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4-6
ADJUSTMENT
ADJUSTMENT ITEM
DISPLAY
SETTING CONDITION
OPERATION
MODULATION
SENSITIVITY
-Verification-
1
• Connect the modulation analyzer to
the antenna connector through the
attenuator and set it to:
HPF: OFF
LPF:
20 kHz or 15 kHz
De-emphasis: OFF
Detector:
(P−P)/2
• Connect the audio generator and
the AC millivoltmeter to [MIC]
through the JIG cable 1,and set it to:
Frequency:
1 kHz
Waveform:
Sine wave
Level:
Adjust to the
level so that the
modulation analyzer
shows ±1.50 kHz of
deviation
• Transmitting
10.0~20.0 mV
(Audio generator output level)
TRANSMIT S/N
RATIO
-Verification-
1
• Set the modulation analyzer to:
HPF:
50 Hz
LPF:
3 kHz
De-emphasis: ON
Detector:
(P−P)/2
• Set the audio generator output level
so that the modulation analyzer
shows ±1.50 kHz of deviation.
• Transmitting
• Toggle the audio generator output
ON and OFF.
More than 34 dB
4-2 TRANSMIT ADJUSTMENTS (CONTINUED)