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