This review was nearly a DISASTER: HDZero Freestyle V2 VTX
ฝัง
- เผยแพร่เมื่อ 5 ก.ค. 2024
- If you value the work I do: patreon.com/chris_rosser
Freestyle V2 kit: www.hd-zero.com//product-page...
Freestyle V2 VTX: www.hd-zero.com//product-page...
Timestamps:
0:00 Intro
0:45 On the Bench
3:38 Thank you!
4:18 Test equipment
5:48 It was all going so well...
6:50 Carl? HELP!
7:19 The FIX
8:06 You DON'T need to worry
8:23 VTX Power Output
10:25 Weights
11:01 Decase? Yes. Warranty Void? Yes.
14:18 No 25.5x25.5 mounting 😔
14:46 Conclusions - วิทยาศาสตร์และเทคโนโลยี
Wow! Great work figuring this out, Chris. Based on this, I have pulled down my video until I can verify whether my unit was affected. I don't want to show results from a defective vTX that doesn't reflect the real world performance of the unit.
Waiting for your range test video eagerly!
Will be a bit awkward if it's not defective but the range is just so poor that it seems defective
I really like your range test videos because I do my testing very similarly. HDzero really keeps confusing me, because there is not a huge difference in penetration if I compare the freestyle vtx v1 at 1 W with the whoop lite vtx at 200 mW. I suspect that either my freestyle vtx is not really having 1 W output power or the whoop produces significantly more output power. I am not sure what it is.
@@BumbleBeeFPV At 1w its 5x more power and with RF to double the range you need 4x the power. No matter how much line of sight open range HDzero gives you it doesn't help with multi pathing and interference when flying around obstacles. One thick tree is enough to full screen rainbow HDzero at 1w.
@ That has not been my experience with 200mw
Ups, that's a shocker. Maybe JB has to loosen those screws and repeat his testing 😅.
I was wondering the exact same thing!
There can be another issue: if this screw trick fixes a power output it also may broke GPS 3D Fix again because more VTX power can interfere with GNSS modules :D
Nah I think we should just forget about jb's hdz reviews.
JB is not an HD Zero fanboy. But likes getting free stuff. His review was more penetration based for some reason.@@elxero2189
JB did say he was getting about 500 mW on R8 though, so unfortunately doesn't seem like that was the issue.
Wow... What the heck those screws are doing? They're screwing the VTX! 😬
(Sorry, I couldn't resist the joke!)
Anyway, thanks a bunch for testing, Chris!!!
Stay safe there with your family! 🖖😊
Well, that's really surprising actually. Nice investigative work tracking down the true output power
Why the adapter for update cable, and it's not even included?? Why is the securing of the antenna made of plastic?
Great work with the form factor, but the rest makes me want to just quit HDzero now.
Update cable was fiddly before, but now it's even worse lol...
Are you going to explain to us how loosening screws boosts output power this much (or at all)? And how we would know for sure that if we get a unit it isnt affected?
Really, craziest test I have ever seen. What they need to use a torque wrench at the factory?
I was waiting to get one of these until i saw some testing on its actual performance. Glad its all testing proper 1w output power. Keep up the awsome work!
So undoing the screws is the new FCC hack. These little problems in the prototypes god to see there fixed.
Super stoked! Thanks for the great video!
It’s surprised that these power outputs are so high and reviewers had this weird screw issue. I really hope the massive power outputs you got after loosening the screws isn’t an anomaly for reviewers
Great review Chris. My biggest comment, I have been using this VTX for a couple months now in testing pre-production units, and I 100000000% feel that this VTX unfortunately should never be run decased, the stacking pin connectors connecting the two boards are not going to have a long life once the reinforcement of the heat spreaders sandwiching them is no longer an added benefit. Will GREATLY shorten the life span of this hardware.
I think if you use rigid spacers between the boards and a nut on either side you should be able to keep things secure. I agree that a flex connector would be better.
Hi Chris
Does the rx and tx on the msp connector allow for the smart audio / stick controls?
is this power output the same as the v1 freestyle vtx? or does this have more?
Like always doing a great testing thank you .
Would there be a performance advantage to cooling a VTX? Do they lose range as they heat up?
Any know how long you can run a hdzero vtx without cooling before it breaks?
Great review. Thanks man.
Would love to see some real world testing, little rip around to check range and penetration.
I wonder if this affects the v1 vtx? Will need to find a video that tests the output power of the v1 to see if it underperforms...
Hi, i have the hdzero Freestyle v2. I updated it to 1.5 and unlocked it also.But now all i get is no signal to the Goggles. Please help.
Can you test please if the power consumption on different channels in consistent? I assume if it is than it's a bad sign...
Do you have to unlock the VTX to use the 1 watt mode like the V1 freestyle or does it come unlocked?
Yes 1 watt is illegal they cannot ship it unlocked
By what mechanism do the screws affect the TX power? I need an explanation noooooowwwww
Could anyone tell me, please, how to switch between power output modes 25/200/500?
thank u good review
Thank you Chris!
