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RECEIVER
SECOND MIXER
10.695 MHz
TO 455 kHz
IF
REFERENCE
2
OSCILLATOR
10.24 MHz
X3
NOTE:
1. 10 kHz Channel Spacing
2. Expandable to 165 Channels
(Expanded frequency range
shown in parenthesis)
V DD
RECEIVER
FIRST MIXER
LOCK DETECTOR
MC14568B
φ
8
64
D
PASS FILTER
N
10 kHz
.91–1.20 (2.55) MHz
N = 91–120 (255) MHz
N
MC14526B
TRX
OSCILLATOR
(TRASMIT ONLY)
RCV
10.695 MHz
26.965–27.255
(28.605) MHz
RF
AMP
16.270–16.560 (17.910) MHz
LOOP LOW
VCO
DOWN
MIXER
TO TRANSMITTER
26.965–27.255
MIXER
(28.605) MHz
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