As a licensed Ham operator I must say that is a pretty darn good explanation of how the antennas work. Yes, if they are made correctly a parabola helps. It's important to understand that it (usually) only affects the backward radiating portion of the signal. The forward signal remains the same and the backwards signal is reflected forwards. To be sure, this would mean an increased in measured signal in front of the antenna. Typically there will be some power gain, especially if measured with an untuned power receiver. Unless it reflects a signal that is close to 180 degrees out of phase with the front facing part that translates to a higher power level and more range. It certainly can't hurt anyway. At 2.4 gHz a quarter wave director element would be just around one inch in length with the elements getting smaller as you go forward. Correspondingly, the reflector element should be longer than the radiating element and ~ 1 inch away. For a Yagi to work at it's best it should have the right element lengths relative to the radiator, or the antenna on the remote control. But again, it is unlikely to hurt your range and could help. By the way, the antenna on the mini remote is a folded dipole. It already squeezes the signal to go forward and backwards, and squeezing it more is probably not going to hurt, and it might help. And by the way, the FCC only cares about the signal strength being radiated by the antenna. You are free to manipulate that signal anyway you want to make it work better. Just remember, phasing matters. A lot. The reflected signal needs to be pretty close to in phase with the front. This is why hams typically don't use parabolics or Yagis unless they are very carefully tuned. Surprisingly, a lot of the increase in signal to noise ration that contributes to range is because the parabolic reflector also tends to block noise from behind. Get a Ham license and you can play around with more powerful remote controls.
Interesting. I have my general license, this is the first time I’m hearing I can modify for more power from my controller. I’ll look it up to read more about it. Thanks for the info! 73
I have been looking at these and found all the range examples on you tube to be very bla.. this is concise and straight to the point. You are by far my favourite drone content sir. Very well explained and simple to understand. Bravo!!
Love the schooling you gave on this video, especially the history of YagiUdo and that’s what I will call it from now on, giving both gentlemen the credit.
We looking for a real review, not a sales man who don’t care if works or not, I starterd vídeo thinking buy, now I will definitely don’t ! Don’t be foo
First of all, thanks for a really great video on the range extenders. It's a pleasure to listen to someone explain it and show some actual meter readings rather than just taking you for a long boring ride and telling you how far they got. I have been thinking for a long time about that those Yagi range extender antennas and wondering why we had to have a set of two with one for each frequency. I know that there are two wires going up to the antenna module and that there are two different size antennas in the module at the top. I just assumed that one of the antennas was for the higher frequency and one for the lower. I would think you'd be able to build a Yagi attachment with the higher frequency on one side and lower frequency on the other and not have to worry about setting the frequencies manually. I have an electronics background and so I see some inconsistency between what is said on the videos and what I know in my brain. I am an extra class ham and I build antennas for fun. I know that at these frequencies the cutting and placement of every element is critical. To resolve the conflict, I got the bloody things for my Air 2 and gave them a run. I have done some field strength testing and not found a worthy difference with or without the extenders. I also don’t see much of a directional tendency with just the stock antennas or with the extenders. Even with an extender installed, I can drive to near the end range and turn my back on the drone without loosing contact. If the antenna was directional, I would drop the majority of my signal and contact with the drone. There is no matching to the Yagi as the stock antenna must act as the driven element, and the remaining directional elements are all the same length and distance.. Don’t make sense. This is the only "Yagi" I have seen with all lengths and spacing the same. Plug the freq, into any Yagi design software on the web and you will see what I mean. The stock antennas are flat so they will have the typical null on the ends and I think that is what we are seeing on the meters. They appear to operate like a cell phone antenna. The Alientech antennas are the same shape as the stock but larger, perhaps by a couple of wavelengths. They work much better but cost a bunch and require modification to the controller that can be reversed. Thanks again for taking the time do dig into these issues. I look forward to your explaining my questions. Thanks again for all you do.
Guys are coming tomorrow to help me dredge my Mavic Mini off the bottom of the pond. It looks like about $50 for the Yagu Uda's and reflectors for the two transmitters. Are the Drone Valley products better tuned? I also learned that you ALWAYS put floatation on when flying over water, even if it turns over, it floats and can be recovered for replacement!
Dennis, the Yagi-Udas and the parabolics will help increase your signal with the quad but also be careful about flying too low over water. I did a clip a while back explaining that the VIO sensors on the bottom of the quads can get "confused" by reflective surfaces like snow or water and force the drone to take a nosedive if you get too low. I stay above 15' when flying over water to make sure I don't go swimming. Thanks for the post and we have plenty of both items in stock if you decide you want them. Rick
I did read/watch several articles on over water flight after mine sark.. I was flying through an arch over water under a bridge. Lost height perspective and the drone wentin the water. So much for video through arch /tunnel out to look at waterfall. Orange flotation fills going on the drone from. Adds to VLOS, keeps the drove out of the dirt and it will float, even if upside down should I get dunnb again.
The question now is: do the yagi-uda worsen the signal when the RC switches to the other frequency? AKA: can we mount a 5.8 tuned yagi-uda, and still use the remote in auto mode? Thanks!
I’ve been using the parabolics for quite sometime with my mavic mini. I just ordered the Yagi Yuda from you just because 😏. I’m a little like you I just like to tinker. Always like your videos Rick keep up the good work!
For all the people who keep asking for proof here it is. I screen recorded 2 flights last night exactly the same route in town. 3000ft each at 250ft altitude. I count 37 glitches without anything. With parabolic it glitched twice. You don’t need to fly 17 miles to prove they work. I find the Yagis work well too, although they are a lot less forgiving with controller orientation. Great channel Rick!
Thanks for this video Rick. Didn't know about the Yagi Uda extenders. I already bought the parabolic one from you and just ordered the YagiUda today. Can't wait to use them both on my Mavic2 Pro.
Loved the video, I have tried a couple yagi uda extenders but the 8x yagi uda from Miniformer US is the Best. They are also designed to work and fit perfectly with the parabolic reflector. I get amazing range (with spotters) but I have them mostly because I want a strong sign that doesn't cut in and out especially in urban areas where there is lots of wifi interference and trees that momentarily block the signal. Like I said the best set I've found is from Miniformer US, they have an additional reflector on their yagi uda to enhance their ability and also work with the parabolic reflector making the signal rock solid. Miniformer US also have a UA-cam video showing the nerdy stuff about signal gain. The yagi uda are more directional but when you're facing the drone for LOS it not a big deal. Some have gone 8000m before the signal drops off. Keep up the great videos, I love all the nerdy details too!
@@ronaldrt visual line of sight for the Mini lineup is only 500m max so you need someone else in a vehicle to follow the flight, maintaining visual line of sight and continuous communication with the pilot...me. I now have the M3P with the RC controller and have reached 7200m one way 14400m return using the standard battery landing back at my home position with 0% battery. Takeoff was at 910m elevation flying at an altitude of 50m to 120m max in normal mode. There are some that have reached 11000m (22000m return) with the M3P flying at at sea level.