14:43 Or drill some new holes🤪
So how can I mount it, I don't use tape, I want to use 20x20 screws, but if I tighten too much, the power will drop and I won't be able to check it because I don't have measuring tools. Unless my vtx is defective, I don't know
You won't have this issue with production units.
@@ChrisRosser uff :) Can do you test flight with max power?
But the dji vista does support 1200mW with FCC Hack, and that is more than this hdzero vtx. Or is there less power output in real?
The 1Watt coming from the HDZero is true 1Watt, DJI's 1.2Watts, is not. I don't recall the true power output of DJI, but Chris does have a video on it. I believe it's this one:
-
th-cam.com/video/Vbw7eabpiZQ/w-d-xo.html
Power really doesn’t mean much, especially comparing against different systems.
This VTX with its nearly 1.4W of power on R1 compared to a vista at the 200mW setting likely have the same performance.
Range wise when the Avatar 1S 350mW board first came out I tested it long range against the 1200mW vista, cranked, and signal integrity and range was WAY better on the 350mW board.
It’s honestly all over the place in my experience. Even so, I fly HDZero 60% of the time, so it definitely has it’s place.
Vista 1200 mW includes antenna gain. Output into the antenna (what's being measured here) is much lower.
Check out my earlier vtx power testing video. The vista only outputs about 300mW conducted output power.
chris, can you please create like a complete training video for FPV starters please? Joshua does it well but i feel like its a bit uncoordinated
The VTX is capable of maximum 1W RF output at R1 channel if unlocked with license or approval from the local authorities. (taken from their website) So is the production unit ship "LOCKED" ?
Do we have a similar pehnomenon with analogue vtxs too? Also, I always thought R8 was good because it was just outside of the wifi range, but if the power is reduced, maybe not so?
The lower the band, the higher the power. Every vtx does that
@@miquelmarti6537so do you use alsways channel 1 if youre alone?
How does the screws being too tight affect the output power?
Its like they forgot to put some spacers btw the stacks. Eagerly waiting for my unit to arrive.
@@miquelmarti6537 Thanks, I just read on the discord HDZero forum that the heat sink was machined in error and the RF is grounding out to the heat sink.
I am a fan of HDZero and as long as there’s an explanation of what happened and it’s fixed no big deal.
Why would VTX antenna stem coax being over the board be a problem?
Because of a lack of EM isolation when decased
there's some issues with the manufacturing of hdzero vtxs, with the og 1w vtx I've seen that the performances and temps gets WAY better when you clean it and apply thermal paste more generously
🔥 🔥
I really enjoy your content, I tried to like this video but it wouldn't let me, looks like it is stuck on 600 likes 😊👍
What actually happens when losening those screew? How can it affect the power?
I'm not sure, but putting mechanical pressure on a chip can affect internal band gap voltage references which could be used to control power levels.
@@ChrisRosserThis product is not safe to be used as a video link.
This has been fixed in production. So it's not an issue that will affect users.@@stst8301
I have that same tiny fan!!
💪👀
🙌💥
great review.
so you but goggle, and full vtx-kit, yet you cannot update until you by another adapter cable that isn't even on the website????
It comes with the googles
@@miquelmarti6537 thank you sir
I really hope it’s just a prototype thing. 😬
no 6s HV ? guess I need new packs...
Just use a BEC, it’s honestly pretty low effort. And build reliably goes up exponentially.
I’m using the Freestyle VTX on an 8S build.
I primarily use the Matek 6-30V 5/9V BECs BTW as they are small, cheap, and reliable.
Feel bad for JB.
No need he doesn't really care. Just saves face when he needs to
I feel bad that the Hdzero vTX had this defect. I have pulled down my video until I can test whether my vTX was affected by this issue. I'm really grateful to Chris for putting in the time building up his lab and discovering results like this.
😎
hello brother please make a permanent magnet synchronous motor ...by modifying a bldc motor ....and compare their torque and rpm ...
I lOVE my HDzero goggles!!!!!
How is someone who doesn't have equipment to test the output power supposed to know for sure whether their vtx2 is underperforming?
Measure the power consumption. Should be 14W on R1 @1W. Also this doesn't affect production units.
No way you can use this at 1w without the casing. You really should know better then to show something that will result in the vtx's power amp burning up, would it really have been that hard to do a thermal test?
I am waiting for this to be tested. My naked Vista tolerates 1000mW, just need to be flying to keep it cool enough. Hopefully same for this HDZero unit.
@@bcc1955 I'd expect the same performance as the original one w VTX which does not tolerate being decased
This vtx is a bombshell! Makes Me mad I didn't go hdzero
They are over advertising a Beta product.
having the power output axis as logarithmic and topping at 10000 is misleading since it hides the difference between channel 1 1.3mw and channel 8 435mw, shame that the data was presented in this way which leans me to think that there was an intention to mask the results...
Learn how to read graphs
You'll be upset to learn that decibels are logarithmic too...
It is perfectly pictured and he explains that in another video comparing all the systems, because doubling power wont equate to double range.
This is a joke right?
Those thumbnails really communicate quality content for 12 year olds.
Please dont.
I panicked and accidentally unsubbed.
That's some crap quality control. Wow.