That was the best non-techie explanation I have heard so far 👏👏👏. I’m a retired RADAR and COMSAT engineer, and I’ve have worked on systems that operate in the megawatts on microwave frequencies past 20GHz. So it’ll come as no surprise that the only thing that raises my body temperature to critical levels is the amount pseudo science I’m bombarded with based on ridiculous conspiracy theories. Thank you for bringing some easy to understand science based facts to the great unwashed masses. Nidge
I've heard that people who work with radars are more likely to get cancer. It wasn't mentioned why, just statistics. Don't remember where it was written, though. And for sure there was no conclusion on what is the cause.
Also, don't forget that there are no long term studies on how electromagnetic waves affect you, not to mentions that there are different frequencies. One of the examples of how much we don't know is recall of at least two drugs for heart problems, which were wery toxic and life shortening. But this was discovered after decades because of lack of long term studies. If there is correlation between strong field of electromagnetic waves of specific frequency, it will be very hard to scientifically prove that. Both people who laught about this and those who say that it may be related to corona or some other thing just don't know. If scientists in their publications say that we don't have sufficient data, how normal people can know?
@@stinkeye1672 as a matter of fact many have had all kinds of health problems no one talks about accept the effected. There's the guys that smoked into their 90s without getting lung cancer, but that doesnt mean cigarettes do not cause lung cancer. We live in a post-truth, post-fact world. Truth and fact are not subjective, but our perception, media, and for-profit scientific research certainly are.
Excellent video man, but I think I'll be sticking with analog still. Just a note of caution though regarding non-ionizing radiation. These DJI goggles are probably FCC approved, which means that the output power was tested and verified against a "200 lb 6 foot man"; not, lets say, a younger person. This means that for many people, the margin of safety may not be that large. Additionally, the 1200mW "mod" further increases the output power above recommended limits. We have seen many examples of how non-ionizing radiation indirectly can indeed be harmful to the human body. For example, a number of side effects have been known to occur (cancer included) due to excessive, close Wifi exposure. The same can be said with Bluetooth. And 5G. These are small devices, like our phones and tablets, outputting similar power to the DJI goggles. Although there is not a great deal of direct evidence correlating cancer, mental health, and disorders with low power, non-ionizing radiation (as there is with ionizing),the indirect evidence against the safety of non-ionizing radiation is enough that warrants a much closer look. It seems to me that the FCC just kind of said, "yeah, it makes money, so let's find a way that all these [kind of] harmful devices (phones, etc) can get on the market". Also take notice of how all the "scientific and medical tests" pertaining to non-ionizing radiation have been carried out by the cellphone companies that make money off selling phones (that of course use low power non-ionizing radiation). Kind of reminds me of how the tobacco companies hired doctors to say that cigarettes were beneficial to one's health. This is of no discredit to DJI or anyone else, but I'm just saying to take great caution while having an rf source right next to your head. If Bardwell is reading this, I would greatly encourage him to do a safety test using some sort of rf meter or tester. I think it would benefit the FPV community and allow people to really see how safe (or...unsafe) the DJI systems is in comparison to other systems out there.
Yeah, I think we have an ocean of anecdotal evidence that is just not dismissible through "the science". Obviously something is going on which is not covered by official safety guidelines.
Technically, if you put the goggles on during a bright day, you’re giving yourself less radiation! 😂 100w to the face vs 1w to the face while covered by the goggles
Few.... 😅 just bought my dji goggle today. Will be delivered tomorrow. Was a little scared by your title there Joshua 😅. Thanks for your videos! Love the positivity 🤜🏻
Extra class Ham radio operator and EE here. This is an ok explanation, and the DJI goggles are likely harmless, but I still wouldn't feel super comfortable with 1.2Watts of C Band RF that close to my eyeballs for extended periods of time (like 24/7). I'll let someone else sleep with their wifi router next to their head. That said, my understanding is that the DJI goggles are a phased array system, which means beam forming is going to concentrate that power in a given direction. If that direction is not into the soft tissues in my eyes and brain, that's much better, but if I fly behind myself I would assume the EIRP into my eyes will be a bit greater. Still, localized heating causes just that, localized heating. It's next to impossible to show that localized heating causes cancer or doesn't, since the timescale for the exposure is too long, so unless the power is enough to literally burn my eyes out I don't anticipate that using the goggles occasionally is going to kill me, give me cancer and kill me, or cause me to go blind and kill me after I wander into the street. Use the minimum power necessary is always a good rule of thumb though.
@@noxi0us I'll bite once and exactly once; I"m assuming you're just trolling, but it's gonna depend how focused it is whether I care how much near red (IR) light gets into my eyes. I'm not Michael Reeves, so I don't shine lasers in my eyes, but you told me a "power" and that it's "focused." What is relevant and needed to assess the danger is the power density on the tissue and the frequency, the latter of which you did provide at least, but the former you have ommitted. You should go check out AvE's channel and his videos on welding glasses shielding from IR, visible, and UV for more on that topic with regard to the damage IR can do.
