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Page Title:
CRS SECOND MIXER A3300 AND CRYSTAL SWITCH A2000. |
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|  TM 11-5820-401-34-3/0967-LP-432-3060
1-17.
CRS SECOND MIXER A3300 AND CRYSTAL SWITCH A2000.
5.60 OR 5.65
MHz TO PHASE
DISCRIMINATOR
EL4GQ192
SECOND MIXER
The second mixer performs a signal heterodyning function, mixing the output of the 53-MHz filter with
a frequency from the interpolation oscillator.
Within the mixer module is a tuned tank circuit which couples the mixer's output to the first and second
IF Amplifiers A3400. The tank circuit is tuned to resonate at 5.625 MHz, so that frequencies near
5.625 MHz are coupled while frequencies below and above the tank's half-power points are severely
attenuated.
1-11
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