Light weight, mini size 2.4G receiver from Corona.

*Note: Like all other 2.4G brands products, Corona receivers can only work/bind with the Corona RF modules.
Make sure you use Corona RF module before you buy this receiver.

Type: CR8D 8ch
Size: 38/42L (without pin/with pins) x 22W x 12.5H mm

*Note: This receiver is only compatible with Corona V2 RF modules CT8F/CT8J, and is not compatible with the old Corona RF modules

Size: 46*18*8mm
Weight: 4.5g
Control Distance: 300~800m
Work for ASSAN X8 Series

Specification
* Size: 36x18.7x8.2mm
* Weight: 9.2g
* Distance: >1.5Km
* Sensitivity: +/-8kHz at 65dBdown
* Channels: 1-8
* Filtering: DSP
* Intermediate Frequency: 10.7Mhz
* IP3: +10dBm

Features
* You can switch the frequency freely with the RP8D1 8 CH dual conversion synthesized receiver.
* The 'one button’ function makes it extremely easy to change frequency.
* Despite the small size, the receiving range reaches as far as 1 mile!
* The dual ceramic IF filters ensure ultra narrow selectivity, and can reject adjacent channel interference effectively.
* The RP8D1 can identify the shift polarity of the transmitter (FUTABA, JR) automatically.
* DSP technology filters noise intelligently and eliminates glitches effectively.
* Failsafe functions to put servos in a predetermined position in case of lost signal reception.

Features:
The smallest synthesized receiver in the R/c world Corona RP4SI, 4ch single conversion synthesized receiver.

1. 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.
2. 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.
II. Lightest and Smallest Synthesized Receiver
RP4S1 uses a state-of-the art receiver chip, and become world's smallest and lightest synthesized receiver.
Synthesized receiver should be larger than the receiver uses crystal. But Corona's technology makes it possible to manufacture a synthesized receiver with light weight. Including the antenna and the packaging, it weighs less than 5g.
III. Long Range
While using the powerful chip, corona designs more and distributes the plus of all levels carefully.
The range of PR4S1 is longer than RS410, RS610 and RS810 series. With a sensitivity of better than 2μV, the receiver range can reach as far as 1 mile on the ground even better.
IV. Ultra Narrow
Usually R/C equipments are used under a busy RF environment, so the band of the receiver must be very narrow. Only one way can ensure the narrow bandusing the expensive multiple ceramic IF filter. Corona promises that all receivers use 4 pole ceramic IF filter and make sure all the receivers have an ultra narrow band.
V. AGC and High IP3 Performance
RP4S1 was designed with a more reasonable and scientific way. It adds an AGC circuit to make itself have a higher IP3. With this technology, it can reject adjacent interference and high frequency block effectively.
VI Auto-detecting
Same with all Corona receivers, RP4S1 auto-detects the shift type (positive or negative) and is compatible with most brand transmitters.
VII. DSP
Nowadays, DSP decoding technology is used by all top grade receivers. Based on the experience of the manufacturing crystal receiver, the arithmetic is more advanced and it works more reliable.
You can hardly notice the glitch of the FM receiver and have no noise problem.
VIII “1-button” Frequency Tune
The frequency can be changed easily with PPL technology. Corona uses this tune button to compensate the frequency difference caused by production tolerance of the transmitter and the frequency wrap of difference brand transmitter. Only 1-button, RP4S1 makes it possible to compensate the frequency tolerance immediately.

Specifications
Synthesized Receiver (single conversion)
Type: RP4S1
Size: 42.5x18.2x9.36mm
Weight: 6.6g
Sensitivity: better than 2.0μv
Selectivity: ±8 kHz at 65 dBdown
Number of Channel: 1-4
Filtering: Dual turned RF circuitry
Filtering: Dual 4 pole ceramic filter
Filtering: DSP filtering with mild algorithm
Shift Polarity: Positive or Negative(auto-detect)
Case: Shrink wrap
operating voltage: 4.8V～6.0VDC
operating current: 17mA
Modulate: FM/PPM
Range: >1.2km/3900ft
Filtering: DSP
Crystal size: UM-5
Intermediate Frequency: 455KHZ
IP3: +9dBm

Features:
CORONA never stops improving the receiving range. RS610II has improved the receiving range as far as 1.5Km (checking range on ground). If we use traditional technology, how big the receiver should be made to reach such a far receiving range?
Further remote control distance means more reliable control. Even the reliability can compare beauty with PCM receiver. PCM receiver has good reliability because it uses CRC code to fill up the wrong codes which leading by shortage of receiving range. The signal will always seem to be fine ostensibly, but CRC code of PCM began to fill up “bad data cavity” which happens at times while exceeding half of the distance described by manufacturer. PCM code wastes a lot of time to receive more data to fill up the cavity of “bad data”. So usually we feel that PCM receiver has no glitch, while its response speed is less than PPM receiver.