One of the best videos I've ever seen on the subject so far. Right after I got my Mini back in January I bought the parabolic ones and they easily doubled my range. Wouldn't fly without them. Then back in June got some 8 rod Yagi's with the side extensions (made by Miniformer US who has his own channel) and they seem to work just a little better then the parabolic ones. I also prefer using the Yagi's because they have a much smaller footprint over my remote so they don't get in the way of my thumbs as much. I've tried using both together at the same time but if anything the Yagi's work better by themselves. Another thing I've noticed to help range is to manually pick your own channel.
Thanks, im from the UK so our drones have both 2.4GHz and 5GHz, that little lesson you just gave has cleared so much up for me, I have both Yagi Uda 2.4 and 5GHz and the parabolic, so before flight ive always checked to see what frequencies are the clearest, but quite a few people have said to me that its pointless using both Yagi Uda and parabolic, but ive always had a fantastic connection and thats on my mavic mini 1, when I had the mavic pro before all the silly laws changed, because its bigger I could fly that 1/2 mile plus, and still see it and that never dopped any connection, in my opinion it made it a lot safer, but hey, I dont make the laws, I just go ahead and follow them. But again a huge thanks for all that info you gave, its proven I was doing right.
It's been many years since I was involved in antenna design, but I noticed a couple things in your test. First, the angle of coverage between your two half power points is called beam width, which directly corresponds to antenna gain. An issue known as mutual coupling may exist here, where the transmitting and receiving antennas may be too close together. I don't know what the general rule is though. Polarization, so you have a vertically polarized signal from the DJI controller and your sniffer antenna is horizontal. Making microwave measurements can sometimes be difficult because of the short wavelength, reflections, wave cancellations, etc. That's why we call it PFM, right? BTW, who makes the measuring device you are using, all I have is an HP spectrum analyzer, kind of bulky. Jim
Engineer here also and was wondering the same thing emptech. There’s also too many variables when it comes to signal strength as demonstrated with the video when Rick’s pen got in the way and lowered the db count and that was just a foot away. If it’s too good to be true than it is. I’ve had a lot of success with my 4hawks and ITELITE mods but those aren’t perfect and they’re powered!
Yes, I was thinking along the same lines too. As I understand it, you are not meant to hold your controller flat on the Mavic Air 2 but rather hold it with the phone in front of you and then the two vertical phone supports act as vertically polarised Antennas. When this mini yagi(-uda!) is attached then you end up with a more directional but still vertically polarised antenna. However, I think the test is a little misleading because of this as the weakest signal would be coming out of the top of the controller before the extenders are attached. I think we would need to see the signal strength with the controller sitting upright for a true comparison. Having said all that, speaking as a radio ham, this was a fantastic explanation of how these things work and I'm sure there is still some benefit to them. However, if you don't plan to travel (a huge amount) beyond VLOS then I think the current DJI technology would not require any enhancements to maintain a strong signal anyway...
I purchased the parabolic boosters and the Yagi Uda last week from Drone Valley and have made 5 flighst with them both on and in 5.8 mode. They definitely allow you to go further. Before using them in my urban area, I would start to loose video feed at about 525 meters. But with the two sets of boosters on I’m now getting out too 730 meters so a good 200 meters further. I’m flying 5.8 in FCC mode.
@@cameltoeinspector6015 Actually, if you click on my picture, it takes you too my UA-cam page and you will soon figure out I’m from Canada. So your theory is way wrong! I’m not an employer, just a frustrated Spark owner, who wasn’t getting good range! And wanted too try these affordable options. Now my range is improved, but still not anywhere close to what DJI states.
The nice thing about directional antennas is they increase both the controller signal and range the drone signal can be received. The two antennas on the controller are powered in phase, so the signal is doubled going forward and backward. Assuming the antennas are an odd multiple 1/2 wavelength, the side to side signal cancels, resulting in a radiation pattern that looks like the infinity sign as seen from the top of the antennas. The antennas are taller than a typical 1/2 wave. A 5/8 wavelength reduced the radiation pattern top to bottom, as seen from the side, further increasing the signal. The parabola works for 2.4GHz and 5.8GHz, the Yagi Uda is only 5.8GHz.
Hi Rick. I have been quietly watching your videos from Canada since July. I joined the drone world with a Mavic Mini in mid July. Although not required I went ahead and got what we call the Small Basic Licence. I have learned so much from your videos and very grateful. I have been considering range extenders and you just help me to decide to make the purchase. I am also a Ham radio operator so have some understanding of signals. Love your explanation. Keep up the great work!
Awesome vlog the best explanation I've ever seen. Thank so much for sharing your knowledge. I use these adds ons on my Fimi 2020 not for distance but for consistency of signal. Never had a drop off. For a few dollars more means less chance of losing your drone. Stay safe
Glad you enjoyed it! I love exploring tech and these range extenders are really helpful. Stay tuned for more technical updates this week and some new product reviews as well. Rick
Thank you Professor. I have just ordered my Yagi Uda range extender for my MA2. Appreciate you taking the time to put this video up Rick. Best wishes from Largo, FL
greate video, thanks. But I have question: on 18:50 the different is only 0.7 dBm is like 30% or so if 3dBm doubles the signal strength? doesn't look huge at all for me.
I always look forward to your very informative and useful videos. BTW,confessing I break the law every single day driving over 35, 45, 55, etc mph in those speed zones.
Great video Rick! I liked how easily you managed to explain the principles between the two types of antennas, I campaigned the same for the Yagi/Uda name in the forum I follow. Speaking of range extenders from a CE standpoint using a Mini on 5.8 GHz (manual selection), I slightly prefer the parabolics as they are better looking, easier to handle and give a wider beam, they fall a bit shorter of the Y/U boosters reach but they go out (at least the Mini does) with a reassuring loss of video downlink, meanwhile the Y/U they go out with a more worrisome loss of connection. Basically with the parabolics you can back out the drone, with the Y/U you have to wait and hope to regain connection otherwise RTH would kick in. When I did these tests there was zero wind, had full battery, flown over mostly open ex-open-pit mine area. I even combined the two reflectors+Y/U but the improvement is negligible.
Great video, just got started flying drones, picked up a Mavic Air & was completely surprised of the Technology, just purchased an Mavic Air 2 & it's really "blown" me away! Interesting new world for me, very fun hobby to have, thanks for the insightful video, also ordered a yagi antenna, keep the great videos coming!
Interesting. I have been a Han Radio license holder since 1955 and never heard anyone use the word, “UDA” when discussing a yagi antenna. Learnt something new. 🤓
Dude wonderful Video Many thanks for all the Geeking out stuff you did I have a better understanding for all the above from this video alone. buying extenders now..
Thanks for the post and the kind words on the content. I still fly the Mavic Air and am still blown away at how amazing that drone was for the time (and still is today) I hope you have a great summer of flying! Be sure to stop back and sub the channel so you don't miss anything. Rick
@@Dronevalley Subbed, thank you for the reply. It's winter here in South Africa, good stable air for flying. Maybe an Air 3 in the bag soon. Just wondering if there is a 3S or 4 around the corner. Good deals up for grabs here on the 3, so something must be happening.
