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LPF
PLL
IC
IC201
REF=500 kHz
HF 1st RX/TX LO
to the RF-A UNIT
VHF 1st RX/TX LO
to the RF-B UNIT
UHF 1st RX/TX LO
to the RF-B UNIT
HF 2nd RX LO
to the RF-A UNIT
VHF 2nd RX LO
to the RF-B UNIT
UHF 2nd RX LO
to the RF-B UNIT
3rd TX LO
to the MAIN UNIT
1.2 GHz band reference
to the optional UX-9100
X2
Q551
BPF
64 MHz
DDS
IC2002
DDS
IC351
A
BPF
AM P
IC1251
D2172
BUFF
Q27 1
X151
32 MHz
D/A
BPF
7.214 MHz
LP F
DDS
IC1502
B
D/A
BUFF
Q291
LPF
AMP
IC501
BUFF
Q151
D951
LPF
BUFF
Q57 1
BPF
BPF
10.814 MHz
BPF
D1872
AMP
Q201
BPF
AMP
IC1201
DDS
IC1051
B
BPF
7.705~11.305~11.405 MHz
BPF
HPF
AM P
IC701
BPF
10.914 MHz
AMP
IC1171
BPF
491 kHz
LPF
Q251
LPF
BPF
XTAL
64.491 MHz
FI981
D/A
LPF
BPF
BPF
DDS
IC702
A
BRF
FI401
BPF
491 kHz
BUFF
Q301
BUFF
Q1001
BUFF
Q701
BUFF
Q1501
BUFF
Q2001
BPF
XTAL
71.214MHz
FI1881
BPF
XTAL
71.705 MHz
BUFF
Q1851
LPF
LPF
AM P
IC1501
AM P
IC2001
BUFF
Q2151
BPF
AM P
Q901
AT T
IC1451
IC1452
IC1453
IC1454
IC1456
IC1455
ATT
BPF
HPF
MCL K
64.485-86.455 MHz
87.1875-102.1875 MHz
64.455 MHz
174.375-204.375 MHz
390 MHz
125.15(97.15)-163.15 MHz
86.455-124.455 MHz
30.2MHz
125.15-163.15 MHz
FI2181
PLL UNIT
1.2 GHz band 3rd RX LO
to the optional UX-9100
2nd TX LO
to the MAIN UNIT
3 - 9
• VHF BAND
The 1st RX/TX LO signal is passed through the LO SW
(IC1454) and BPF (L1101–L1105, C1103–C1113), and
then applied to the LO AMP (IC1171). The amplified
signal is passed through the LPF (L1172, L1173,
C1174–C1176) and HPF (L1174, C1177, C1178), and
then applied to the RF-B UNIT.
The 1st RX/TX LO signal is passed through the HPF
(RF-B UNIT; L1491, L1492, C1491–C1493), and
amplifi ed by the LO AMP (RF-B UNIT; Q1471), and then
applied to the 1st TX mixer (RF-B UNIT; Q1551, Q1552)
or 1st RX mixer (RF-B UNIT; Q1051–Q1054), through
the LPF (RF-B UNIT; L1451–L1453, C1451–C1455).
• UHF BAND
The 1st RX/TX LO signal is passed through the
LO SW (IC1455) and BPF (D1203, L1201–L1203,
C1203–C1210, C1216, C1219), and then applied to
the LO AMP (IC1201). The amplified signal is passed
through the BPF (L1233–L1236, C1233–C1240), and
then applied to another LO AMP (IC1251). The amplifi ed
signal is applied to the RF-B UNIT, through the HPF
(L1273, L1274, C1273–C1275) and LPF (L1275, L1276,
L1282, L1283, C1276–C1280, C1284–C1286).
The 1st RX/TX LO signal is passed through the BPF
(RF-B UNIT; D2582, D2583, L2582, L2583, C2583,
C2584, C2587, C2607, C2608), and amplified by the
LO AMP (RF-B UNIT; IC2582). The amplified signal is
passed through the BPF (RF-B UNIT; D2584, D2585,
L2585, L2586, C2594, C2595, C2598, C2609, C2610)
and HPF (RF-B UNIT; L2491, L2492, C2491–C2494),
and applied to another LO AMP (RF-B UNIT; Q2471).
The amplifi ed signal is applied to the 1st TX mixer (RF-
B UNIT; D2551) or 1st RX mixer (RF-B UNIT; Q2051,
Q2052), through the LPF (RF-B UNIT; L2451, L2452,
C2451–C2458) and HPF (RF-B UNIT; D2421, D2422,
L2411, L2412, L2421, L2422, C2411–C2415, C2422,
C2423).
• FREQUENCY SYNTHESIZER