We make control distance be further so that receiver can locate in stable RF Electromagnetic Field, it will make the reliability of Corona receiver approach to PCM receiver. Meanwhile, its response speed will not be influenced.
With improved circuit design, RS610II advances IP3 performance apparently, and it can even compare beauty with all famous brand receivers around the world. IP3 performance of a receiver is vital for serried R/C transmitters working at the same place. A receiver with lower IP3 will still working fine when 1-2 transmitter with adjacent channel working in the same time, but once open the third adjacent channel transmitter, the receiver will lose control immediately if it has poor IP3 performance.
The light weight and small size of RS610II predominate in other receivers. Furthermore, we have moved the crystals of RS610II to side face, which really improves the reliability of replacing crystals.
We have also improved DSP. It can make more strictly filter about received signals and eliminate glitch efficiently.
You can put RS610II receiver in any place when you install it on whatever electric puddle-plane, 3D plane, glider or training plane. And don't worry the trouble which will be brought by changing CG.
RS610II receiver has the structure of level inserted pin by special design and assorted with super thin electronic parts. The thickness of RS610II receiver is only 7.2mm which make the installation more convenient.
Reliability, high performance and sale price, they are what CORONA can provide for you.

Specifications
Size: 36*18.7*8.2mm
Weight: 6.8g
Sensitivity: about 2.0μV
Selectivity: ±8kHz at 65dB down
Number of channels: 1-6
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)
Case: Shrink wrap
Operating Voltage: 4.8V~6.0VDC
Operating Current: 11mA
Modulate: FM/PPM(pulse position modulation)

Requires:
1x mini size receiver crystal

Features
RD620II receiver – a small and light receiver with high‐performance using the latest in receiver technology.
Sensitivity of DUAL Conversion Receiver
RS620II has improved the range as far as 1.8Km
This range is based on our test conditions. The actual result of a range check will be different depending on your local environment.
Dual Conversion receiver can eliminate mirror frequency interference efficiently. Further remote control distance means more reliable control. Even the reliability can compare beauty with PCM receiver. We make control distance be further so that receiver can locate in stable RF Electromagnetic Field, it will make the reliability of Corona receiver approach to PCM receiver. Meanwhile, its response speed will not be influenced.
Selectivity and Dual Ceramic IF filter
The RD620II uses dual tuned RF circuitry with dual ceramic IF filters. Compared to a single ceramic filter, it has a better steep flank which reduces group delay effectively and ensures that the receiver has ultra narrow selectivity to more effectively reject adjacent channel interference. This is especially important when flying indoor airplanes where many transmitters may be operating near each other.
IP3&AGC
With improved circuit design, RD620II advances IP3 performance apparently, and it can even compare beauty with all famous brand receivers around the world. Now RD620II can operate under more 3 adjacent channel transmitters.
DSP
Improved DSP algorithm, It can make more strictly filter about received signals and eliminate glitch efficiently.

RD620II receiver has the structure of level inserted pin by special design and assorted with super thin electronic parts. The thickness of RD620II receiver is only 7.2mm which make the installation more convenient.

Reliability, high performance and sale price, they are what CORONA can provide for you.

Specifications
Size: 1.1”x0.6”x0.3”(28x15x7.6mm)
Weight: 0.17oz/4.7g(with shrink wrap)
Sensitivity better than 2.0μV
Selectivity ±8kHz at 65dB down
Number of channels: 1‐6
Filtering Dual turned RF circuitry
Filtering Dual 4 pole ceramic filter
Filtering DSP filtering with mild algorithm
Modulate: FM/PPM
Shift polarity Positive or Negative (auto‐detect)
Case Shrink wrap
Operating Voltage: 4.8V~6.0VDC
Operating Current: 11mA.
Compatibility: SAWAN , HITEC ,JR , FUTABA & WFLY etc

Features:
You can switch the frequency freely with the RP6D1 6CH dual conversion synthesized receiver.
The 'one button' function makes it extremely easy to change frequency.
Despite the small size, the receiving range reaches as far as 1 mile (depending on environments)
The dual ceramic IF filters ensure ultra narrow selectivity, and can reject adjacent channel interference effectively.
The RP6D1 can identify the shift polarity of the transmitter (Futaba, JR) automatically.
DAP technology filters noise intelligently and eliminates glitches effectively.
Failsafe function to put servos in a predetermined position in case of lost signal reception.

Specifications
Synthesized Receiver (Dual conversion)
Type: RP6D1
Size: 28.5X15X7.4
Weight: 8.6g
Range: >1.5km/4900ft
Selectivity: ±8 kHz at 65 dBdown
Number of Channel: 1-6
Filtering: DSP
Intermediate Frequency: 10.7MHZ
IP3: +10dBm

Compatible with both Futaba & JR transmitters.

Specificatons:
(1)Type: FM
(2)Channels: 6
(3)Include BAT: 1.5*2A*4cell
(4)Demodulation type: frequency demodulation
(5)Intermediate frequency: 455KHZ
(6)Frequency: 72MHz/41MHz/40MHz/35MHz/36MHz/27MHz
(7)Weight: 12g / 0.42 oz
(8)Dimensions: 45*22*14 mm / 1.70*0.86*0.55 inch
(9)Current Drain: 11.5mA
(10)COLOR: ORANGE
(11)ANT Length: 100 cm / 39.40 inch
(12)Certificate: CE,FCC,RoHS

EPRX Good reception and high speed. Go on! It's your best choice!

Warning: When you prepare flight, have to open remote control power supply first, then mount receiver power supply. When you stop flying, have to break first to open receiver power supply, then close a remote control.