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SECTION 2
50W, FILTER AND TERMINAL BOARDS
INAL board
amplifiers
Q2: 2SC3133)
al switches
2)
amplifiers
Q4: 2SC2904)
W board
• MAIN AND PLL UNITS
RF filter circuit
Noise blanker circuit
1st mixer circuit
1st IF amplifier
(Q8: 3SK131)
1st IF filter
(FL1: FL-120)
PLL IC
(IC5: LC7153M)
DDS IC
(IC1: SC-1246A)
PLL unit
INSIDE VIEWS
2 - 1
Low-pass filters
(FILTER board)
Power detector
circuit
ALARM board
MAIN unit
2nd mixer circuit
BFO DDS IC
(IC2: SC-1287)
Reference oscillator
30.000000 MHz
(X1: CR-282)
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