Excellent explanation! Yagi Uda antennas are now available for the 2.4 band. They are larger physically (double the wavelength so double the length of the individual elements). A search on Amazon for "2.4 Yagi booster for DJI" will list many. They're still not too bulky as they have fewer elements but should help increase the reliability of a 2.4 connection As a side note, I've seen several UA-cam "range tests" that claim the"Yagi boosters" weren't working. It was apparent that 5.8 Yagi's were being used on the 2.4 band! This is likely a common mistake causing a lot of the "they don't work" claims. It's important that users understand that the add-on Yagi antennas are specifically designed for use on only one of the two 2.4 & 5.8 GHz. The parabolic reflectors should be of benefit on both bands.
Funny thing that, how could you buy a product, go through the effort of making a video and not do a tiny bit of research on the proper type of antenna. It's not at all difficult. There's a ton of videos explaining tem.
Well thank you, I now know the real name of the yagi-uda's. Rather interesting and sad how it got shortened with no credit to uda. So you've taken care of my learning something new every day, and great videos too by the way. By the way, yagi-uda's are made for 2.4 ghz band.
Hello Sir and thank you for this video. I really enjoyed it and the information was excellent. I plan on getting a DJI Air 3 within a month from now. I like how you used both of the 2 different boosters together at once. I think the antennas on the air 3 are shorter than the ones that you have on your remote. Do you have parabolic boosters that will fit the antennas for the Air 3?
I may be wrong, Could someone tell me if am correct or not?. The antenna, that is a pair of single wire. the emmiting shape of a simple wire is a toroidal shape centered in the antenna. There is no double beam like an 8 shape centered in the wire. And the effect of the parabolic shape is reflect and create a constructive wave beam. And there is no dipole in this configuration, It may be a single Tx and a single Rx, or some MIMO tech in between. This is just a thought, great video, great explanation, great quality and production for the video. Keep it going
I wonder. The Yagi antennae helps in transmission, but not in reception. Correct? But can I assume that the parabolic kit would help to some degree receiving the signal from the drone? But how much would it help? Doesn't the communication have to go both ways to be of help? What am I missing?
Some very great and informative information for someone who didn't know the principles of how these antenna boosters work and how they differ. I do have a question though. Most of the Yagi and parabolic boosters have aluminum rods and aluminum deflectors but copper ones are available. Is there any advantage with copper over aluminum?
Hello, Does anyone make the Parabolic and the Yagi Uda for the Mavic 3 CINE w/ RC Pro Controller? I don't see that combination of Drone and Controller listed anywhere that these signal enhancers are listed. They all seem to state Mavic 2 or Mavic 3 Mini. Thank you very much.
I used to tune whip antennae with an oscilloscope about 30 feet away use a piece of wire wrapped on a stick. Just for max signal. Works easier than swr . object being to get heat down in the xmiter.
Hi Rick, thank you for the informative video. I am wondering why the Yagi-Uda antenna is only for 5.8 Ghz rather than the 2.4 Ghz considering that 2.4 has a longer range. If I am not mistaken, the 5.8 has a broader bandwidth (higher frequency) with a shorter range while 2.4 has a more narrow bandwidth with of course longer range. Maybe broader bandwidth is needed for higher quality video transmission? I am interested if you have tried or tested any of the Alientech products. As near as I can tell, they are "omni directional" antennas. Some amplified and some not. Why would I want to amplify a transmission when the receiving device is not amplified? It seems as though I could send instructions and possibly not receive a response. Just thoughts from an amateur! Thank you again!
@@tompaddlez The Yagi-Uda also has the 2.4 Ghz version. But they do have a different length on it's antenna. You can check it up. Just type "2.4 Ghz Mavic Mini Yagi Antenna".
I know this video is older but I was wondering which one to get if I'm trying to get a little bit more range ,the 2.4 or the 5.8, the RC link starts dropping before my video link on fpv Drone
Andy, I've done a few clips in the past where I did the actual testing with the parabolics and my data shows the opposite. About 1.5 on average with the Parabolic and 2X (or more) with the Yagi Uda. Either way, both of these work really well for focusing and increasing your signal strength. Thanks for the post! Rick
@@Dronevalley Thanks for replying Rick. So we both get improved signal strength so that's good. I should probably have added that my tests were done with the mighty Spark and were done in a RF quiet area many km away from any other possible WiFi sources. I hadn't tried the parabolics AND Yagi-Uda together so I'll try that too. Thanks for that tip.
I have to say that regardless of what your talking about, your really focused, never ever pause or say uhh or ya know and you explain principles perfectly clear. I've never seen anyone, anywhere on UA-cam or TV be as clear and on point as you! Your very impressive man. My only criticism is your a little bit paranoid about breaking the law. I'm retired Leo and I'm not really big on these laws that are governing drones. For me they go a bit far, very picky but I understand how dangerous they can be in many levels as nefarious people can use drones in a way that can be harmful to many people, and I understand the fact that they can get sucked into an engine on a plane if you're flying in an area where there's a lot of congestion in the air.
Mike, I really appreciate your comments and it's always great to hear that folks are enjoying the clips. I love tech and do my best to present the details behind how things work so you can better enjoy the product. Drones are a big hobby for me and I do what I can to pass along what I've learned. Stay tuned for more content this week and thanks again! Rick
Hi Rick, thanks for confirming and explaining that these signal boosters do work and how they work! Living in CE countries, these do improve the video feed and range since we are having lower transmission powered CE version compared to the much powerful transmission FCC version you are having especially with the Mini. Our Mini version is so much underpowered in terms of transmission power that flying in urban areas seems impossible, so this boosters do help. Thanks!
Hey Rick, Thanks for the explanation, I did purchase them from Amazon and I may not understand the science behind it, but I can say they definitely work for my MIni SE very well. I have a bunch of tall trees in my neighborhood and I was able to fly out way further than I could before.
I use ParaYagi Boosters (both yagiUDA and parabolic together) with my mavic mini. Increases my range by 40%. Most importantly it gives me nice smooth uninterrupted FPV throughout the flight.
Great video, thank you very much for the explanation and demonstration. Most appreciated. Can't wait for Yagi Uda to arrive, and I guess I'll be nabbing a parabolic as well.
Can we have both a 5.8Ghz and 2.4Ghz setup? So whenever the controller decides to switch we covered both? I believe 2.4Ghz is also longer in range? Thank you.
Would these work on fake antennas, if I was to put them on top or not? Thanks 👍like would they pick up the signal from inside the transmitter. Any help. Thanks again
Rick, if a Yagi is mounted atop the Mini and pointed toward the pilot ....... will it help get the signal from the drone Back to the pilot’s location? Just wondering 😄👋🏼😄
Just one small point - and understand I’m a great fan of you and Drone Valley. You say at 3:17 that the energy levels are much higher, but, you don’t explain that this is at a given distance down range. The devices don’t increase energy output at source. You had said that, but you appear to contradict yourself here. Your overall explanation of the wave theory is great and really helpful.
