« Beholder Lite - $175 Brushless Gimbal Build - Part 2 | Main | FatShark PilotHD cam - the 50gram flight camera that almost rocks »



Feed You can follow this conversation by subscribing to the comment feed for this post.

Bo Lorentzen

You could just download the manual posted to the blogpost. see the top of the post, update nr 2. ;-)

Nathan H

hello, I own a qr-x350 and I messes up the remote settings. can anybody send me the Devo7 parameter file for the quad? I cannot seem to find on the walkera site, they only have the quad parameters.
my email is nhomer32@yahoo.com

Jeroen Schiks

Even a 2800 fits fine. Also there is a mod now to bypass the low voltage protection.



It's a heap of junk.

Bo Lorentzen

Hey Stu, Can't wait to see more videos from you.

5-6 minutes seems a bit short flying a naked x350, I would guess you might be living at altitude.? I get about 5 minutes safely with the gimbal mounted.

Stu Gledhill

Hi again Bo,

Many thanks for previous reply, it swayed me and my X350 arrived 2 days ago :-) Had first flights yesterday before wind kicked up (again!) and was delighted. Only slight concern is short flight times, didn't time 'em but only felt like 5 or 6 minutes, and that was without any payload yet. What sort of times are you getting with gimbal and camera attached?
BTW thanks for subscribing to me on Youtube - more to follow with the new quad when time and weather permit.

Bo Lorentzen

Hello Pedro, wow lots of questions.
YES you can connect the / a Video transmitter to a GoPro. if you have the FPV edition of the x350, walkera make a GoPro 3 cable for the transmitter. simply plug it in.

I have the CM2000, and honestly I do not like it, mine performed so badly that I did not post the video to avoid being tooo negative about it.. but personally I would recommend either the hummer or the Beholder lite which both work very well on the x350


First of all, thanks for this very nice review. Secondly, I was wondering if I can connect the fpv transmitter on a GoPro instead of the DV04 camera, so as I can monitor what I film. Secondly, do you think an Arris CM2000 would fit well, together with the FPV transmitter?

Bo Lorentzen

Hey Timia, hard to say which one really is better, wild guess for me would be the phantom as they have made the NAZA controller for quite a while now. the real question is probably what you like better and what fits your budget.


Hi i am a beginner looking into buying a quadcopter. I have narrowed my search down to the dji phantom and the qr x350. I read this review and was very interested. But now that the phantom has a lower price i am even more undecided. If someone could give me a bit more info comparing the two to help my decision that would be awesome. Thanks!

Bo Lorentzen

Hello Phil,
in GPS-hold mode, you can fly like you normally do, except when you let go of the sticks, the quad stay in the current position.


Philip Read

Hi, with this quad in GPS mode can you fly it to a new location and it will lock on or do you have to select manual mode first and fly to new location and put it back into GPS mode.

Thanks and great review

Bo Lorentzen

Hello Stu, wow. its hard to give the right answers for sure. I really like the design on the new blade 350qx, (but I do not like the two-screw system for mounting the props). and I think the blade have the potential for being a great FPV aircraft from a stock product. most important, it have the stable mode and the RTH mode. that remove some stress flying.

I have not had any problems with the F7 which is what I used when flying the walkera x350, but do not know what the power is on the Devo7.

I think the "big deal" on the x350 is the dual antenna RX because it is easy to always have a good antenna position, the phantom have only one which I have often seen become a issue for myself when turning around and the antenna hide behind the gimbal.

Stu Gledhill

Hi Bo,

I too am dithering over choice of quads.... New Blade 350qx or the Walkera 350 BNF. Have already got a Devo 7 (for flying my Ladybird and Hoten X) but am concerned its only 100mw transmitter and the included Spektrum 5E is 250mw (I think..)
Intend to go FPV so looking for range and noted that you've pushed the Walkera to 600m ish, was that on standard Devo 7? Would welcome your thoughts.
BTW Thanks for the reviews on the 'Tube - very helpful and usefull.

North Yorks

Bo Lorentzen

@WallyJas - had to say, its the wrong configuration for that. basically you would need probably to fly 3-4 batteries to compensate for the extra weight. add a GoPro to the math and its a bit tricky to do 20 minutes with such a small quad. my big s800 flies up to 16 minutes loaded down with 6s batteries and a 3axis zenmuse etc.



When do you think we will see +20min of flight time from these?

Bo Lorentzen

@Rotem, hard to say, I think its rated at 300m however I have flown out to maybe 600m FPV with the x350

Rotem Hirschfeld

what is the rang of the x350 with the standard controll (not a tempered one)?

Bo Lorentzen

@Costa F, good question, that the output is 11.2 (3s) The FatShark kit packs come with a handy voltage regulator. if you don't have one, ImmersionRC make them and ReadyMadeRC.com normally have them in stock.

Costa F

How many volts does the power output underneath the x350 for the FPV system put out when running 3S? And would it overpower the fat shark system?


If any one wants to use the RSSI output to evaluate different antennas, all you need is a cheap DVM and measure directly on a DC Volts range, this works fine.
On the latest Airwave RX Modules, the RSSI is on the side of the module, need to have a peer at the data sheet for what ever module you have.


Bo Lorentzen

Steve, that sounds like a cool setup with the FatShark Airwave modules. interesting with the reverse RSSI signal. I started putting together a analog tracker but got frustrated with how poorly the RSSI is implemented on most products.

Good link for the skew panar's seems those are almost a consumable, I keep trashing them on bad landings.

TOTALLY agree with the ReplayXD 1080 and video out. I printed a mount with a clip for the replay and a FatShark flight cam, works OK, guess Im ok with the extra weight since it give me peace of mind regarding the potential for video problems in-flight. Im not keen on using a DVR for flight-camera.


Still waiting for my QR-X350, supplier is a bit naff..

So while I'm waiting, I've put the time to good use...
Ordered 2 of the Fat Shark Dominator 5.8ghz Modules, these are more sensitive than the 'standard' Airwave receivers, important for FPV.
Although these modules are designed to fit inside Fat Shark Goggles, I'll have to design 2 new PCB's with 5V regs and I/O to take these modules, Hook these up to my Eagle Eyes FPV Ground Station, hang my Hobby king SD DVR recorder and 10.1" LCD on it, plus Video goggles I should be good to go.
Also need to test out a pair of huge Hi-gain 5.8GHz Sector Antenna's, these maybe better?
I have a Large Sea Horse water proof case ear marked to bolt this lot into.
If your after Skew Planar Antenna's Banggood have them at silly price ;-) I bought 4 of them @ $6.33 each.
I'll be testing these with an RSSI tester I designed specifically for Airwave RX's, they have the RSSI signal out going 'backwards', ie: Low Volts out = strong RF signal.
The Replay XD1080 does great video.. BUT, wouldn't it have been better if they had added Video out, similar to GoPro cams. This means I have to use an additional cam just for FPV, which is extra weight..



Cheers Bo also replied by email.. a bit more info.


Bo Lorentzen

@Steve sorry about that
the black stock walkera battery is 34mm wide - 25mm thick and 105mm long that is measured over the thicker part, however do not include the cables exiting the battery.
Mine is maybe 26mm thick, because I have already been using it a bit. but it looks like a new stock one should be 25mm ;-)

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Comments are moderated, and will not appear until the author has approved them.