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RD820 Dual Conv. 8CH Receiver 40Mhz

RD820 Dual Conv. 8CH Receiver 40Mhz

Discontinued Product

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Rating:
Stock:
OUT OF STOCK
Weight:
1 g
SKU:
RD820-40
Product
Description
RD820 is the lightest (only 9.5g) 8-channel, full range, and ultra narrowband Dual Conversion receiver. Decoded by the onboard microprocessor, the resolution reaches 1024 in order to adapt to the tightest dead band of the digital servo and accurate servo (usually 1ìs only). Compared with Single Conversion receiver, Dual Conversion receiver can reject the mirror frequency more effectively if they have the same components and use the same DSP algorithm. Thus, it gets more reliability. For adjacent channel interrupt (with the transmitters of channe50, 51, 52, 53 working together, and not far way form them), RD680 can reject it more effectively. According to the understanding the modern electronic industry of CORONA, the size and weight of RD820 are the smallest. Special design of the full range and full performance can let you install it on most of the 3D CCPM helicopters, 3D fix-wing plane, and park flyer easily, as well as the glider, the large-scale glow plane. In addition, RD820 can deal with the busy flight situation, and guarantee the safety of the fly.
See the RD 680 User Guide for more details.

Size 1.4”x0.85”x0.3?35x21.5x7.8mm)
Weight 0.29oz/8.4g(with shrink wrap)
Sensitivity about 2.0ìV
Selectivity ?kHz at 65dB down
Number of channels 1-8
Filtering Dual turned RF circuitry
Filtering Dual 4 element ceramic filter
Filtering DSP filtering in MCU with mild algorithm
Shift polarity positive or negative (auto-detect)
 Modulate  FM/PPM(pulse position modulation)
Case Shrink wrap
Operating Voltage 4.8V~6.0VDC
Operating Current 11mA
Product
Specifications

Additional Information

  • SKU:
    RD820-40
  • Brand:
    N/A
  • Weight(g)
    1.00
  • Length
    0.00
  • Width:
    0.00
  • Height:
    0.00
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I have just received two of these small receivers.

They are splendid, very light and seem of an excellent quality !

I miss only the cristals to use them.

UH, when will you have cristals in 40,685 MHz ???

The wire of antenna is very long: one meter !

The range and the sensitivity will be certainly good !

Thank you UH for your very good prices and your service quality !

Continue like that !

Patrick
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Very good high range receiver.
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verified_user Quality
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This tiny receiver merits five stars.

I tested it exstensively on an electric motor glider both in distance and altitude without any problem.

The only flaw is the narrow space within the servo pins when all the channel are used.
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verified_user Quality
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I'm very satisfatied about the receiver I bought because it 's small one and it works very well.I used it for hours and any radio disturbing was found.
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