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4.93 out of 5
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  • 28/10/2021

    Arrived quickly in a two weeks from China warehouse, very well packaged in bubble wrap and antistatic bag, just perfect.. Excellent quality little receiver, cleaned PCB and there's no soldering flux or acid, just ready to go, only 0.9g, antenna interface is (IPX4, IPEX4, MHF4), D8 protocol (FCC) with SBUS output, channels 1ch-8ch are controlled by the remote controller, channel 9ch is output for return RSSI telemetry (and it seems to work very good), fast and easy binding, tested it in range of about 500-600m without any breaks in connection, very stable and I believe it would get 1km with small modifications.. I'm little disappointed by the price now, but in these days everything is going to be more expensive than before!

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  • 01/12/2021

    R81 FrSky, easy to assemble, great value for money, unless you are looking for a "maze" or long range, it's really hard to send in failsafe. The perfect battle/test transmitter.

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  • 22/03/2022

    Product received in form and term offered. The dimensions are really small, a good property to be able to place it in almost any place of our drones. The receiver is temperature sensitive, so it is not a good option to place it near vtx or near esc. these being the hottest spots of our drones. •The points intended for welding communication cables are located on the periphery of the receiver and with a size and spacing between them, more than sufficient to perform a quality welding without having to be an expert in soldering with tin. iThe settings in Betafligth are the ones I show in the photos. Originally it has configured the aux5 for the quality of the Rssi. The most appropriate arrangement of the antennas, is 90° between them, in this way when one enters a zone of poor reception, its partner, is oriented in zone of maximum reception, achieving great stability of the Rssi link, providing maximum connection quality up to the limit of its range (predictable this, by the information of the % of the Rssi) iIn my case, with a radiolite 2. which according to manufacturer emits at approx 100mw. I have achieved distances well above the one that gives me the reception of the video, with 200mw of power of video signal. (always in clear environments) In any case, this product has solved my Rxloss and Failsafe problems, even passing behind structures or concrete constructions, the quality of the link is still more than sufficient. Highly recommended product, by size, layout, quality and price.

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  • 22/10/2021

    arrived in Greece quickly, about 6 days after the order. very small and light I have not tried it yet because I received it today but I will come back when it tries. the only downside was the packaging, it had no protection at all and may have crashed during transport.

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  • 30/08/2021

    good range over 1km with the R81 receiver that have Frsky D8 protocol, only 0.85g

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  • 30/07/2021

    Very small, lightweight, haven't tried it yet.

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  • 11/10/2021

    These are absolutely superb little D8 receivers. Rssi on channel 9. The range is advertised as 1Km and I have tried mine out to about 600M or so with no issues at all. I am confident it would get out to 1000M. These receivers do not need flashing with the latest protocol to get them to work with your transmitter, they just work every time with no issues. Binding is quick and easy. l have used quite a lot of these now and never been let down. For most small to medium sized whoops and drones these are more than capable !! Highly recommended.

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  • 30/06/2022

    Ordered January 30, received May 11. It took so long, I managed to cool down to the project he was buying for. I haven't checked...

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  • 01/08/2021

    quality is good. small form factor , double antenna for better reception. works well with t-lite transmitter.

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  • 24/02/2022

    The receiver arrived very quickly, until I checked, the packaging is excellent.

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