustment mode.
–
ALC METER 2 • Display: "ALC HF"
• Transmit (automatic)
– Touch [SET].
(A beep sounds, and then another
beeps sound 3 sec. later.)
3 • Display: "ALC 50M"
• Transmit (automatic)
Only for [#03, 05 and 06] 4 • Display: "ALC 70M"
• Transmit (automatic)
DRIVE AMP GAIN 5 • Display: "DRIVE HF"
• Transmit (automatic)
Touch [SET].
(A beep sounds, and then another
beeps sound 10 sec. later.)
6 • Display: "DRIVE 50M"
• Transmit (automatic)
Touch [SET].
(A beep sounds, and then another
beeps sound 3 sec. later.)
7 • Display: "DRIVE 70M"
• Transmit (automatic)
Touch [SET].
(A beep sounds, and then another
beeps sound 1 sec. later.)
SWR METER 8 • Display: "SWR2 (HF)"
• Transmit (automatic)
• Connect the 50 Ωdummy load to the
antenna connector.
Touch [SET].
(A beep sounds, and then another
beeps sound 3 sec. later.)
9 • Display: "SWR2 (50M)"
• Transmit (automatic)
Only for [#03, 05 and 06] 10 • Display: "SWR2 (70M)"
• Transmit (automatic)
Id APC 11 • Display: "ID-APC"
• Transmit (automatic)
– Touch [SET].
(A beep sounds, and then another
beeps sound 2 sec. later.)
• Push [EXIT] to return to the main adjustment menu.
• Touch [TX/ID] on the main adjustment menu screen.
4-5 TX AMPLIFIER ADJUSTMENTS
4-4 TX POWER ADJUSTMENTS (continued)
NOTE: The transceiver automatically transmits when a TX adjustment item is selected.

4-6
4-6 FREQUENCY ADJUSTMENTS
ADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION VALUE
PREPARATION 1
–
1) Connect the power meter to the antenna
connector.
2) Touch [TUNER/REF].
(Enters to the [TUNER/REF ADJ.] menu.)
3) Touch [TUNER].
Touch [TUNER/REF].
(Enters to the [TUNER/
REF ADJ.] menu.)
TUNER REFERENCE
VOLTAGE ADJUSTMENT
(HF and 50 MHz bands)
2 • Display: "Tune IREFV HF 50M"
• Transmit (automatic)
– Touch [SET].
(A beep sounds, and
then another beeps
sound 11 sec. later.)
(70 MHz band)
Only for [#03, 05 and 06]
3 • Display: “Tune IREFV HF 70M”
• Transmit (automatic)
Touch [SET].
(A beep sounds, and
then another beeps
sound 1 sec. later.)
REFERENCE
FREQUENCY
4 – 1) Connect the frequency counter to the
antenna connector, through the 50 dB
attenuator.
2) Touch [MENU] REF adjustment menu.
–
5 • Display: "REF OSC"
• Transmit (automatic)
1)
Set the transmit frequency by rotating
[MAIN DIAL].
2) Touch [SET].
50.100000 MHz
(±1.2 Hz)
(A beep sounds, and
then another beeps
sound 0.5 sec. later.)
• Push [EXIT] to return to the main adjustment menu.
• Touch [TUNER/REF] on the main adjustment menu screen.
NOTE: The transceiver automatically transmits when a TX adjustment item is selected.