Review: Motive-RC R8SB FrSky-compatible D8 receiver
I see model review some d series, free sky receivers – now you know I'm, not happy with free sky. I'Ve already mentioned that in the past, but I do use free sky a lot of free sky stuff in the free sky. Dampv series protocols were really really good, as they were because well, free skies moved on they've, moved on to the X series, never moved on to exes and so they've left a lot of us behind, but here's a couple examples of what we used to get originally. There was the d8r – this was a really good receiver. Telemetry it had a couple of analog inputs on the side, had really good range and was just. I think these were just P W em they didn't have s bus or anything like that, but they were a good, solid, reliable receiver. I used a lot of these work really well. Then, of course, they came out with the version two series with the v2 s and the d2 s. This is a version two of the same thing it's the d8. I think it is oh no, anyway again analog inputs on the side and this one doesn't heaviest bus, either it's pretty old school. Then, of course we got other stuff. We'Ve got the deep. What is it D? Six, if it's also telemetry receiver, and eventually they started coming out with P ppm, outputs for flight controllers and finally, yes, bus now, what I'm doing today is none of those it's this.
This is the motive rc8 SB, and it is a two point. Four gigs eight channel d8 compatible receiver double y woohoo great. I wanted to get twice the kids as well diri jog here and, of course, it's made in China like everything in the world is today, but the reason why I decided to have a look at this is because I'm looking now that I got the jumper transmitter, I can probably win myself ride. Our free sky for future builds because the jumper has turned out to be an excellent transmitter which, as free sky, is compatible for my old free sky receivers, and now, with this third party, Frisco receivers, now frisked, I see it all. We'Re bringing access in because we don't want people being fooled by fake receivers. It don't provide the performance. Well, as I've said before, I can tell you: I've got a bunch of free sky recei. If you see a genuine Frisco receivers, they just do not perform 100 meters range from her from an X is four: are one of these things here? Several of these and they're just useless 100 meters, but useless, must with a bad bitch, but I don't get my money back it's, not gon na work. So if I can get away from free sky receivers now that I've got away from Frisco transmitters from a new builds, hey hope it should be good time. Look at this thing, let's see if it lives up to the hype.
Ok no surprises the instructions of photocopied. Actually, they're not bad instructions compared to the stuff that came with the original free sky stuff. It doesn't make any pretense to be a free sky product it's, not trying to masquerade it's, not a counterfeit it is it compatible and just a torture through linking specifications. What does it say, range above 1.2 kilometers? Well, you know I'd expect more than 1.2. Typically out of one of these D series receivers I'm quite easily able to get to kilometers sites. Hopefully this will do the equivalent of the real free sky D series and it's got output mode 1 mode 2 mode is cool, irrelevant yeah. There you go, shows you how to connect it up to a flight controller, to an F 7 flight control. That'S handy and remember, this does whoops. Let me put the yeah. This does have yes, bus and PWM. Now Peter ppm ppm is pretty last century, but PWM that's, the separate server, outputs, that's, useful and s. Bus is also very useful for flight controller week, P p.m. which is the serial sequence of channels at PWM. Speeds is kind of old school. This has had a bit of a squish in the mail, see that's. It got the thin sort of acetate case, the thin plastic case, not really gon na be physically designed like the old ones, except maybe these leaves were the same. These had that same kind of GP, plasticky thing I mean it's lightweight, it serves a purpose, stops the thing shorting out against something so yeah point holding you think against is it's, similar frsky.
In that regard, one thing tonight there is nothing to stop. You accidentally plugging your servos and one row of pins over and Fritzing them, so be very careful when you plug your servos and if you use the P W in outputs right even has mention of how to sit up, beat us a bit of fly. I mean hey that's, pretty good it's, a generation head of the old frsky ones. Then we move on yeah up here to mentions beautiful, ight Tyrannis. Yes, you get three pages of documentation: that's, not too bad I'm gon na check that out shortly and see if the documentation is accurate because of course, as we all know, sometimes it's not let's. Take a close up. Look at this baby. It is, as I say, it's got the little cheapy plastic KC thing, there's a little just a little failsafe button or light or something on the side I don't know I read, I read the instructions and then I'll be able to tell you gaily colored. Can it work, I say: girly brightly, colored connectors along the side, isn't it pretty and on this side tells you which is signal, which is power which you have to put your stuff micro. You UFL connectors on there so that's typical of this type of construction. I think I think we'll lift a skirt and have a look and see how well it's made shall we right so here's what we get inside this little beasty.
This is the area side of the board and looking at it, we can see. We'Ve got a front end chip here, which is quite normal little preamp and I think, also in tennis, witching and here's our power, if goodness, this is the chip that does all the two point four stuff and if I turn it over we've got the processor on The back there that then, takes all the stuff sorted out into digital streams and throws that out on these pins, so that looks pretty pretty stock standard. If we want to compare that to the free sky, in this case, the six channel receiver, you can see there's a lot more in the frieska receiving it. Admittedly there's nothing on the back of this one, but we do have extra chips in the RF stream. On the free sky, receiver, so let's take a little look at that we've got his their antennas. Here is our the same chip. I think as we've got there, but then we've got something else extra in here and and there is the RF goodness chip there. I think and there's our processor on the on the free sky, so that's the board chip that's on the bottom of this one that's, the equivalent functionality so there's a little bit more as a lot more pesos. All these are these capacitors and resistors a lot more passives in this one. Then there isn't that one – and I wonder if it's, just that these are people have taken a more advanced design or whether they're just changing us.