@@RobertResearchRadios Sorry for my tone, I was a bit annoyed there. And off by a few 100 Thz. I was referring to the visible light from the screens. I am just trying to understand what would make that 5.8 GHz radiation more dangerous to your eyes than visible light.
@@noxi0us The visible light from most screens doesn't hit your eyes with an energy density high enough to burn the tissue (rods and cones) like some lasers, but you're asking questions that ultimately require a more detailed analysis. The frequency is everything and all frequencies interact differently with the human body. I'm not an optics engineer, so the references I'm familiar with deal more with RF, but I'll provide those for you anyway. See the 2nd bullet in the "Articles" section of the following page on arrl.org for evaluating station exposure (which basically applies to all cases where you need to evaluate exposure from RF emissions): www.arrl.org/rf-exposure I hope this helps, but you really need to find a different resource for IR, visible, and UV that describes how to make a similar evaluation. Please let me know if you find anything good.
Thank you Joshua, it's always a pleasure to watch your vids... About RF irradiation I prefer to be on the safe side, I'm flying in SRRC mode not in FCC mode... in this mode you have full power on the Air unit as FCC (30 dBm) but way less transmitting power on the Googles 19 dBm (0.0794W) instead of 30 dBm (1W) this has the same range as FCC and works perfect for me... "SRRC mode has less chanels available than on FCC mode but I don't care where I'm flying". I'm using the Video Aerial Systems Cyclops V2 LHCP antenna on my googles to have event less RF power going in my head's direction... - see DJI data sheet for more information on SRRC mode. (note: SRRC mode must only be used if it is complying with your local regulations). ENJOY, BE SAFE, WEAR A MASK OR DJI GOOGLES IN SRRC MODE ;-)
do you know if i can make this change to srrc mode on the googles 2 , as i understand the mode is auto selected according to the region the system detect your at.
As soon as I hit play I thought, “He’s just going to talk about the difference between ionizing and non-ionizing radiation”, not even a minute in that is exactly what he does. Just because we are talking about non-ionizing radiation doesn’t make them safe. Nice video and your heart was in the right place, but I still think they’re dangerous.
Non ionizing radiation is unsafe at high intensities but the point is the intensity of this radiation is low and the time of exposure is low so the risk is also low.
@@JoshuaBardwell I understand “the point”, you can hear the same thing said from a million other videos about the safety factor of electronics radiation in general. Again, I know you meant well here and that you’re expressing your opinion; but you’re not really telling anyone anything about the risks of these goggles. You have no scientific data on the subject. Yes you can say they emit non-ionizing radiation and that they are low power (1 watt in your case) but they are indeed too close to the brain (DJI Goggles in particular). For example, might they induce an acoustic neuroma? What effects do they have on the inner ear and say tinnitus? Can they cause headaches? I could go on and on... You’re generalizing and not addressing a lot of other concerns that aren’t directly to related to cancer. So this discussion goes far beyond ionizing and non-ionizing radiation and the fact that the goggles are the latter and therefore should be implied as safe.
Thank you for addressing this! It has been on my head, pun intended. I don't know much about the subject and I feel that my fpv set up has been causing me eye and head issues like extreme headaches and double vision. I have stopped flying fpv and the headaches and vision problem has gone away. I truly love the hobby but feel afraid to get back into it because of what I think it has caused. Thanks again for the video, and I would love any feedback from anybody. Stay safe!
Lost of people experience headaches, but I think it's more because our brains have a hard time rectifying the fact that were seeing upside down, but our brain/body isn't also upside down. I dont get headaches but sometimes usually around dusk after doing some freestyle I'll come back flying level/straight, but I feel like I'm flying sideways. If I start to fly in a slalom pattern, and move my head to match my problem goes away. My wife cant handle it at all, nausea, and starts to get a headache just watching a monitor. This is just my opinion I've formed from personal experience, and I dont feel I explained it very well either. I hope you can figure out something to help you fly. I talked to a guy that takes sea sickness pills b4 flying. Good luck
Hey. Just thought I'd mention that some people are sensitive to the double display system in goggles like DJI's. They are sensitive to focal changes. Even when not in need of glasses. For them it's better to use goggles with one big lens/display.
Very Good Topic ! I feel a little heat and pressure after flying with the new avata google ! I purchased those shields that redirect the signal to the front no need hit my face ! You think the plastic with cooper foil protect your face a little !
My father was a microwave tec for the DOD. Your spot on Josh My dad didn't fix microwave ovens but with a microwave and a metal detector maybe you could build a jam in ng unit maybe. He helped make sure there was no interference when we launch nukes I thknk
I did industrial radiography for a bit... interesting not only do you get radiation from the sun it's also naturally occurring in the ground... for fun get a survey meter (geiger counter) and walk in a field of grass or rocky area...
