Synthesized
receiver gets rid of the inconvenience of using the crystal. Receivers with
crystal still use the technology of 1970’s which have to switch the frequency by
changing the crystal. Users have to bring dozens of crystal to flying field. In
addition, every changing of the crystal may damage the electron devices. While
it is only need to push the button, you can switch to any channel with
synthesized receiver.
Every transmitter and receiver has production tolerance inevitably. But the
production tolerance of the crystal affects it most. Even the most precise
crystal has the tolerance of 1‐2KHz, and sometimes it will be 4KHz. This is a
big tolerance to a 10KHz narrow receiver. Synthesized receiver will correct the
tolerance because it can automatically follow the frequency tolerance. It is
what will make R/C receiver has the best performance.
With Corona’s technology in manufacturing R/C products, RP4S1 4CH Single
conversion receiver becomes the smallest in the world. Do not only focus on its
small size. Its high‐performance will surprise you.
 Features -
Corona RP4S1 Synthesized
Receiver 4CH 72mHz (Single Conversion)
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Size: 42.5x18.2x9.36mm
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Weight: 6.6g
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Sensitivity: better than 2.0μv
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Selectivity: ±8 kHz at 65
dBdown
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Number of Channel: 1-4
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Filtering: Dual turned RF
circuitry
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Filtering: Dual 4 pole ceramic
filter
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Filtering: DSP filtering with
mild algorithm
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Shift Polarity: Positive or
Negative (auto-detect)
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Case: Shrink wrap
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Operating voltage: 4.8V～6.0VDC
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Operating current: 17mA
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Modulate: FM/PPM
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Range: >1.2km/3900ft
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Filtering: DSP
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Crystal size: UM-5
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Intermediate Frequency: 455KHZ
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IP3: +9dBm
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