Thanks for the post and the antenna for the Mini 2 are located in the end of the phone holder when it's extended. We have a great Yagi Uda range extender that works for the Mini 2 as well as a bunch of other accessories on our website here - www.dronevalley.com/store/c34/Mini_2.html. We ship daily from NJ for free. Rick
I hope you get this in time. So i contact my drone techs. They told me my drone uses 2.4ghz. But video footage wise it uses 2.4 and 5.8/5g. So my question is. Should i purchase the 2.4 Yagi or 5.8. Fyi my drone doesn't switch back and fourth. It's full time 2.4ghz far as remote to drone. I have Ruko f11 Gim 2. I've not had issues but why not get a even better signal. So i purchase the mirror already. But i want to have the para Yagi effect. Please help 😢
Thanks for the post and you'll be fine using this Yagi-Uda extender. It works fine on it's own and can be used with the parabolic extender installed as well for an even stronger signal. It essentially "shapes" the transmission to send more of the actual signal downfield towards your drone and will increase the signal strength by about 25% on average. Thanks, Rick
Here's one thing, without getting into the legal details, if you were to, say, connect your drone controller to a directional, parabolic antenna fixed to a tall pole to amplify it's signal, would you be able to extend your drone's range even more? If yes, then how much of an extension are we talking about here?
Another rock solid review Rick. I often wondered about extenders/boosters. Now I know. I like the idea of having the signals not bouncing back towards me. Will pick one up for my MA2.
Question: you talk about sending, but a DJI drone is about bi-directional signals. I need to receive the signal from the drone as well... do the yagus also make receiving more sensitive?
Peace be upon you. I have a Mavic Pro Zoom Smart drone. I bought a signal booster for it. Does it need to be set from the remote control or does it work automatically?
Hi Rick... Would you be able to do a video on how the ans where the transmission is radiating from on the Mini 2/Mavic Air 2 controllers? Is the antenna at the black tips at the end that clamp your phone? Or are they in the 2 silver poles from the controller? I have parabolica coming for the Mini 2 Controller... Thanks in advance.. Erwin..
Thanks for the post. The Mini 2 / MA2 use the same controller configuration and the black section on the end of the phone holder is actually the antenna. There are a a pair of antenna in there and they radiate primarily from the flat side of the block facing away from you. The Yagi Uda signal boosters we offer on our website are custom made for this controller and work great. I haven't actually found any parabolic boosters that fit the Mini 2 and we are working on a design we may release in a few months. Be careful when shopping for these as a lot of sellers are selling the Mavic Mini boosters for the Mini 2 and the won't fit or work on the Mini 2.
Time for me to dig out the para's I've had for years without using. I too thought it wasn't going to help much. Then again I've never had any connection issues with the Mavic Pro. I think I bought them to get the dollar amount for free air freight.
So question about the Yagi 5.8gHz antenna you have for the Mavic it's the same as the Mini 2's controller... The controller broadcast is dual band... Will it mess up the transmission of the 2.4ghz if it switches over? Yes I realize the 2.4ghz has a longer transmission range but slower speed as to the 5.8gHz shirter transmission but faster speed... I've ordered 3 antennas for my Mini 2 Controller to try out... Both the Yagi 2.4ghz & 5.8gHz antennas & also the Parabolic Reflector. Have the 5.8gHz already just ordered the parabolic and 2.4ghz yagi... It's not so much bout having longer range cause stock it does that just fine flying line of sight.. But more for a stronger connection like you said in more congested areas for interference... I'd like to hear your thoughts or if you can do another Video on the controller being dual band and using the 2 different yagi antennas.. I know you could also just go manual and switch to either band pending on your area and distance you're flying etc..
Erwin, there are a few different styles of Yagi Uda boosters and I always go with the 5.8 gHz when I fly. No need to nail the frequency as the quad will select the cleanest one and will typically settle on 5.8. I do use both the Yagi Uda and the parabolics together as they compliment each other really well. I hope you ordered the range extenders from us :) If not, next time give is a try. Rick
@@Dronevalley Hey I will next time as I saw your video after I had already ordered mine.. Ended up getting both the 2.4 & 5.8gHz Yagi-Uda & the Parabolic Reflectors for my Mini 2.... Can't wait to get the Reflectors to try them out.. Thanks for your response..
1850 SkiFi movie? Found the parabolics worked and increased the wave bars,using on the Mavic Air. Hopefully the yagi-uda's will be equaly as good on my Air2.
As a licensed Ham operator I must say that is a pretty darn good explanation of how the antennas work. Yes, if they are made correctly a parabola helps. It's important to understand that it (usually) only affects the backward radiating portion of the signal. The forward signal remains the same and the backwards signal is reflected forwards. To be sure, this would mean an increased in measured signal in front of the antenna. Typically there will be some power gain, especially if measured with an untuned power receiver. Unless it reflects a signal that is close to 180 degrees out of phase with the front facing part that translates to a higher power level and more range. It certainly can't hurt anyway.
At 2.4 gHz a quarter wave director element would be just around one inch in length with the elements getting smaller as you go forward. Correspondingly, the reflector element should be longer than the radiating element and ~ 1 inch away. For a Yagi to work at it's best it should have the right element lengths relative to the radiator, or the antenna on the remote control. But again, it is unlikely to hurt your range and could help.
By the way, the antenna on the mini remote is a folded dipole. It already squeezes the signal to go forward and backwards, and squeezing it more is probably not going to hurt, and it might help. And by the way, the FCC only cares about the signal strength being radiated by the antenna. You are free to manipulate that signal anyway you want to make it work better.
Just remember, phasing matters. A lot. The reflected signal needs to be pretty close to in phase with the front. This is why hams typically don't use parabolics or Yagis unless they are very carefully tuned.
Surprisingly, a lot of the increase in signal to noise ration that contributes to range is because the parabolic reflector also tends to block noise from behind.
Get a Ham license and you can play around with more powerful remote controls.
I learned something new today!💯👍🏽 Thanks! I may even get a HAM license 🤔
Interesting. I have my general license, this is the first time I’m hearing I can modify for more power from my controller. I’ll look it up to read more about it. Thanks for the info! 73
How would this work? it is my understanding that the driven element would be shorter than the reflector?
I have been looking at these and found all the range examples on you tube to be very bla.. this is concise and straight to the point. You are by far my favourite drone content sir. Very well explained and simple to understand. Bravo!!
Love the schooling you gave on this video, especially the history of YagiUdo and that’s what I will call it from now on, giving both gentlemen the credit.
I might be a sucker, but I immediately ordered a set after watching this video. Awesome explanation
Same! Haha
He makes a great salesman
Which ones?
