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4-6 MAIN UNIT ADJUSTMENT (continued)
ADJUSTMENT ADJUSTMENT CONDITION OPERATION
ADJUSTMENT
POINT
VALUE
AM CARRIER
POWER
1 • Frequency : 14.100 MHz
• Mode : AM
• MIC input : OFF
• Transmitting
1) Connect an RF Power meter to
[ANT1].
2) Adjust the TX output power.
R1255
30 W
Id-APC
-Preparation-
1 • Frequency : 54.000 MHz
• Mode : RTTY
• Transmitting
1) Connect CP1253 to GND.
2) Tu r n R1211 to max. clockwise, then
turn it to 90° position.
3) Disconnect the power cable from
the transceiver, and connect an DC
Ammeter (30 A) between the power
supply and transceiver.
–
–
-Adjustment- 2 1) Connect an RF Power meter (or
Dummy Load) to [ANT1].
2) Adjust the driving current.
R1211
(Clockwise
rotation)
23.5 A
3 • Disconnect CP1253 from the GND.
RX
SENSITIVITY
1 • Frequency : 14.150 MHz
• Mode : USB
• Receiving
1) Connect an SSG to [ANT1], and set
it as.
Frequency : 14.1515 MHz
Level : 0 dBµ
†
(107 dBm)
Modulation : None
2) Connect an AC Millivoltmeter to
[EXP-SP].
3) Adjust the sensitivity.
L3602
Max. audio
output level
IMAGE
RESPONSE
1 • Frequency : 14.150 MHz
• Mode : USB
• Receiving
1) Connect an SSG to J3701, and set
it as.
Frequency : 64.530 MHz
Level :
+50 dBµ
†
(–57 dBm)
Modulation : None
2) Connect an AC Millivoltmeter to
[EXP-SP].
3) Adjust the image response.
R3216, C3006
(Repeatedly)
Min. audio
output level
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
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