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4-7 MAIN UNIT ADJUSTMENT (SCOPE CIRCUIT)
ADJUSTMENT
ADJUSTMENT CONDITION
OPERATION
ADJUSTMENT
POINT
VALUE
SCOPE
DISPLAY
1 • Frequency
: 14.200 MHz
(Main band)
• Mode
: CW
• [DUALWATCH] : "OFF"
• [P.AMP]
: "OFF"
• [ATT]
: "OFF"
• [SCOPE]
: "ON"
• [SCOPE ATT] : "OFF"
• [SPAN]
: "±25 kHz"
• Receiving
• Connect an SSG to [ANT1] and set
as;
Frequency
: 14.200 MHz
Modulation :
None
Level
: +54 dBµ
†
(–53 dBm)
L6032
→
L6037
→
L6041
→
L6023
→
L6028
→
C6076
(in sequence)
and
L6023, L6028,
C6076
(repeatedly)
Maximum
waveform
on the
SCOPE
screen
2
• Connect an SSG to
J6001
and set
as;
Frequency
: 71.715 MHz
Modulation :
None
Level
:
+100 dBµ
†
(–7 dBm)
C6076
Minimum
waveform
on the
SCOPE
screen
3
• Connect an SSG to [ANT1] and set
as;
Frequency
: 14.200 MHz
Modulation :
None
Level
: +54 dBµ
†
(–53 dBm)
L6023, L6028
(repeatedly)
Maximum
waveform
on the
SCOPE
screen
SCOPE GAIN
1 • Receiving
1) Connect an SSG to [ANT1] and set
as;
Frequency
: 14.200 MHz
Modulation :
None
Level
: +54 dBµ
†
(–53 dBm)
2) Adjust the waveform to set the peak of
the wave spectrum reaches the
6th
scale.
R6071
(See fi g.1)
SCOPE ATT
1 • [SCOPE ATT] : "30 dB"
• Receiving
1) Connect an SSG to [ANT1] and set
as;
Frequency
: 14.200 MHz
Modulation :
None
Level
: +54 dBµ
†
(–53 dBm)
2) Adjust the waveform to set the peak of
the wave spectrum reaches the
3rd
scale.
R6043
(See fi g.2)
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
J81
<fig. 1>
6th scale
<fig. 2>
3rd scale