We looking for a real review, not a sales man who don’t care if works or not, I starterd vídeo thinking buy, now I will definitely don’t ! Don’t be foo
@@scottrobinson1564 drone valley
First of all, thanks for a really great video on the range extenders. It's a pleasure to listen to someone explain it and show some actual meter readings rather than just taking you for a long boring ride and telling you how far they got.
I have been thinking for a long time about that those Yagi range extender antennas and wondering why we had to have a set of two with one for each frequency. I know that there are two wires going up to the antenna module and that there are two different size antennas in the module at the top. I just assumed that one of the antennas was for the higher frequency and one for the lower. I would think you'd be able to build a Yagi attachment with the higher frequency on one side and lower frequency on the other and not have to worry about setting the frequencies manually. I have an electronics background and so I see some inconsistency between what is said on the videos and what I know in my brain. I am an extra class ham and I build antennas for fun. I know that at these frequencies the cutting and placement of every element is critical.
To resolve the conflict, I got the bloody things for my Air 2 and gave them a run.
I have done some field strength testing and not found a worthy difference with or without the extenders. I also don’t see much of a directional tendency with just the stock antennas or with the extenders. Even with an extender installed, I can drive to near the end range and turn my back on the drone without loosing contact. If the antenna was directional, I would drop the majority of my signal and contact with the drone.
There is no matching to the Yagi as the stock antenna must act as the driven element, and the remaining directional elements are all the same length and distance.. Don’t make sense. This is the only "Yagi" I have seen with all lengths and spacing the same. Plug the freq, into any Yagi design software on the web and you will see what I mean.
The stock antennas are flat so they will have the typical null on the ends and I think that is what we are seeing on the meters. They appear to operate like a cell phone antenna.
The Alientech antennas are the same shape as the stock but larger, perhaps by a couple of wavelengths. They work much better but cost a bunch and require modification to the controller that can be reversed.
Thanks again for taking the time do dig into these issues. I look forward to your explaining my questions. Thanks again for all you do.
Guys are coming tomorrow to help me dredge my Mavic Mini off the bottom of the pond. It looks like about $50 for the Yagu Uda's and reflectors for the two transmitters. Are the Drone Valley products better tuned? I also learned that you ALWAYS put floatation on when flying over water, even if it turns over, it floats and can be recovered for replacement!
Dennis, the Yagi-Udas and the parabolics will help increase your signal with the quad but also be careful about flying too low over water. I did a clip a while back explaining that the VIO sensors on the bottom of the quads can get "confused" by reflective surfaces like snow or water and force the drone to take a nosedive if you get too low. I stay above 15' when flying over water to make sure I don't go swimming. Thanks for the post and we have plenty of both items in stock if you decide you want them. Rick
I did read/watch several articles on over water flight after mine sark.. I was flying through an arch over water under a bridge. Lost height perspective and the drone wentin the water. So much for video through arch /tunnel out to look at waterfall. Orange flotation fills going on the drone from. Adds to VLOS, keeps the drove out of the dirt and it will float, even if upside down should I get dunnb again.
This is the best video I have found on the subject.. lots of great information and obviously very knowledgeable about the subject. Thanks.
The question now is: do the yagi-uda worsen the signal when the RC switches to the other frequency?
AKA: can we mount a 5.8 tuned yagi-uda, and still use the remote in auto mode?
Thanks!
Did you ever figure this out? Not sure what to have my settings at.
I’ve been using the parabolics for quite sometime with my mavic mini. I just ordered the Yagi Yuda from you just because 😏. I’m a little like you I just like to tinker. Always like your videos Rick keep up the good work!
How about with the DJI Smart Controller?
Thanks
How can the antennas be used on the DJI RC Pro? any recommendation ? and does it actually improve the signal strength?
For all the people who keep asking for proof here it is. I screen recorded 2 flights last night exactly the same route in town. 3000ft each at 250ft altitude. I count 37 glitches without anything. With parabolic it glitched twice. You don’t need to fly 17 miles to prove they work. I find the Yagis work well too, although they are a lot less forgiving with controller orientation. Great channel Rick!
Thanks for this video Rick. Didn't know about the Yagi Uda extenders. I already bought the parabolic one from you and just ordered the YagiUda today. Can't wait to use them both on my Mavic2 Pro.
Any update on your experience?
Loved the video, I have tried a couple yagi uda extenders but the 8x yagi uda from Miniformer US is the Best. They are also designed to work and fit perfectly with the parabolic reflector. I get amazing range (with spotters) but I have them mostly because I want a strong sign that doesn't cut in and out especially in urban areas where there is lots of wifi interference and trees that momentarily block the signal. Like I said the best set I've found is from Miniformer US, they have an additional reflector on their yagi uda to enhance their ability and also work with the parabolic reflector making the signal rock solid. Miniformer US also have a UA-cam video showing the nerdy stuff about signal gain. The yagi uda are more directional but when you're facing the drone for LOS it not a big deal. Some have gone 8000m before the signal drops off. Keep up the great videos, I love all the nerdy details too!
With spotters?
@@ronaldrt visual line of sight for the Mini lineup is only 500m max so you need someone else in a vehicle to follow the flight, maintaining visual line of sight and continuous communication with the pilot...me. I now have the M3P with the RC controller and have reached 7200m one way 14400m return using the standard battery landing back at my home position with 0% battery. Takeoff was at 910m elevation flying at an altitude of 50m to 120m max in normal mode. There are some that have reached 11000m (22000m return) with the M3P flying at at sea level.
Great explanation. I recently got my ham radio license and reminds me of the RF concepts discussed there.
One of the best videos I've ever seen on the subject so far. Right after I got my Mini back in January I bought the parabolic ones and they easily doubled my range. Wouldn't fly without them. Then back in June got some 8 rod Yagi's with the side extensions (made by Miniformer US who has his own channel) and they seem to work just a little better then the parabolic ones. I also prefer using the Yagi's because they have a much smaller footprint over my remote so they don't get in the way of my thumbs as much. I've tried using both together at the same time but if anything the Yagi's work better by themselves. Another thing I've noticed to help range is to manually pick your own channel.
Thanks, im from the UK so our drones have both 2.4GHz and 5GHz, that little lesson you just gave has cleared so much up for me, I have both Yagi Uda 2.4 and 5GHz and the parabolic, so before flight ive always checked to see what frequencies are the clearest, but quite a few people have said to me that its pointless using both Yagi Uda and parabolic, but ive always had a fantastic connection and thats on my mavic mini 1, when I had the mavic pro before all the silly laws changed, because its bigger I could fly that 1/2 mile plus, and still see it and that never dopped any connection, in my opinion it made it a lot safer, but hey, I dont make the laws, I just go ahead and follow them. But again a huge thanks for all that info you gave, its proven I was doing right.
