Transmitter Adjustment - Icom IC-24AT Service Manual

6-4
TRANSMITTER ADJUSTMENT
ADJUSTMENT
ADJUSTMENT
CONDITIONS
ADJUSTMENT
POINT
ADJUST
OUTPUT
POWER
1
•
Frequency
display:
435.00
MHz
(except
USA)
445.00
MHz
(USA)
• Transmitting
Top
panel
Connect
the
RF
power meter
to the
antenna
connector.
5.0
W
YGR
R3
2
•
Frequency
display:
146.00
MHz
(except
EUR, UK)
145.00
MHz
(EUR, UK)
•
Transmitting
5.0
W
R4
DEVIATION
1
•
Frequency
display:
435.00
MHz
(except
USA)
445.00
MHz
(USA)
•
Apply
an
AF
signal to
the (MIC]
jack,
95 mV/1 kHz
(except
USA)
210 mV/1 kHz (USA)
•
Set
the deviation meter.
HPF
:50Hz
LPF
:
20 kHz
De-emphasis
:
OFF
Detector
:
(P-P)/2
Top
panel
Connect
the
deviation
meter
to
the
antenna
connector
via the
attenuator.
4.8
kHz
MC
R15
2
•
Frequency
display:
146.00
MHz
(except
EUR, UK)
145.00
MHz
(EUR, UK)
4.8
kHz
R14
DTMF
DEVIATION
/EUR.ITA
\
USA,
AUS
VSEA
/
1
•
Frequency
display:
445.00
MHz
(USA)
435.00
MHz
(except
USA)
•
Push and
hold the
[D]
key
while
transmitting.
Top
panel
Connect
the
deviation
meter
to
the antenna
connector
via
the
attenuator.
±3.5
kHz
LOGIC R58
TONE
CALL
DEVIATION
(EUR, ITA)
1
•
Frequency
display:
435.00
MHz
•
Push and
hold the
[LAMP]
switch,
then
push (PTT]
switeh.
Top
panel
Connect
the
deviation
meter
to
the
antenna
connector
via the
attenuator.
±3.5
kHz
LOGIC
R60
6-4