Icom IC-F43TR Service Manual page 16

5-2 SOFTWARE ADJUSTMENT (TRANSMITTING)
Select an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.
ADJUSTMENT
PLL LOCK • Operating CH.
1
VOLTAGE • Receiving
[LV (RX LVA)]
• Operating CH.
[LV (TX LVA)] 2
• Transmitting
3
• Operating CH.
• Receiving
4
• Operating CH.
• Transmitting
1
REFERENCE • Operating CH.
• Connect an RF power meter or 50 Ω
FREQUENCY
[REF] dummy load to the antenna connector.
• Transmitting
1
OUTPUT • Operating CH.
POWER • Transmitting
[Power (Hi)]
2
[Power (Low)] • Operating CH.
• Transmitting
1
MODULATION • Operating freq. : CH3
BALANCE • No audio applied to the [MIC] input.
[BAL N] • Set an FM deviation meter as:
HPF
LPF
De-emphasis : OFF
Detector
• IF bandwidth
• Push the [P0] while transmitting
1
FM • Operating freq. : CH3
DEVIATION • Set the FM deviation meter as:
[MOD N] HPF
(Narrow) LPF
De-emphasis : OFF
Detector
• Connect the audio generator to the
[MIC] connector and set as
• Transmitting
2
[MOD Ratio] • Operating freq. : CH4
(Middle) • Transmitting
CTCSS/DTCS • Operating freq. : CH5
DEVIATION • No audio applied to the [MIC] input.
[CTCS/DTCS] • Transmitting
ADJUSTMENT CONDITION
: CH2
: CH2
: CH6
: CH6
: CH6
: CH1
: CH1
: OFF
: 20 kHz
: (P–P)/2
: Narrow
: OFF
: 20 kHz
: (P–P)/2
: 1.0 kHz/150 mVrms
MEASUREMENT
UNIT LOCATION
MAIN
Check the "LV" item on the CS-
F43TR ADJ's display.
MAIN
Check the "LV" item on the CS-
F43TR ADJ's display.
Top
Loosely couple a frequency
panel
counter to the antenna connec-
tor.
Top
Connect an RF power meter to
panel
the antenna connector.
Connect an FM deviation meter
with an oscilloscope to the
antenna connector through an
attenuator.
Top
Connect an FM deviation meter
panel
to the antenna
through the attenuator.
Top
Connect an FM deviation meter
panel
to the antenna
through the attenuator.
5 - 4
VALUE
1.0 V
1.0 V
3.3–4.5 V
(Verify)
3.3–4.5 V
(Verify)
470.0000 MHz [L]
520.0000 MHz [H]
4.0 W
1.0 W
Set to square wave
form
±2.10 kHz
connector
±4.10 kHz
±0.70 kHz
connector