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LV
PLL lock voltage
check point
C133
PLL lock voltage
adjustment for TX
C134
PLL lock voltage
adjustment for RX
DC power supply
13.2 V / 15 A
5 - 4
5-2 PLL ADJUSTMENT
PLL LOCK
VOLTAGE
1
2
3
4
• Operating freq. : 400.000 MHz
A
440.000 MHz
B
• Receiving
• Output power
: Low1
• Transmitting
• Operating freq. : 430.000 MHz
A
490.000 MHz
B
• Receiving
• Output power
: Low1
• Transmitting
MAIN Connect a digital multi-
meter or an oscillo-
scope to the check
point, “LV”.
1.0 V
1.1 V
3.3–4.5 V
3.3–4.5 V
MAIN
C133
C134
Verify
ADJUSTMENT
ADJUSTMENT CONDITIONS
UNIT
LOCATION
VALUE
UNIT
ADJUST
MEASUREMENT
ADJUSTMENT
A
: 400–430 MHz version for [F210], [F211]
B
: 440–490 MHz version for [F210], [F211], [F221]