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RX-31 Receiver Option
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The RX-31 is designed specifically as an RF interface between an impedance
bridge and the SD-31 Coherent Detector. Conveniently mounted in the
protective cover of the SD-31, the RX-31 is a single conversion super
heterodyne receiver which derives its local oscillator signal and
power supply voltage from the SD-31. Receiver circuitry is packaged
in an aperature-free, drawn aluminum enclosre which provides excellent
RF shielding, IF selectivity is provided by active bandpass filters
which limit receiver bandwidth to100 Hz.
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RF FILTER |
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Manually tuned in 3 bands:
0.1-0.3 MHz
0.3-0.8 MHz
0.8-2.0 MHz
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GAIN CONTROL |
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Manual with overload indicator.
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BRIDGE INPUT |
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100 KhZ-1.9995 mHz,
automatically set by SD-31. |
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