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
• 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 [ENT]
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
• Disconnect BFO plug (J5) on the
MAIN unit.
• 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
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.
70 mV
PEP
100 W
Rear
Panel
MAIN
Rear
Panel
Rear
Panel
Rear
Panel
Rear
Panel
MAIN
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
voltmeter 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
oscilloscope to R243.
Connect an RF
power meter to the
[ANT] connector.
MAIN
MAIN
MAIN
MAIN
Audio
generator
Font
Panel
LOGIC
LOGIC
R184
R26
R211
R212
R184
Adjust
alternately
R238,
R239
R205
Output
level
[DIMMER]
R2070
R2066