How To Build A 7 Inch Long Range FPV Drone 

I didn't use flux in any of my builds and never struggled for any of my solders

@@Komet_fpvmaybe your solder wire has flux in if from the factory. Or the mix it’s made from is easier than most to solder with. But generally speaking, trying to solder without can be very frustrating, sometimes solder won’t even melt until flux is added.

@@John_Doe_6996 yeah I Know that's why

Thank you I appreciate. Good luck with your flights 🤘

Hey Thanks. Ill check that out, definitely don't want a short.

No problem! Happy I can help.

Nice, that setup will work well. Good luck with the build! 🤘

Thanks man. 🤘

Thanks !

Thank you. 🤘

Thank you 😁

Thanks! yeah I have changed some setting and its working great now.

thanks!

I was worried about that and thought the same thing. But so far in my testing the link has been solid out to 4 miles (will post that video soon). During my turn around at 4 miles I had a micro failsafe flash bad rx or rx loss but didn't seem to last long enough for stage 1 or 2. The drone kept moving fine. other than that I haven't had any issues thankfully.

@@andrewmedia3568 DO NOT use the immortal T with your 2.4 elrs receiver! You are slowly burning out the telemetry transmitter on the receiver! They are pretty strong, up to around 100mW and that is slowly burning it.

paused the video to look for this comment. defo need to get the correct 2.4 antenna!

@@djSpinege Nah the CRSF Antennas are working perfectly 🫡 😁.

they are not tuned to 2.4 ... far from perfect. just trying to help ... @@andrewmedia3568

Yeah t-motor has a weird plug on this fc. I had to special order one from rotor riot. rotorriot.com/collections/drone-accessories/products/avatar-to-fc-cable

I have since swapped the frame because I crashed and broke the frame and couldn't get a new one in time. I made a video of swapping all the parts to the new frame and I think the new frame is better than this one. thats the only changes if made. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xZk0Hpctw9I.htmlsi=iT2NF_xEtqYqw-Pu

🤣 yeah I need a few tools.

Im using crsf immortal T with 2.4ghz 🤣. It works though.

@andrewmedia3568 I mean I run my vrx with no antennas in my house .. it work to a point. I'm really really curious the range you'd get at 1w. I seen them go 100km on elrs24 and didn't even lose telemetry till 80km . So curious if you could still make it like 15km something reasonable

Yes I was worried about that but so far its worked great out to 4 miles 🤷‍♂

the stock ELRS antenna would give you a stronger signal than a wrongly tuned antenna. so far you got lucky! Happy flying@@andrewmedia3568

@@andrewmedia3568 Why bother with a long range control link if you're going to handicap it by using the wrong antennas and detune your radio? You can get 2.4Ghz antennas with longer leads. Use them.

@@Invid72 I have 0 range issues. I’m still using the same RX and antenna today, it works great. I’ve got some videos of me flying in the mountains if you wanna see😁👍. Even flew behind some trees at the top and never had any problems. Lots of people saying it won’t work but it seems to work extremely well.

No not if you are using the DJI controller. But the O3 only works with the DJI remote 2 (the Grey controller).

well all the 2.4 antennas are very short, maybe the micro failsafe is from my antenna placement. ill never need to go past about 5 miles otherwise i wont make it back, cant carry enough battery. you must be referring to a fixed wing at 8 miles out.

😅Dang ok good info Thanks.

@@andrewmedia3568 As RC heli pilot, that start and landing gave me chills. I heard stories ending in deaths, so really do not do that please...

@@jointercz I hear you, and appreciate the heads up. 🤘

Totally don't do what you did, or you'll miss having 10 fingers sooner or later

Yep what they said

To quickly answer your question yes you can. That bing said, if you buy the TBS version once you get the drone you will need to hook up the O3 using all 6 wires from the O3 plug. that will be RX, TX, 10v/vBat, G, SBUS and signal/ground. The extra 2 wires SBUS and signal/ground are really what is needed to use the DJI controller. The TBS version might come without those wires hooked up or the wires missing from the plug. so you might want to buy an extra O3 plug that has all 6 wires. Of course you will need to change Betaflight settings for the DJI controller to work and then again when you switch to TBS. There are tons of videos explaining how to wire the O3 for using the controller 2 and how to set up in Betaflight.

@@andrewmedia3568 thank you

Yes and no, Technically different antennas have higher or lower gain, higher gain being better for long range. But in my experience thats not what gets you better video range. What the longer antenna does do for range is insures that they wont get blocked by the quads frame or battery when flying far away and making turns. That way the antenna always has direct "line of sight" back to the goggles.

