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4 - 6
TRANSMITTER ADJUSTMENTS (continued)
TRANSMIT
GAIN
OUTPUT
POWER
CARRIER
SUPPRESSION
TUNE
POWER
POWER
METER
MIC
LIMITTER
MIC GAIN
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
2
1
2
3
1
1
1
2
1
1
2
• Display frequency : 12.2300 MHz
• Mode
: A1A
• Transmitting
• Display frequency : 16.3650 MHz
• Transmitting
• Display frequency : 12.2300 MHz
• Mode
: H3E
•
Apply no audio signal to the
[MICROPHONE] connector.
• Transmitting
• Mode
: R3E
• Transmitting
• Mode
: A1A
• Transmitting
• Display frequency : 12.2300 MHz
• Mode
: J3E
•
Apply no audio signal to the
[MICROPHONE] connector.
• Transmitting
• Display frequency : 12.2300 MHz
• Ground the lead of L108 (KEY line)
on the MAIN unit with a wire.
• Transmitting
• While pushing the [SQL] and [TX]
switches, turn power ON.
• Display frequency : 12.2300 MHz
• Mode
: J3E
• Connect an audio generator to the
[MICROPHONE] connector and set
as:
Frequency
: 1.5 kHz
Level
: 100 mV
• Set the transmit power:
[PO-1] (20 W
PEP
)
• Transmitting
• Display frequency : 12.2300 MHz
• Mode
: J3E
• Preset R81 on the LOGIC board to
the maximum clockwise position.
• Connect an audio generator to the
[MICROPHONE] connector and set
as:
Frequency
: 1.5 kHz
Level
: 150 mV
• Transmitting
• Display frequency : 12.2300 MHz
• Mode
: J3E
• Connect an audio generator to the
[MICROPHONE] connector and set
as:
Frequency
: 1.5 kHz
Level
: 10 mV
• Transmitting
• Set an AG as:
Frequency
: 1.5 kHz
Level
: 5 mV
• Transmitting
140 W
0.5 V
45 W
2.0 W
140 W
Minimum carrier level
(Less than –40 dB)
10 W
17 W
Push the [DIMMER]
switch.
1.5 V
PEP
400 mV
PEP
100 W
R184
R26
R211
R212
R184
R238
R205
Output
level
[DIMMER]
R91
R81
R883
Rear
Panel
MAIN
Rear
Panel
Rear
Panel
Rear
Panel
Rear
Panel
CTRL2
CTRL2
Rear
Panel
Connect an RF
power meter to the
[ANT] connector.
Connect a digital
multimeter to R159.
Connect an RF
power meter to the
[ANT] connector.
Connect a spectrum
analyzer or RF volt-
meter to the [ANT]
connector via an
attenuator.
Connect an RF
power meter to the
[ANT] connector.
Connect an RF
power meter to the
[ANT] connector.
Connect an oscillo-
scope to check point
CP2 (Refer at page
4-2).
Connect an oscillo-
scope to check point
CP2 (Refer at page
4-2).
Connect an RF
power meter to the
[ANT] connector.
MAIN
MAIN
MAIN
MAIN
Audio
genera-
tor
Font
Panel
LOGIC
LOGIC
MIAN