FPVTEC KAIJU LONG RANGE DJI FPV DRONE ANTENNA
Now this is a dual band patch antenna designed to be used with the dji fpv goggles version 2 and the dji fpv drone. Now this antenna is designed to give you the best possible performance from this system, and what were going to do in todays video is give you an overview of the antenna itself. Show you how to mount it on the goggles version 2 and then, at the end. Im going to give you my thoughts, having spent a bit of time with this now just to be clear up front fpv tech did send me this for free. However, they have not seen this video before i have published it, and they have had no input into the content. My thoughts on this are entirely my own, based on my own observations and testing anyway. Lets get on with it and lets take a closer look at the antenna. First of all, okay, so taking a closer look at the kaiju now this is a dual band: 2.4 and 5.8 gigahertz antenna designed to be used on the fpv goggles vision 2, when used with the dj fpv drone. Now, taking a look inside the box when you go inside the first thing, youll find is the patch antenna itself located in the center. We have two sma cables which allow us to actually connect to the antenna. Ports on the goggles version two – and there are a couple of thumb – screws located down here now, lifting the antenna out.
You will see on the front that it is made from injected molded plastic. You can see with fpv tech listed on the front and then flipping it over to the back. You will find a 3d printed goggles mount and that replaces the faceplate on the front of the goggles version: 2., the back plate which is made of metal, and you can see then weve got our antenna outputs here as well. Now because this antenna came to me directly from fpv tech, they have actually engraved it with my name along here, as well as the channel name down here as well. Now this isnt something thats special to me. They will do this for you as well. If you order the antenna directly from them now, this antenna is made in the usa fully designed in the usa and made by fpv tech themselves now just to give you some specifications on this. Its size is about 109 mil wide by a hundred mil tall or about seven and three quarter inches by four inches, and the antenna panel itself weighs 145 grams. Now you may think: well, this is quite a large antenna and it is, and the reason for that is to allow it to actually work on that 2.4 gigahertz band. Now, whilst there is no gain specs around this, this antenna has been tested in real world conditions. Up to 15.4 kilometers or 9.6 miles, so it can add a dramatic amount of improvement to the signal reception when using the fpv drone.
Now this is a patch antenna, which means it is a directional antenna and it has a vswr of two to one and because it is directional, it does have some field of view that you do need to be aware of, and that is how directive the antenna Itself is now it depends on what frequency were talking about are on this, so, for instance, in 5.8, gigahertz horizontally, it has a directivity of 55 degrees and in 2.4 gigs its 75 degrees, then vertically in 5.8, its 65 degrees and in 2.4 70 degrees. So because it is a directional patch antenna, you will need to make sure that you are pointing yourself towards the fpv drone at all times when using it now. The next thing im going to do is get this mounted on my goggles version 2. Take it out for a flight and then im going to give you some thoughts, having used it okay, so the next thing were going to do is get this mounted on the v2 goggles now, just something i want to mention on this – that this antenna is specifically Designed for the v2s, because this dual band sports, both the 2.4 and 5 gigahertz networks, whilst theres no reason you couldnt mount this on a set of v1s, whilst actually using it with the ear units on five gigs. Only this really is predominantly aimed at the dji fpv drone, which is using that dual band frequency anyway lets hop over to the overhead, and what were going to do now is first of all, were going to remove the face plate off the front of my existing Goggles now to do this, its pretty straightforward, weve just got two screws either side.
Now this faceplate is really thin metal. I dont understand actually why dji dont make this out of plastic because it dents and scratches so easily its crazy. It really is. I really do wish theyd actually made it out of plastic, and that way it would actually have been a little bit more resilient. So, as you can see its just a just a little metal plate now, the mounting of this antenna is fairly straightforward. In the sense, we simply need to mount it onto the front of the goggles like this and then put the little screws in on the sides, and it is going to be easier to actually use that, but they do supply these two thumb screws which do allow. You to do it that way as well, so what were going to do is put that, like that, then sort of give it a bit of a push down screw it in so rather than using the original screws. Youve got these ones with the nice big heads. If you were going to use the originals youre going to have to um, get yourself a um, an allen key in there, but they provide these two simply allow you to screw it on mount it in place like that. Next is, then. The antennas now were going to be mounting this on to the bottom two patches on this one, because that is where you get the best overall results. In my opinion, on the v2s um, what youve got is on the v2s youve got fixed antenna layout, so youve got if we look at it from the front here.
