Product Details
With traditional technology, a micro receiver has lower sensitivity (control distance) than a full-sized receiver. HDX Digital receivers use a state-of-the-art receiver chip, careful filtration, and DSP technology to achieve full-range while remaining small and lightweight. With this combination, the HDX Digital receivers have capabilities usually only found in older technology receivers weighing several dozen grams. Because of their light weight, the HDX Digital receivers can be used in many applications including indoor electric aircraft, 3D fixed-wing airplanes, and outdoor glow planes of several kilograms or pounds. With a sensitivity of better than 2µV, the HDX Digital receivers have a full range. These receivers use dual tuned RF circuitry with dual ceramic IF filters which ensure an ultra narrow selectivity to more effectively reject adjacent channel interference. This is especially important when flying high traffic areas where many transmitters may be operating near each other.
HD620 is the lightest (only 8.8g) 6-channel, full range, and ultra narrowband Dual Conversion receiver. Decoded by the onboard microprocessor, the resolution reaches 1024 in order to adapt to the digital servo and accurate servo. Like the DSP that all HDX Digital receiver uses, it rejects the glitch strictly. Compared with Single Conversion receiver, Dual Conversion receiver can reject 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), HD620 can reject it more effectively. Inheriting HDX's consistent style (small and light), both the size and weight of HD620 is the smallest. You can install it on Micro 3D CCPM helicopter or 3D fix-wing airplane in an easier way, and use it on small size, high speed and high-performance occasions. It can also be installed in the small size occasion, such as the indoor Micro Electric Aircraft, park fliers, etc. Of course, the full range and full performance of HD620 can be used in the occasion when long range is needed, such as the glider and large-scale glow plane. In addition, HD620 can deal with the busy flight situation, and guarantee the safety of the fly.
Note: Channels may be reversed due to label sticker being reversed. If receiver seems to not work properly, try the opposite channel - i.e. Ch #6 is Ch. #1, Ch #5 is Ch #2, and so on.
Specifications:
| Size |
1.4”x0.7”x0.3”(35x19.5x7.8mm) |
| Weight |
0.27oz/7.7g(with shrink wrap) |
| 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) |
| Modulate |
FM/PPM(pulse position modulation) |
| Case |
Shrink wrap |
| Operating Voltage |
4.8V~6.0VDC |
| Operating Current |
11mA |
Works with Hitec crystals
