Transmitter Adjustment - Icom IC-2SET Service Manual

6-4
TRANSMITTER ADJUSTMENT
ADJUSTMENT
ADJUSTMENT
CONDITIONS
MEASUREMENT
VALUE
ADJUSTMENT
POINT
UNIT
LOCATION UNIT ADJUST
OUTPUT
POWER
1
• Displayed frequency:
145.00
MHz
•Output power
:
HIGH
• Simplex
• Transmitting
Top
panel
Connect
the
RF
power meter
to
the
antenna
connector.
5.0
W
10
R5
2
•
Output
power
:
LOW
1
0.25~1.0
W
Verify
1
• Output
power
:
LOW
2
Approx.
1.5
W
Verify
1
•
Output
power
:
LOW
3
Approx. 3.5
W
Verify
FREQUENCY
DEVIATION
1
• Displayed frequency:
145.00
MHz
• Output
power
:
HIGH
• Apply an
AF
signal to
the [MIC]
jack.
75
mV/1 kHz
(except U.S.A.)
170 mV/1 kHz
(U.S.A.)
• Set the
FM
deviation meter.
HPF
:
50 Hz
LPF
:
20 kHz
De-emphasis:
OFF
Detector
:
(P-P)/2
• Transmitting
Top
panel
Connect
the
FM
deviation
meter
to
the antenna
connector
via
the
attenuator.
±4.8 kHz MIC R13
DTMF TONE
FREQUENCY
DEVIATION
1
•
Displayed frequency:
145.00
MHz
•
Push and
hold the [PTT] switch
and
then
push
the
[D] key.
Top
panel
Connect the
deviation
meter
to
the
antenna
connector
via the
attenuator.
±3.5 kHz
LOGIC R16
TONE CALL
FREQUENCY
DEVIATION
{IC-2SET
only)
1
• Displayed frequency: 145.00
MHz
•
Push and
hold the
[LIGHT] switch
and then push
the [PTT] switch.
Top
panel
Connect
the
deviation
meter
to
the
antenna
connector
via the
attenuator.
±3.5 kHz
LOGIC R15
6
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4