Transmit Adjustment - Icom IC-F4210D Service Manual

5-3 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
CONDITION
TX OUTPUT 1 • Channel
POWER • Transmitting
(High power)
(L2 power) 2 • Channel
• Transmitting
(L1 power) 3 • Channel
• Transmitting
MODULATION 1 • Channel
BALANCE • Transmitting
-Band low-
-Band center- 2 • Channel
• Transmitting
-Band high- 3 • Channel
• Transmitting
4 • Push [ENTER] on the PC's keyboard, to store the value and
quit the modulation balance adjustment mode.
FM DEVIATION 1 • Push [ENTER] on the PC's keyboard, to enter the FM
( Narrow mode) deviation (For narrow mode) adjustment mode.
-Band low-
2 • Channel : 1-9
• Transmitting
-Band center- 3 • Channel : 1-10
• Transmitting
-Band high- 4 • Channel : 1-11
• 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
-Band low- deviation (For wide mode) adjustment mode.
7 • Channel : 1-12
• Transmitting
-Band center- 8 • Channel : 1-13
• Transmitting
-Band high- 9 • Channel : 1-14
• Transmitting
10 • Push [ENTER] on the PC's keyboard, to store the value and
quit the FM deviation (For wide mode) adjustment mode.
†
; For all models except [USA].
OPERATION
: 1-3 • Connect an RF power meter to the an-
tenna connector.
: 1-4
: 1-5
: 1-6 1) Set the TX mode to "2" on the "AD-
JUSTMENT UTILITY" screen.
2) Connect a modulation analyzer with an
oscilloscope to the antenna connector
: 1-7
through an attenuator, and set it as;
HPF
: 1-8
LPF
De-emphasis : OFF
Detector
• Connect a modulation analyzer to the
antenna connector, through an attenuator,
and set it as described in the "MODULATION
BALANCE" above.
• Connect as audio generator to the [MIC]
jack, and set it as;
Frequency : 1 kHz (Sine wave)
Level : 150 mVrms
• Connect a modulation analyzer to
the antenna connector, through an
attenuator, and set it as described in the
"MODULATION BALANCE" above.
• Connect as audio generator to the [MIC]
jack, and set it as;
Frequency : 1 kHz (Sine wave)
Level : 150 mVrms
5 - 6
ADJUSTMENT
[Power (Hi)]
[Power (L2)]
[Power (L1)]
: OFF
: 15 kHz
: (P–P)/2
[BAL Start]
[MOD N Start]
[MOD N L]
[MOD N C]
[MOD N H]
[MOD N Start]
[MOD W Start]
[MOD W L]
[MOD W C]
[MOD W H]
[MOD W Start]
VALUE
ITEM
4.0 W
2.0 W
1.0 W
As flat as possible.
[BAL 1]
[BAL 2]
[BAL 3]
No over or under shoot.
–
–
±2.15 ±0.05 kHz
–
–
±4.25 ±0.05 kHz
–