Uploaded July 2023 | Updated September 2026, 3 weeks ago
The audio is a bit off but it took too long to render so I don't want to do it again.
This is a park with what they call the "Big Field" in it and the field is about 600 meters end to end, 35 acres. The entire park itself is like over 300 acres but a lot of it places I don't want to go. The road that spans around the field takes you out to the main road so I had to rip the grass up instead. As I got close to the other side of the field I said screw it cause I was heating that motor up and building a grass birds nest inside the truck. I had to cut about 5 minutes of exploring out at the end cause I accidentally deleted the audio for it. This park is real close to NSCU and sort of part of the campus. It will always be somewhat populated no matter the time of day or night because of the dog park. Because people are wack I'm not sure I could roam this place too much without someone complaining to the cops about riling their dogs up.
I was scared to full throttle it because it was liable to hit some Dukes of Hazzard jumps but I did end up ramming into a curb and almost flipping the truck later. I had no idea how level that field is or how jacked up certain spots could be but I just kind of 80% throttled it and it worked out. Being that it's largely open space I can easily span the entirety of it because I would only be putting one building in the way anywhere I went. Such a layout is real ideal for the O3 on the ground but about the furthest point I went is where the 1.3g audio started to get fuzzy. There are some 'cyclocross' or something paths nearby this field I'm going to check out but other than that I guess not much going on but a big ass field and canine dinosaurs.
I wasn't sure what those guys were doing in the field but I saw the one guy out there placing markers that looked like whatever they had that was white. I later could see they were playing disc golf or something like that. They were probably mad that I might run over or drag their markers but thanks to the O3 I could actually see them and steer around them. At the time I was sort of just reflex driving around what I thought might have been trash. Now imagine using what they were doing as an example of how such an FPV system could be useful for more than just exploring. Technically with 3 more available servo channels I could add a basic robot arm that could swivel left and right, up and down, and then actuate a grabber that could pick up a disc or trash in general. 4 channels could make an arm that booms out or rotates etc. So instead of walking out and grabbing a disc, dropping a marker, then throwing/walking it back.. you just drive the car out there and do it.
The audio is a bit off but it took too long to render so I don't want to do it again.
This is a park with what they call the "Big Field" in it and the field is about 600 meters end to end, 35 acres. The entire park itself is like over 300 acres but a lot of it places I don't want to go. The road that spans around the field takes you out to the main road so I had to rip the grass up instead. As I got close to the other side of the field I said screw it cause I was heating that motor up and building a grass birds nest inside the truck. I had to cut about 5 minutes of exploring out at the end cause I accidentally deleted the audio for it. This park is real close to NSCU and sort of part of the campus. It will always be somewhat populated no matter the time of day or night because of the dog park. Because people are wack I'm not sure I could roam this place too much without someone complaining to the cops about riling their dogs up.
I was scared to full throttle it because it was liable to hit some Dukes of Hazzard jumps but I did end up ramming into a curb and almost flipping the truck later. I had no idea how level that field is or how jacked up certain spots could be but I just kind of 80% throttled it and it worked out. Being that it's largely open space I can easily span the entirety of it because I would only be putting one building in the way anywhere I went. Such a layout is real ideal for the O3 on the ground but about the furthest point I went is where the 1.3g audio started to get fuzzy. There are some 'cyclocross' or something paths nearby this field I'm going to check out but other than that I guess not much going on but a big ass field and canine dinosaurs.
I wasn't sure what those guys were doing in the field but I saw the one guy out there placing markers that looked like whatever they had that was white. I later could see they were playing disc golf or something like that. They were probably mad that I might run over or drag their markers but thanks to the O3 I could actually see them and steer around them. At the time I was sort of just reflex driving around what I thought might have been trash. Now imagine using what they were doing as an example of how such an FPV system could be useful for more than just exploring. Technically with 3 more available servo channels I could add a basic robot arm that could swivel left and right, up and down, and then actuate a grabber that could pick up a disc or trash in general. 4 channels could make an arm that booms out or rotates etc. So instead of walking out and grabbing a disc, dropping a marker, then throwing/walking it back.. you just drive the car out there and do it.










![RC Ground FPV How-To (Analog + DJI O3)
I might have covered some of this in less detail in other videos but here is a long compilation of how Im doing FPV with these various cars. Control protocols are a whole different video so Im not really concerned with that since Im using PPM and TBS Crossfire. Whatever protocol you use you just need to make sure that your controller is compatible with the receiver youre using on the car. Since youre mixing different frequencies on the same car for both video and control, you want to make sure none of these frequencies are stepping on each other (harmonics of a lower freq which can interfere with the tx of a higher freq). This is what my notch filters are for since I use 915Mhz control combined with transmitters on 1280Mhz.
[VTX/VRX Popular Frequency Options]
- 1.2Ghz - If this does not work decently for you using the cheapest 800mW options I would not invest in it further. You may have the most luck using 433Mhz control but if 2.4Ghz or 1.2Ghz control and proper filters do not provide decent results it might not be something to pursue any further for various possible reasons.
- 2.4Ghz - I havent tried this but theoretically it should be better than 5.8Ghz. 1.2Ghz and 2.4Ghz would always be the route I would try first.. but if those do not work out then 5.8Ghz might just do it for you. Video options for 2.4Ghz are probably going to be few.
- 5.8Ghz - This is typically going to give decent results for a lot of people since 5.8Ghz is so widely supported and offers so many high power transmitters and good receivers.
[Popular Control Frequencies]
- 433Mhz - Never tried it but I would guess its one of the best options. Not a lot out there anymore I know of aside from MFDLink.
- 915Mhz - This is what I use with Crossfire and seems to work very well. Not the cause of my 1.2Ghz video issues.
- 2.4Ghz - Maybe most common and probably fine for most people. A good 2.4Ghz controller can go hundreds of meters easily. I would only try to improve this if I can tell my control range is dying before my video range. You dont want to be in a position where youre looking at a clear image of your far away car you cant control anymore, but you also dont need a mile of theoretical control range if youre just hitting parking lots or fields.
There are tons of other things that can be done with ground stuff including the use of various telemetry but I would recommend keeping it as simple as possible for a first build. Is there one best solution for all? Not really. Analog can have extremely low latency with the right equipment which makes it very useful if you want to FPV drones. This is typically why you may not see a lot of people using both DJI and analog rigs with goggles. DJI doesnt want to play well with anything but proprietary stuff, and analog goggles can be expensive. Some people prefer to just get good goggles for both HD and analog and go with a different platform aside from the DJI Air Units.
See Chad Rains for a good video on long range tips - https://www.youtube.com/watch?v=mKvI3Gj3E9s RC Ground FPV How-To (Analog + DJI O3)](https://i.ytimg.com/vi/hL6XY024JPo/mqdefault.jpg)