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4-2 ADJUSTMENTS ON THE PLL UNIT
ADJUSTMENT ITEM
TRANSCEIVER'S
CONDITION
OPERATION
MEASURE
POINT
ADJUST
POINT
VALUE
REFERENCE
FREQUENCY
SIGNAL
1 • Frequency: 14.10000 MHz
• Mode: USB
• Transmitting
• Connect a frequency counter to
J571.
J571
(Verify)
64.000000 MHz
(±300 Hz)
2 • Frequency: 14.10000 MHz
• Mode: USB
• Receiving
• Connect an RF voltmeter to J571.
J571
L551, L552
(Repeatedly)
Max. voltage
3
–
–10 dBm (±3 dB)
(Verify)
LOCK VOLTAGE
• Frequency: 14.10000 MHz
• Receiving
• Connect a voltmeter to CP221.
CP221
(Verify)
1.1–2.7 V
1ST LO LEVEL
(HF band)
1 • Frequency: 0.03 MHz
(1.8 MHz*)
• Receiving
• Connect an RF voltmeter to J501.
J501
(Verify)
+4.0 dBm
(±3 dB)
2 • Frequency: 4.00 MHz
(3.5625 MHz*)
• Receiving
3 • Frequency: 7.90 MHz
(7.10 MHz*)
• Receiving
4 • Frequency: 8.00 MHz
(7.10 MHz*)
• Receiving
5 • Frequency: 15.00 MHz
(14.35 MHz*)
• Receiving
6 • Frequency: 21.90 MHz
(21.45 MHz*)
• Receiving
7 • Frequency: 22.00 MHz
(21.45 MHz*)
• Receiving
8 • Frequency: 50.00 MHz
• Receiving
+2.0 dBm
(±3 dB)
9
†
• Frequency: 60.00 MHz
(50.1225 MHz*)
• Receiving
–1.0 dBm
(±3 dB)
2ND RX LO LEVEL (HF band)
• Frequency: 21.90 MHz
(21.45 MHz*)
• Receiving
• Connect an RF voltmeter to the J852.
J852
(Verify)
–8.0 dBm
(±3 dB)
1ST LO FILTER (VHF band)
• Frequency: 146.000 MHz
• Mode: USB
• Receiving
• Connect an RF voltmeter to the
J1171.
J1171
C1185,
C1187
(Repeatedly)
Max. voltage
1ST LO LEVEL
(VHF band)
1 • Frequency: 108.000 MHz
(144.000 MHz*)
• Mode: USB
• Receiving
• Connect an RF voltmeter to the
J1171.
J1171
(Verify)
–1.0 dBm
(±3 dB)
2 • Frequency: 144.000 MHz
• Mode: USB
• Receiving
3 • Frequency: 148.000 MHz
(146.000 MHz*)
• Mode: USB
• Receiving
4** • Frequency: 174.000 MHz
• Mode: USB
• Receiving
–8.0 dBm
(±3 dB)
2ND RX LO LEVEL
(VHF band)
• Frequency: 145.000 MHz
• Mode: USB
• Receiving
• Connect an RF voltmeter to the
J1701.
J1701
(Verify)
–8.0 dBm
(±3 dB)
4 - 2
*: For [TPE] and [KOR]. **; For only [USA], [CHN] and [EXP]