It's been many years since I was involved in antenna design, but I noticed a couple things in your test. First, the angle of coverage between your two half power points is called beam width, which directly corresponds to antenna gain. An issue known as mutual coupling may exist here, where the transmitting and receiving antennas may be too close together. I don't know what the general rule is though. Polarization, so you have a vertically polarized signal from the DJI controller and your sniffer antenna is horizontal. Making microwave measurements can sometimes be difficult because of the short wavelength, reflections, wave cancellations, etc. That's why we call it PFM, right? BTW, who makes the measuring device you are using, all I have is an HP spectrum analyzer, kind of bulky.
Jim
Engineer here also and was wondering the same thing emptech. There’s also too many variables when it comes to signal strength as demonstrated with the video when Rick’s pen got in the way and lowered the db count and that was just a foot away. If it’s too good to be true than it is. I’ve had a lot of success with my 4hawks and ITELITE mods but those aren’t perfect and they’re powered!
Yes, I was thinking along the same lines too. As I understand it, you are not meant to hold your controller flat on the Mavic Air 2 but rather hold it with the phone in front of you and then the two vertical phone supports act as vertically polarised Antennas. When this mini yagi(-uda!) is attached then you end up with a more directional but still vertically polarised antenna. However, I think the test is a little misleading because of this as the weakest signal would be coming out of the top of the controller before the extenders are attached. I think we would need to see the signal strength with the controller sitting upright for a true comparison.
Having said all that, speaking as a radio ham, this was a fantastic explanation of how these things work and I'm sure there is still some benefit to them. However, if you don't plan to travel (a huge amount) beyond VLOS then I think the current DJI technology would not require any enhancements to maintain a strong signal anyway...
I purchased the parabolic boosters and the Yagi Uda last week from Drone Valley and have made 5 flighst with them both on and in 5.8 mode. They definitely allow you to go further. Before using them in my urban area, I would start to loose video feed at about 525 meters. But with the two sets of boosters on I’m now getting out too 730 meters so a good 200 meters further. I’m flying 5.8 in FCC mode.
thank you Drone Valley Employee
@@cameltoeinspector6015 Actually, if you click on my picture, it takes you too my UA-cam page and you will soon figure out I’m from Canada.
So your theory is way wrong! I’m not an employer, just a frustrated Spark owner, who wasn’t getting good range! And wanted too try these affordable options. Now my range is improved, but still not anywhere close to what DJI states.
Tried it myself and it certainly does work. I was skeptical at first but I’m glad I bought it. Great addition to my DJI SE.
The nice thing about directional antennas is they increase both the controller signal and range the drone signal can be received.
The two antennas on the controller are powered in phase, so the signal is doubled going forward and backward. Assuming the antennas are an odd multiple 1/2 wavelength, the side to side signal cancels, resulting in a radiation pattern that looks like the infinity sign as seen from the top of the antennas. The antennas are taller than a typical 1/2 wave. A 5/8 wavelength reduced the radiation pattern top to bottom, as seen from the side, further increasing the signal.
The parabola works for 2.4GHz and 5.8GHz, the Yagi Uda is only 5.8GHz.
Can you use both of them at the same time
Hi Rick. I have been quietly watching your videos from Canada since July. I joined the drone world with a Mavic Mini in mid July. Although not required I went ahead and got what we call the Small Basic Licence. I have learned so much from your videos and very grateful. I have been considering range extenders and you just help me to decide to make the purchase. I am also a Ham radio operator so have some understanding of signals. Love your explanation. Keep up the great work!
Awesome vlog the best explanation I've ever seen. Thank so much for sharing your knowledge.
I use these adds ons on my Fimi 2020 not for distance but for consistency of signal. Never had a drop off.
For a few dollars more means less chance of losing your drone. Stay safe
I just ordered one , you sold me, thanks
Thanks for doing this test, and your explanation was extremely valuable. 👍
Glad you enjoyed it! I love exploring tech and these range extenders are really helpful. Stay tuned for more technical updates this week and some new product reviews as well. Rick
Thank you Professor. I have just ordered my Yagi Uda range extender for my MA2. Appreciate you taking the time to put this video up Rick. Best wishes from Largo, FL
Do they work
Ordered the Yagi Uda half way through your video lol thanks for not only testing them but giving us the ability to buy them from you directly.
greate video, thanks. But I have question: on 18:50 the different is only 0.7 dBm is like 30% or so if 3dBm doubles the signal strength? doesn't look huge at all for me.
I have done commercial drone jobs w/ and w/o Yagis. Yagis make a big difference in terms of feed reliability. I get less issues w/ them on than off.
Always good stuff from the Drone Whisperer, yes I need the Yagi-Uda
I always look forward to your very informative and useful videos. BTW,confessing I break the law every single day driving over 35, 45, 55, etc mph in those speed zones.
Great video Rick! I liked how easily you managed to explain the principles between the two types of antennas, I campaigned the same for the Yagi/Uda name in the forum I follow.
Speaking of range extenders from a CE standpoint using a Mini on 5.8 GHz (manual selection), I slightly prefer the parabolics as they are better looking, easier to handle and give a wider beam, they fall a bit shorter of the Y/U boosters reach but they go out (at least the Mini does) with a reassuring loss of video downlink, meanwhile the Y/U they go out with a more worrisome loss of connection.
Basically with the parabolics you can back out the drone, with the Y/U you have to wait and hope to regain connection otherwise RTH would kick in. When I did these tests there was zero wind, had full battery, flown over mostly open ex-open-pit mine area. I even combined the two reflectors+Y/U but the improvement is negligible.
Great video, just got started flying drones, picked up a Mavic Air & was completely surprised of the Technology, just purchased an Mavic Air 2 & it's really "blown" me away! Interesting new world for me, very fun hobby to have, thanks for the insightful video, also ordered a yagi antenna, keep the great videos coming!
Rick test and try strobe lights for night flying. Think ill like to try but would like to see what you think and is it worth it?
Interesting. I have been a Han Radio license holder since 1955 and never heard anyone use the word, “UDA” when discussing a yagi antenna. Learnt something new. 🤓
Dude wonderful Video Many thanks for all the Geeking out stuff you did I have a better understanding for all the above from this video alone. buying extenders now..
Love your enthusiasm and passion for your hobby. Together with your science you convinced me to pick one up for my Mavic Air.
Yes I still fly the 1 👌
Thanks for the post and the kind words on the content. I still fly the Mavic Air and am still blown away at how amazing that drone was for the time (and still is today) I hope you have a great summer of flying! Be sure to stop back and sub the channel so you don't miss anything. Rick
@@Dronevalley Subbed, thank you for the reply. It's winter here in South Africa, good stable air for flying.
Maybe an Air 3 in the bag soon. Just wondering if there is a 3S or 4 around the corner. Good deals up for grabs here on the 3, so something must be happening.
Excellent explanation! Yagi Uda antennas are now available for the 2.4 band. They are larger physically (double the wavelength so double the length of the individual elements). A search on Amazon for "2.4 Yagi booster for DJI" will list many. They're still not too bulky as they have fewer elements but should help increase the reliability of a 2.4 connection As a side note, I've seen several UA-cam "range tests" that claim the"Yagi boosters" weren't working. It was apparent that 5.8 Yagi's were being used on the 2.4 band! This is likely a common mistake causing a lot of the "they don't work" claims.