We will find out when we test it. Well, we will look at some range testing and some some flight testing and see how it works out. Interesting points to note, with the with the motive RC one is that the analog input will directly accept up to four cells. I think I'll look at the specs and that will tell me, but that means you don't – have to use one of those little resistive divider things that you have with the traditional frsky d series receive. You had to buy a little 3.00 resistor network, so you could plug it on cross your batteries, it's easier. Yet less you go to six cells. This is to analog to them to reports a 1 and a 2, a ones for the internal receiver battery voltage sensor, which is pretty useless because that's, driven by BIC and it's, always gon na be 5 volts emission battery spec and voltage sensor a 2 for external Battery which is a 0 to 30 volts or 1 to 6? Yes, so you can slip your light wave voltage straight into the analog port, and then your telemetry will tell you what your battery voltages and that's really the key thing on a lot of models, especially if you're flying line of sight. You just want to know when your batteries getting flat, so I hope this that's a nice feature, as I say, on the the other ones, you have to have an external resistive divider, and that was just extra money.
Extra complexity, extra cost something else to go wrong, but we go this. What you get inside, it let's put the scoot back on it. Stick it in the model: okay, yeah. This little plastic case is really creepy it's, so cheap I'd probably just wrap it and heat shrink, but we'll test it as it came because it doesn't get back together, very well, the plastic bins and tears and it's no it's pretty useless. Actually, the other thing too worth noting on this is that this will actually run from 13 volts. So if you got a three self pay, you can display this baby straight up to the the the lipo which is kind of good, but remember that that voltage will go through to your server. So if you're plugging servos in not a good idea. However, if you were just connecting it to a flight controller, you could run the whole thing without having to put it through a big most flight controllers, feed data back through the S bus connection to drive the receiver anyway, so 13 volt receiver capability in may. It may be useful some time, but I don't think it's really a particularly big selling feature. So there you go. The jury is in I've done range test. I'Ve range tester this against this Adi series, frsky receiver, a genuine Frisco D series and the range is identical on the low power sitting on the range test sitting. I got 50 paces with my jumper and I got 65 places with the Tyrannis and you might think whoa hang on the trennis has more range well, this is the low power range testing.
It may be that the low power level is lower on this than on that I don't know I haven't actually measured it. I willed it and do that in a future video just to make sure and also I'll be doing some in ear range testing and when the weather source itself makes it so windy at today that, with the model on the ground range testing, it got blown away By the wind was just sitting there and it was a no no tell on so it was just sitting right on the ground of the wind, blew it and tumbled several times, so it's really really windy, but yeah. The takeaway from all this is that this receiver, it seems to be every bit as good as a genuine frsky receiver, perhaps bitter we won't know until we get it in the ear and the other thing is I've noticed. I really do need to check now. I'Ve got sort of just anecdotally. I felt that I've had more range with the jumper, then with my Tyrannis, when I've been flying models and getting our SSI warnings, but that just depends on the setting of the RSI warnings and so forth so I'm going to do some genuine range tests. I'Ve got my long range set up I'm going to see how far I fly before the signal drop set on the T. 16 I'm gon na see how far I fly before the signal drops out on my original Tyrannis and on the QX 7 is so we'll see, which actually gives you most range in the yes for us to say both of them I'm gon na have more than Enough range for visual line of sight with this receiver or a genuine free sky but there's a future video coming up, I'll, compare power levels and module it's a little bit of technical looking behind the scenes.
Well, if the skirts on this and see what happens but as far as this receiver goes on the beach, it looks good range testing. It looks good. I haven't found any reasons not to like it. The price is good, certainly, I think they're all special. They were on a flash deal, they might even bond even still be on a flash deal if they gobble them up, because yep I'm gon na buy a whole lot more because I have a lot of models which I want. I want the convenience of being able to plug the servo straight to the receiver, not using a flight controller, a lot of the new receivers aren't. Yes, bus and it's fine if you're using a flight control, but I've still got a lot of fixed wing models that I want to fly manually. I want to fly them in the sky. I'Ve got you know them even the sub 250. I really like flying the little sub 250 without a flight controller in the way, because I don't need it I'm just doing local. You know proximity flying so it's. One thing I haven't checked: how much does it why the bulky little beast it could be, it could take us over the over the limit with the sub 250 bit chick I've, a feeling it's, probably gon na be about 4 grams. But my system, oceans of white, are terrible. So this put on scales that don't show the blood and we'll see what the reality is.
Yes, told your miles at 7 grams, certainly isn't light. It took the plastic coating off your covering off. You probably serve a gram or two you've been in the 5 or 6 grams. So hey you know, that's fine! If you wanted to save even more what or more weight you just shortened up the antennas a bit and then beer back that's, a momenta, wah, you'd, save another half or third of a gram or something that Rikki's 7 grams it's, not a lot of weight and They should really close to the close to the line with yes up to 50 build there you go, this is a recommended by it seems to work just fine and dandy. I will be doing follow ups though, and showing you, if there's any issues. Speaking of if there's any issues have had an issue with the skyzone h, what, as my skyzone eyelid, got the goggles? Yes, the DVR stopped working. It just keeps putting a release decode up when i try and record something's gone wrong, so I'll be pulling that apart. In having a look, if you want to see that video, let me know I'll make a video of pulling it apart. We'Ll see what the build quality is like it's, a bit disappointing when something that's so good has a problem, but hey it could just be a wire we'll find out anyway, thanks for watching recommended by there are links in the description. They are not my affiliate links there.
The links have to disclose banggood sent me this to review and I've done it. They sent me some links to put in the description up with those links, and I don't make a beam if you don't buy these. It won't hit me, but if you looking for an auto to free sky that uses the d8 protocol but damn good, pretty damn good.