HDZero Freestyle V2 VTX Teardown & Thermals

[@MadRC]

Hi Everyone, due to weather and some health issues the review will be coming a little later early next week. Thanks

[@MCsCreations]

Get better soon, Ian! 😊

[@Mr.Laidukas]

Speaking about naked version, you mention possible thermal issues. However you never mention possible RF interference issues. Which might be even bigger factor to consider.

[@M-H433]

​@@Mr.Laidukasso you think the housings reduce rf interference?...be good to know that actually interesting comment.

[@M-H433]

​@@MCsCreationsyou didn't say,great review and stay safe there with family.

[@MCsCreations]

@@M-H433 Wrong comment.

[@Loki_Morningstar666]

I preordered one and I can't wait to get it. I just got my HDZero goggles yesterday and even just using them with analog I'm amazed at the picture quality.

[@starsstripesjacket]

Love your teardowns and explanations of the circuits!

[@MountaineerFPV]

Hope the Mad Scientist gets wells soon! And…shows us those new Avatar Goggles 😂🤣👊👍👍

[@MadRC]

Thanks. I am genuinely Rough as hell lol.

[@aviphysics]

I like how the PA is on a totally separate board. I wonder if it would have been overall thermally happier if there was more thermal isolation between the chipset and the power amplifier.

[@baggszilla]

Unbelievable work Ian!!! Thank you! Cheers!

[@MCsCreations]

Pretty interesting indeed! Thanks, Ian! 😊 Stay safe there with your family! 🖖😊

[@gmivisualsjason3729]

Looks very well thought out..... looking forward to putting one in a build. But definitely don't feel comfortable removing the heatsinks on this one..... Following with interest

[@mikeselectricstuff]

Bizarre that they're pushing the heat into the centre rather then the much larger surface area of the outside.

[@miquelmarti6537]

I don't think they are pushing it, as heat will accumulate where it dissipates the slowest. Maybe a lateral rugged surface would have helped a bit, or not at all. I'm sure their engineers are much smarter than us.

[@m3chanist]

Looks like there is enough meat in that centre slab to mill some fins into the sides of it to increase its exposed surface area....0.5 endmills though...shiver.

[@Simofly]

Very interesting ! But why 2 power amplifiers ? Was it the same on the older version ?

[@MadRC]

Yea it’s in a push pull setup to create the 1W of output.

[@nmrlab3807]

Thanks for this review. Does this camera/VTX work with EMAX Transporter 2 HD monitor or frsky skyvision hd monitor?

[@ugellin]

your answer is but a quick google search away.

[@ferocious_r]

But how many returns due to damaged/ripped off U.FL connectors will there be...

[@w1llyFPV]

@Mads Tech What is your opinion on this VTX? Will it be as indestructible in terms of voltage spikes as Vista?

[@nikotttin]

Hi, Nice tear down. How would you compare with the vista thermals? I run mine makes for over a year and no problem at all. Frankly I’m impressed :)

[@serval_fpv]

My naked Vista gets super hot need to get it in the air fast or have a fan on it while working on the bench..

[@nikotttin]

​@@serval_fpvsame for me but robust and still running strong (and hot!)

[@anarpearls9785]

Why two PAs for a single antenna port?

[@MadRC]

They use a push and pull setup to get the high power output. So they work in parallel to double the affective RF power.

[@anarpearls9785]

@MadRC Thanks for the quick response. Really cool stuff. is there any schematic for this available openly? Also, wish to ask you: how do the high power vtx that provide variable gain options from 25mW to 2W do that when they are using a fixed gain PA with no control?

[@spacekip38]

i'd love to get into digital systems, but everytime i look at the costs of a full system (receivers and goggles are expensive..) i just get a little sad :(

[@miquelmarti6537]

I was in the same boat. I sold my analog googles to get the hdzero ones and still flying analog only. Their interlacer is so much better than any other's googles.

[@miquelmarti6537]

a penetration test and comparison is what we want

[@MadRC]

Between what ? 1W is illegal to use in most countries including the U.K. so I won’t be doing it.

[@miquelmarti6537]

@@MadRC I meant btw analog and hdz. Sorry, I didn't know that and I already preordered. Do you know what's the maximum allowed power in the EU? Thanks

[@ferocious_r]

25mW, @@miquelmarti6537

[@Austinpowers46]

just fyi for peeps the freestyle v2 and nano cam 90fps will not work with x20hd

[@MadRC]

No I guess that limited to 60fps modes like the VRX.

[@AerialEscapes.]

Can someone help me hack fcc on dji air 3 with dji rc2??

[@MadRC]

Check out Dronetweaks app.

[@soursham]

So they just stacked the boards 🤔the one new thing is the 20x20 mounting. I’m have trouble pulling the trigger on this still😢

[@carbonspeed1050]

Has anyone run it completely naked?

[@MadRC]

I’m not aware of anyone that had but asking on the HDZero discord may be an idea

[@vanlifefpv6340]

HDZERO still relevant?

[@ironlionfpv]

Why wouldn't it be?