It's important that users understand that the add-on Yagi antennas are specifically designed for use on only one of the two 2.4 & 5.8 GHz. The parabolic reflectors should be of benefit on both bands.
Funny thing that, how could you buy a product, go through the effort of making a video and not do a tiny bit of research on the proper type of antenna. It's not at all difficult. There's a ton of videos explaining tem.
The signal is suitable for use on drones in Malaysia. The reason for the special design for Malaysia is CE. Not the FCC
Love the info and your channel thanks for continuing to post good information
Well thank you, I now know the real name of the yagi-uda's. Rather interesting and sad how it got shortened with no credit to uda. So you've taken care of my learning something new every day, and great videos too by the way. By the way, yagi-uda's are made for 2.4 ghz band.
the short bars are 5ghz (usually coupled with the parabolics online) and the long bars (much harder to find) are for 2.4ghz
Kudos to you for giving credit to Shintaro Uda in addition to Yagi.. Too often it doesn't happen.
Hello Sir and thank you for this video. I really enjoyed it and the information was excellent. I plan on getting a DJI Air 3 within a month from now. I like how you used both of the 2 different boosters together at once. I think the antennas on the air 3 are shorter than the ones that you have on your remote. Do you have parabolic boosters that will fit the antennas for the Air 3?
I may be wrong, Could someone tell me if am correct or not?. The antenna, that is a pair of single wire. the emmiting shape of a simple wire is a toroidal shape centered in the antenna. There is no double beam like an 8 shape centered in the wire. And the effect of the parabolic shape is reflect and create a constructive wave beam. And there is no dipole in this configuration, It may be a single Tx and a single Rx, or some MIMO tech in between.
This is just a thought, great video, great explanation, great quality and production for the video. Keep it going
I got both of these about a week ago for my Mavic Air and had no video drop out for a mile+...I use both at the same time.
A really excellent explanation of extenders. I really thank you. Just ordered both types from your web site.
I wonder.
The Yagi antennae helps in transmission, but not in reception. Correct?
But can I assume that the parabolic kit would help to some degree receiving the signal from the drone?
But how much would it help?
Doesn't the communication have to go both ways to be of help?
What am I missing?
can you and should you use both? better performance?
Rick…..again OUTSTANDING informative and fun….. Thank you
Great video. Now I need some yagi uda for my new mavic mini.
Just ordered both for mine thanks for the info
Some very great and informative information for someone who didn't know the principles of how these antenna boosters work and how they differ. I do have a question though. Most of the Yagi and parabolic boosters have aluminum rods and aluminum deflectors but copper ones are available. Is there any advantage with copper over aluminum?
Hello,
Does anyone make the Parabolic and the Yagi Uda for the Mavic 3 CINE w/ RC Pro Controller?
I don't see that combination of Drone and Controller listed anywhere that these signal enhancers are listed. They all seem to state Mavic 2 or Mavic 3 Mini.
Thank you very much.
Great video. I have both but never used the Yagi-Uda.
I used to tune whip antennae with an oscilloscope about 30 feet away use a piece of wire wrapped on a stick. Just for max signal. Works easier than swr . object being to get heat down in the xmiter.
Hi Rick, thank you for the informative video. I am wondering why the Yagi-Uda antenna is only for 5.8 Ghz rather than the 2.4 Ghz considering that 2.4 has a longer range. If I am not mistaken, the 5.8 has a broader bandwidth (higher frequency) with a shorter range while 2.4 has a more narrow bandwidth with of course longer range. Maybe broader bandwidth is needed for higher quality video transmission?
I am interested if you have tried or tested any of the Alientech products. As near as I can tell, they are "omni directional" antennas. Some amplified and some not. Why would I want to amplify a transmission when the receiving device is not amplified? It seems as though I could send instructions and possibly not receive a response. Just thoughts from an amateur! Thank you again!
can someone reply to this
@@tompaddlez The Yagi-Uda also has the 2.4 Ghz version. But they do have a different length on it's antenna. You can check it up. Just type "2.4 Ghz Mavic Mini Yagi Antenna".
Fantastic video with great expectation. Thanks a lot!
Great analysis. Got both these
I have a transmitter with an 8 inch long 2.4 ghz antenna. Do they make range extenders for my antenna?? Thanks.
I know this video is older but I was wondering which one to get if I'm trying to get a little bit more range ,the 2.4 or the 5.8, the RC link starts dropping before my video link on fpv Drone
Where was the RF meter test with the parabolic? In my tests I've found a x1.5 range improvement with the yagi-uda and x2.0 with the parabolics
Andy, I've done a few clips in the past where I did the actual testing with the parabolics and my data shows the opposite. About 1.5 on average with the Parabolic and 2X (or more) with the Yagi Uda. Either way, both of these work really well for focusing and increasing your signal strength. Thanks for the post! Rick
@@Dronevalley Thanks for replying Rick. So we both get improved signal strength so that's good. I should probably have added that my tests were done with the mighty Spark and were done in a RF quiet area many km away from any other possible WiFi sources. I hadn't tried the parabolics AND Yagi-Uda together so I'll try that too. Thanks for that tip.
I have to say that regardless of what your talking about, your really focused, never ever pause or say uhh or ya know and you explain principles perfectly clear. I've never seen anyone, anywhere on UA-cam or TV be as clear and on point as you! Your very impressive man. My only criticism is your a little bit paranoid about breaking the law. I'm retired Leo and I'm not really big on these laws that are governing drones. For me they go a bit far, very picky but I understand how dangerous they can be in many levels as nefarious people can use drones in a way that can be harmful to many people, and I understand the fact that they can get sucked into an engine on a plane if you're flying in an area where there's a lot of congestion in the air.
Mike, I really appreciate your comments and it's always great to hear that folks are enjoying the clips. I love tech and do my best to present the details behind how things work so you can better enjoy the product. Drones are a big hobby for me and I do what I can to pass along what I've learned. Stay tuned for more content this week and thanks again! Rick
I am kinda lost. If the meter is a field strength meter shouldn’t it read higher with the yagi antenna? That is, if it is not in the null.
One min in and already subbed. This guy is great!
He is very smart
Hi Rick, thanks for confirming and explaining that these signal boosters do work and how they work! Living in CE countries, these do improve the video feed and range since we are having lower transmission powered CE version compared to the much powerful transmission FCC version you are having especially with the Mini. Our Mini version is so much underpowered in terms of transmission power that flying in urban areas seems impossible, so this boosters do help. Thanks!
Hey Rick, Thanks for the explanation, I did purchase them from Amazon and I may not understand the science behind it, but I can say they definitely work for my MIni SE very well. I have a bunch of tall trees in my neighborhood and I was able to fly out way further than I could before.
Thank you. That was very informative and now I see the difference.
Glad it was helpful! They work really well and are backed by science that goes way back to the ancient Greeks.
