Icom iV86 Service Manual Addendum page 64

4-2 TRANSMIT ADJUSTMENTS (CONTINUED)
ADJUSTMENT
MODULATION 1
SENSITIVITY
-Verification-
TRANSMIT S/N 1
RATIO
-Verification-
ADJUSTMENT ITEM
DISPLAY
• Connect the modulation analyzer to
• Connect the audio generator and
• Transmitting
• Set the modulation analyzer to:
• Set the audio generator output level
• Transmitting
• Toggle the audio generator output
SETTING CONDITION
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
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
HPF: 50 Hz
LPF: 3 kHz
De-emphasis: ON
Detector: (P−P)/2
so that the modulation analyzer
shows ±1.50 kHz of deviation.
ON and OFF.
4-6
OPERATION
10.0~20.0 mV
(Audio generator output level)
More than 34 dB