Youve got fixed rx on this side, xtx fixed rx, fixed tx, but the idea of actually putting one on each means that youre able to actually get the best of both worlds because remember um, your goggles are receiving the signal from the drone. But you are also transmitting the signal from the goggles back to the drone, which is used for the telemetry link as well. So you need to make sure that both signals are getting where they need to be now. What im going to just do now is just adjust these so cables, arent coiled over too much again, im gon na pop that one on, and that is fitment done. It really is that simple now you could rotate these up the other way. So if you wanted to, you could actually rotate it, but youre then putting a lot more bend in that coax the okay just to show you again, ive redone the alignment of the coax now so, instead of actually having it coming up off the bottom ive got It curled like that over and down on both sides, so its much tidier now theres not too much strain on it and its going into the antennas nicely like that: Music, okay, so im out about ive, got the antenna mounted on the goggles so its time to Give it a few flights and then ill, give you my opinion on what i think now at the moment, im flying legally in 25 milliwatts.
So the idea of this is to give me an idea of the base feel of how the system behaves with the new antenna on overall and what sort of extra performance from just overall rf point of view. We actually get Music, Music Applause, Music, okay, so its a few weeks later and ive been testing the kaiju from fpv tech, and i want to give you guys my thoughts now. I have to say this antenna does work and it does make quite a substantial difference, especially if youre in ce, like i am now im not going to give you guys range figures, im not going to tell you how far ive flown. But what i will say is this: this antenna will allow you to get to the power limit of your dji fpv drone. What i mean by that is, you will run out of battery before you run out of range now, just some interesting observations on this is ive also found. It somehow seems to have improved my rc link because, often when i was flying with the stock antennas on the v2 goggles on the fpv drone, i was getting the rc link play up before the goggles. However, with this both do seem to be improved, and i do wonder if theres, some behavior between the rc link and the goggles and the drone that we dont really know about and with an improved antenna on the goggles is improving the reception on the remote as Well, you know literally, the remote is stock.
Nothing has changed on that, but to me, the overall wireless range improved on both parts of the system while using this antenna now as for how it feels and fits when in use. Well, when its on your face as normal on your nose, you dont really feel it yes theres some extra weight there, however, its solid and theres no issues at all. We you will feel it, though, is when youve got it on your head like this, when youre standing still because of that extra weight, it does want to pull down. So if you are walking around with it, youre gon na notice compared to the original antennas its going to want to work its way down your face, so you might want to end up taking it off now. For me, its not a problem because im actually using my custom 3d printed battery, strap on the back, which holds the dji fpv battery on solid. It wont fall off and i can actually now do it. One handed as you can see there without any problems at all, and i dont have to worry about that battery, keeping jumping off the back of the strap. So if you are interested in that ill put a link to it in the bottom of this video anyway. So, to give you my thoughts overall, i have to say the kaiju does seem to make a big difference to me, especially in c in the overall signal integrity of the dji fpv drone.
The signal is stronger and clearer and actually a low to medium range. It looks absolutely fantastic, because youve got that stronger signal all of the time youre not entering that focus mode and youre, getting that more detailed image from the fpv system, wireless link than you will get when the signal starts to degrade. So not only does it give you more range, it gives you better overall image, quality at short to medium range, because youre not getting focus mode and things like that now, if youre interested in it, i will put a link to it in the description of this Video, i cant remember what it costs ill, put it up on the screen because im out and about um, but i do want to thank fpv tech for sending it over. They did send it to me for free, as ive said at the start. However, i have to say i am impressed if youre looking at something like this for use with the fpv drone and the ear units. Theres, no reason you cant use this with the dji fpv ear unit as well, its a 5 gig and 2.4 gig antenna. However, if you were only using e units, i would probably suggest checking out a dedicated five gig antenna, but if youre using it with both systems, then itll cover you that way as well anyway. Thats it for this one, as i said, ill put a link to it, big thanks to fpv tech.