All I need was answered in 35sec. Thanks
Great and informative video, you are fantastic at explaining things so we can all understand
I use ParaYagi Boosters (both yagiUDA and parabolic together) with my mavic mini. Increases my range by 40%. Most importantly it gives me nice smooth uninterrupted FPV throughout the flight.
Another great educational video....thank you. I just ordered a pair of the Yagi-Uda's for my Mavic Air 2.
Great explanation. Does the yagi uda also work for the received signal or can it only wave-shape the transmission
Hi Rick, any update on the parabolic antenna for the mini 2? Thanks
Great video, thank you very much for the explanation and demonstration. Most appreciated. Can't wait for Yagi Uda to arrive, and I guess I'll be nabbing a parabolic as well.
Very informative. Thanks for sharing your knowledge
When using the Yagi antenna should you switch your controller to 5.8 or go ahead and use it in dual band mode?
Did you ever figure this out?
Can we have both a 5.8Ghz and 2.4Ghz setup? So whenever the controller decides to switch we covered both? I believe 2.4Ghz is also longer in range? Thank you.
Does the Yagi-Uda antenna work with the original DJI Mavic Pro?
I'm not sure if it has 5.8 GHz transmission frequency.
Which way do you point the controller for the Air 2? Point the tip of the yagi at the drone or perpendicular?
Would these work on fake antennas, if I was to put them on top or not? Thanks 👍like would they pick up the signal from inside the transmitter. Any help. Thanks again
Rick, if a Yagi is mounted atop the Mini and pointed toward the pilot ....... will it help get the signal from the drone Back to the pilot’s location? Just wondering 😄👋🏼😄
Just one small point - and understand I’m a great fan of you and Drone Valley. You say at 3:17 that the energy levels are much higher, but, you don’t explain that this is at a given distance down range. The devices don’t increase energy output at source. You had said that, but you appear to contradict yourself here. Your overall explanation of the wave theory is great and really helpful.
does any know of a range externder for the mini 2? i dont see any antenna on the controller.
Thanks for the post and the antenna for the Mini 2 are located in the end of the phone holder when it's extended. We have a great Yagi Uda range extender that works for the Mini 2 as well as a bunch of other accessories on our website here - www.dronevalley.com/store/c34/Mini_2.html. We ship daily from NJ for free. Rick
@@Dronevalley cool, thanks
to bad you did not measure signal strength behind those extenders. How much it shields you from that signal ?
Great explanation!
What about signal boosters like the RAPTORs made by the Polish company 4HAWKS?
I hope you get this in time. So i contact my drone techs. They told me my drone uses 2.4ghz. But video footage wise it uses 2.4 and 5.8/5g. So my question is. Should i purchase the 2.4 Yagi or 5.8. Fyi my drone doesn't switch back and fourth. It's full time 2.4ghz far as remote to drone. I have Ruko f11 Gim 2. I've not had issues but why not get a even better signal. So i purchase the mirror already. But i want to have the para Yagi effect. Please help 😢
Thanks for the post and you'll be fine using this Yagi-Uda extender. It works fine on it's own and can be used with the parabolic extender installed as well for an even stronger signal. It essentially "shapes" the transmission to send more of the actual signal downfield towards your drone and will increase the signal strength by about 25% on average. Thanks, Rick
Here's one thing, without getting into the legal details, if you were to, say, connect your drone controller to a directional, parabolic antenna fixed to a tall pole to amplify it's signal, would you be able to extend your drone's range even more?
If yes, then how much of an extension are we talking about here?
Another rock solid review Rick. I often wondered about extenders/boosters. Now I know. I like the idea of having the signals not bouncing back towards me. Will pick one up for my MA2.
Question: you talk about sending, but a DJI drone is about bi-directional signals. I need to receive the signal from the drone as well... do the yagus also make receiving more sensitive?
What are you using to measure the frequency?
Peace be upon you. I have a Mavic Pro Zoom Smart drone. I bought a signal booster for it. Does it need to be set from the remote control or does it work automatically?
Great content, very informative, clear, and concise. Thank you!
Hi Rick... Would you be able to do a video on how the ans where the transmission is radiating from on the Mini 2/Mavic Air 2 controllers? Is the antenna at the black tips at the end that clamp your phone? Or are they in the 2 silver poles from the controller? I have parabolica coming for the Mini 2 Controller... Thanks in advance.. Erwin..
Thanks for the post. The Mini 2 / MA2 use the same controller configuration and the black section on the end of the phone holder is actually the antenna. There are a a pair of antenna in there and they radiate primarily from the flat side of the block facing away from you. The Yagi Uda signal boosters we offer on our website are custom made for this controller and work great. I haven't actually found any parabolic boosters that fit the Mini 2 and we are working on a design we may release in a few months. Be careful when shopping for these as a lot of sellers are selling the Mavic Mini boosters for the Mini 2 and the won't fit or work on the Mini 2.
Will these work on fimi x8 mini drone antennas that are on your site? I also need each type of antenna for my autel nano plus
Where can I find an RF meter like that one?
Time for me to dig out the para's I've had for years without using. I too thought it wasn't going to help much. Then again I've never had any connection issues with the Mavic Pro. I think I bought them to get the dollar amount for free air freight.
So question about the Yagi 5.8gHz antenna you have for the Mavic it's the same as the Mini 2's controller... The controller broadcast is dual band... Will it mess up the transmission of the 2.4ghz if it switches over? Yes I realize the 2.4ghz has a longer transmission range but slower speed as to the 5.8gHz shirter transmission but faster speed...
I've ordered 3 antennas for my Mini 2 Controller to try out... Both the Yagi 2.4ghz & 5.8gHz antennas & also the Parabolic Reflector. Have the 5.8gHz already just ordered the parabolic and 2.4ghz yagi... It's not so much bout having longer range cause stock it does that just fine flying line of sight.. But more for a stronger connection like you said in more congested areas for interference... I'd like to hear your thoughts or if you can do another Video on the controller being dual band and using the 2 different yagi antennas.. I know you could also just go manual and switch to either band pending on your area and distance you're flying etc..
Erwin, there are a few different styles of Yagi Uda boosters and I always go with the 5.8 gHz when I fly. No need to nail the frequency as the quad will select the cleanest one and will typically settle on 5.8. I do use both the Yagi Uda and the parabolics together as they compliment each other really well. I hope you ordered the range extenders from us :) If not, next time give is a try. Rick
@@Dronevalley
Hey I will next time as I saw your video after I had already ordered mine.. Ended up getting both the 2.4 & 5.8gHz Yagi-Uda & the Parabolic Reflectors for my Mini 2.... Can't wait to get the Reflectors to try them out.. Thanks for your response..
All your recommendation are for DJI drones, do the same products work with Autel drones? I assume they do but want to verify.
1850 SkiFi movie? Found the parabolics worked and increased the wave bars,using on the Mavic Air. Hopefully the yagi-uda's will be equaly as good on my Air2.
If I put BOTH types of antennes on my DJI mavic mini controller would the effect be twice as good?