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5-2 PLL ADJUSTMENT
PLL LOCK
VOLTAGE
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
2
3
4
• Operating frequency: (Ch 1)
155.00000 MHz [L-band]
174.00000 MHz [H-band]
• Transmitting
• Receiving
• Operating frequency: (Ch 2)
136.00000 MHz [L-band]
146.00000 MHz [H-band]
• Transmitting
• Receiving
MAIN
Connect a digital
multi-meter or oscil-
loscope to the
check point CP1.
3.5 V [L-band]
4.0 V [H-band]
2.6–3.6 V [L-band]
3.0–4.0 V [H-band]
1.2–2.2 V [L-band]
0.6–1.6 V [H-band]
1.2–2.2 V [L-band]
0.6–1.6 V [H-band]
MAIN
L14
Verify
CP1
PLL lock voltage
check point
L14
PLL lock voltage
adjustment
DC power supply
13.2 (13.6) V / 15 A