Transmit Adjustment - Icom IC-F5121D Service Manual

6-3 TRANSMIT ADJUSTMENTS
1) Select an adjustment item using [↑]/[↓] on the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER].
TRANSCEIVER'S
ADJUSTMENT
TX POWER 1 • Channel
(Hi power) • Transmitting
(L2 power) 2 • Channel
• Transmitting
(L1 power) 3 • Channel
• Transmitting
MODULATION 1 Channel
BALANCE • Transmitting
(Band low)
2
(Band center) 3 • Channel
• Transmitting.
(Band high) 4 • Channel
• Transmitting.
5
FM DEVIATION 1 • Push [ENTER] on the PC's keyboard, to enter the FM deviation
( Narrow mode) (For narrow mode) adjustment mode.
-Band low-
2 • Channel
• Transmitting
-Band center- 3 • Channel
• Transmitting
-Band high- 4 • Channel
• Transmitting
5 • Push [ENTER] on the PC's keyboard, to store the value and quit
the FM deviation (For narrow mode) adjustment mode.
(Wide mode) 6 • Push [ENTER] on the PC's keyboard, to enter the FM deviation
-Band low- (For wide mode) adjustment mode.
7 • Channel
• Transmitting
-Band center- 8 • Channel
• Transmitting
-Band high- 9 • Channel
• Transmitting
10 • Push [ENTER] on the PC's keyboard, to store the value and quit
the FM deviation (For wide mode) adjustment mode.
(Middle mode)* 11 • Push [ENTER] on the PC's keyboard, to enter the FM deviation
-Band low- (For middle mode) adjustment mode.
12 • Channel
• Transmitting
-Band center- 13 • Channel
• Transmitting
-Band high- 14 • Channel
• Transmitting
15 • Push [ENTER] on the PC's keyboard, to store the value and quit
the FM deviation (For middle mode) adjustment mode.
*: [EUR] only
CONDITION
: 1-6 • Connect an RF power meter to the
antenna connector.
: 1-7
: 1-8
: 1-9 • Set the preset value.
1) Set the TX mode to "2" on the "Adjust
Utility" screen.
2) Push [ENTER] on the PC's keyboard,
to enter the modulation balance
adjustment mode.
• Connect a modulation analyzer with an
oscilloscope to the antenna connector
through an attenuator, and set it as;
: 1-10
HPF
LPF
De-emphasis : OFF
: 1-11
Detector
• Push [ENTER] on the PC's keyboard, to
store the value and quit the modulation
balance adjustment mode.
: 1-12 • Connect a modulation analyzer to the
antenna connector through an attenuator,
and set it as described in the "MODULATION
BALANCE" above.
: 1-13
• Connect as audio generator to the [MIC]
jack, and set it as;
: 1-14
Frequency
Level
: 1-15 • Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in the
: 1-16
"MODULATION BALANCE" above.
• Connect as audio generator to the [MIC]
: 1-17
jack, and set it as;
Frequency
Level
: 1-18 • Connect a modulation analyzer to the
antenna connector through an attenuator,
and set it as described in the "MODULATION
: 1-19
BALANCE" above.
• Connect as audio generator to the [MIC]
: 1-20
jack, and set it as;
Frequency
Level
OPERATION
: OFF
: 20 kHz
: (P–P)/2
: 1 kHz (Sine wave)
: 40 mVrms
: 1 kHz (Sine wave)
: 40 mVrms
: 1 kHz (Sine wave)
: 40 mVrms
6 - 5
ADJUSTMENT
VALUE
ITEM
50 W [50 W ver.]
[Power (Hi)]
25 W [25 W ver.]
25 W [50 W ver.]
[Power (L2)]
10 W [25 W ver.]
5.0 W [50 W ver.]
[Power (L1)]
2.5 W [25 W ver.]
[MOD (WIDE)] 150
[BAL Start] –
As flat as possible.
[BAL 1]
[BAL 2]
[BAL 3]
No over or under shoot.
[BAL Start] –
[MOD N Start] –
[MOD N L]
±2.05 to ±2.15
[MOD N C]
kHz
[MOD N H]
[MOD N Start] –
[MOD W Start] –
[MOD W L]
[MOD W C]
±4.05 to ±4.15
kHz
[MOD W H]
[MOD W Start] –
[MOD M Start] –
[MOD M L]
[MOD M C]
±3.25 to ±3.35
kHz
[MOD M H]
[MOD M Start] –