Yes definitely. Remember that’s 50 amps per motor. So 200amps total. And depending on motor kv and battery voltage you won’t even come close to hitting that max. Most batteries can’t supply that for more than 1/2 of a second and then voltage sags. 50 amp esc is plenty if your motor kv and battery voltage are correct. You can use the same motor kv I did 1500kv and 6s or look at other 7” long range bnf, what motors they use and what input voltage they say to use. Hope this makes sense and helps.

2808 works well on mine. I’m at 1500 kv 6s. But 1100 kv would work too.

@andrewmedia3568 yea I'm just going max flight time. I'm patient I don't need to go fast. Just slower if high winds. Also I'm not running 7" props anymore. Meant to post video on it years ago. Never did. I'll do it this year 🤣

Yes the DJI O3 has its own internal receiver. you don't need an external receiver if your going to use the DJI controller 2 with the O3. Running ELRS at 1W radio output will give your longer receiver range, video range is the same regardless of your radio eceiver.

Thank you so much, would you trust the stock dji products with flying around mountains? what is the max range you think you can actually get out of the stock dji products?@@andrewmedia3568

thanks, I have only built for friends but I could build a quad for whoever. what did you have in mind?

@@andrewmedia3568 I like something like what you built. I can control the speed and possibly take video.

@@dwaynewalker5035 if you don't want to build the dji mavics are solid drones and have great cameras.

@@andrewmedia3568 I just wanted something more personally made for me but if I have to go that route I was thinking about EXO cinemaster 2.

stock Beta flight 4.4 or 4.5 should be ok. But I made some minor adjustments to the PIDS. I think the filtering might be stock beta flight. Im using a different frame now. The foxeer mega 7. I posted a video about the frame swap and have some mountain flying videos posted as well. Its all on my channel.

Oke , i do have lot of frame resonance issue with this frame at 78 hz

@@E.Z.F.X. Interesting, I have never messed with Motor frequency on any of my quads. I never felt the need to anyway. Maybe some bardwell videos could help?? or you could email him. Sorry I cant help more with the issue.

Sure thanks for ty help anyway i find many people which have run the same setup without problrm so i should look where is problrm maybe in hardware thank you regards

Can you post here your pids setting ?

🤣 yeah probably a good idea, thank you 🤘

No sorry only DJI goggles work with there air units.

Oh yeah I'm very aware of the antennas. I have had 50+ people tell me that its impossible to use these antennas and that it wont work. but sometimes you gotta break the rules lol. I have flown 4 miles out with these, multiple mountain flights in the 2-3 mile range and quite a bit of overall flight time, never had an issue. it works great. 🤘

With the two 6s li-ion 21700 cell packs running together in parallel I get about 15-18 min flights depending on how im flying. total of 8000Mah. if im running it pretty hard about 10-12 minutes.

Thanks ! yeah they are pretty expensive, especially digital setups 😅

Depends on the battery. Small lipo 4-5 minutes. 2 li-ion packs 10-20 minutes.

Can i have some more info? For a complete build 7"?

Yeah the image is a bit dark. I appreciate the input. 🤙

is 2750 the kv of your motors?

Yes they are. I believe they will draw too many amps and will probably damage the battery but wanted to know what you think

@@Matthew-dr1tb that all really depends on what battery voltage your using and the weight of the quad. 2750kv is high speed 4s, too high for 6s. But depending on your drone weight and battery mah you could do medium range. Typically you want a bit lower kv for efficiency when flying long range.

Not sure the exact amount, but around 700 -800$. could be done much cheaper with a less expensive FC/ESC stack and going analog.

I never released it sorry. But here is where I learned how to build them, its a great video. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CLyWh9Sc7C0.html

Yes just haven’t finished the edit yet. It will be up soon.

Is the receiver outputing anything?? isnt the RX just listening to the radio commands? I dont have telemetry enabled.

@@andrewmedia3568 the FC will transmitter telemetry to your raidio through the reciever.

Can you disable it through the radio or BF? I don’t think I have telem on.

@@andrewmedia3568 yes, it's in Betaflight, turn off output telemetry. forgot in which page, I'm sure you can find it.

Unfortunately that video is unavailable now. Sorry I’ll have some other LR videos posted soon.

@@andrewmedia3568 I really appreciate that very much. I too am learning LR quad flight. Got some great stuff here and looking forward to surfing "Mt.Olympus", all the way to the glacier! That's a long way too! 😃👍

Ive done 6.5 km

Depends on the parts you buy. But generally yes you save between 200-400$ building your own. Look at the price of an iflight chimera pro 7” they are like 1000$. You could do this same build now for like 6-700$.

thank very much @@andrewmedia3568

I like to be risky 😄

no kidding. that wrong antenna would make my balls sweat. almost fail safe a few times! cant trust RTH to save you from a failed link@@andrewmedia3568