Well, you're radiating ionizing radiation as well, every human. We have potassium in our body, most of it is stable Potassium 39, but there is also Potassium 40 which is unstable and radioactive. That why bananas are more radioactive than other fruits as well. The point is that small doses of ionizing radiaton aren't bad, they are even healthy for us, but they start getting harmfull when the dose is above ,,natural''.
@Galaxy Studio im interested where you got the information that small amounts of radiation is healthy? I have also heard this claim from radioactive “healing” mineshafts. If Ionizing radiation causes DNA damage shouldn’t it be better to minimize it all the way?
Maximum transmit power on cell phones are 2 watts and the reason is that we hold the phone so close to the head. The very old cell phones (brick type) where transmitting on around 12 watts and that's why the antenna had to be outside of the car.
Very interesting, as I am studying for my Technician class license for FPV, and I covered this subject just yesterday. By the way, have you ever heard of anyone using FPV being contacted by the FCC for not having a license when using their FPV?
What class do they have for fpv? I'm studying for part 107 myself. My understanding is if your licensed under part 107 flying fpv is illegal, even with a spotter, because the pilot has to maintain LOS.
Apple iPhone manual: says that you should not hold the the phone directly against your ear or cheek because that would be dangerous. You should use earphones or the speaker instead. DJI manual: not commenting on health concerns. 1W is about the output of a cellphone. I guess the DJ FPV system is probably not 100% safe to use. JUST MY THOUGHTS.
@@RCOverKill this is what i think too, FPV is more important than a stupid cellphone, i keep my phone in airplane mode most of the time and this is what every FPV pilot should do, whilst enjoying flying without RF interference
S Grim , by any chance do you also drive on the same side of your vehicle as you hold your phone to your face? If so, it could be the sunlight on that side of your face .
S Grim , how about when you’re driving, the sun is going to be coming in on you from the side of the car that you’re driving on. I was a delivery driver, here in Australia and the right side of my face was more suntanned than my left.
S Grim , that’s not good to hear, I always use the loudspeaker on my phone because of the possibility of damage. Maybe I was doing the right thing after all.
I think you don't include the frequency in your calculation. Sunlight (Yellow) is around 100THz, here we are talking about 5.8Ghz. Penetration is higher, the lower the frequency is. I agree, the penetration of 700mW at 5.8GHz in skin is very small, in the Range of a few tens of a mm. But the electric signals inside nerves are also very small. And especially the surface of your eye balls is also a point of risk. And the Antennas of the DJI System is very close to them. Don't get me wrong, I also own the DJI System, and I love it. Personally I think it's the greatest invention since sliced bread. But it's never wrong to at least ask such question. A cheap microwave with 500W heats up your food in a very few minutes. I wear my goggles for 45mins when flying a wing. We should at least be aware that this might be not the best for some parts of the body :-) Thanks for your great movies, I appreciate your work. And because this doesn't convert to food, I will set up patreon the next days :-)
@bardwell This is exactly what i was thinking. If you look at en.wikipedia.org/wiki/Non-ionizing_radiation (not the best source) You can see that the Biological effects on higher frequency resulting in heating up the body tissue. Also with a mobile phone the values are set to fluctuates to minimize the risk, and even with phones they are stil not certain if its safe. With the dji goggles its continuously outputting the same power, we never know how safe it will be on the long run.
Have you ever taken a look at the Cine-Bird FPV by stan-fpv? Its a frame designed for the insta360 one r. Apparently it makes the quad look invisible, but no one has ever done a vid on it besides stan himself so I'm a little sketched out.
Hey josh nice video as allways, thans for this...🙏🏽🙂 Can you make a vid. About the new setup on your dji goggles pleace.. that will be awesome.. thx for youre vids it helps me a looot...👌🏼
WHAT is that on your DJI goggles? I don't see a video uploaded about it...and I WANT IT!!! LOL Seriously, can you please provide a link or who makes this mod? I like the looks of it better than it just sitting on the side of the goggles and it looks to be easier to do than the iflight (where you dismantle your goggles to bits!). OK, what is it and WHERE did you get it! Thank you Joshua!!
I could've got DJI and still can, BUT.. 1. 2x heavier unmodded. 2. No small drones with cheap batteries for playing for long periods with many batteries. 3. Very expensive drones you can't relax with properly. 4. They have higher latency. 5. Image cuts to black immediately making it more likely to lose or crash expensive drone. 6. Only 2 cameras actually look O.K. (i own 4k TV's) 7. Dji is and always has been just a flying camera company for photographers. 8. Stress, worry, devastation, ect. 9. I'm not stupid.
Whether or not it adds to the "total" exposure levels a human body is put through that could potentially be harmful in ways yet to be known is MUCH less a concern than something that is known, such as fatigue and stress and headaches from over exposure to small areas of bright light. These effects are often immediately noticeable for a lot of people. I think I'll worry more about taking frequent breaks than whether or not I'll develop brain cancer in 30 years.
I have a radioactive Cesium 137 pellet in my possession at this very second. It's part of a tool I'm using for construction inspection (I'm on lunch break). I went through safety classes, wear a dosimeter, and have a Geiger counter. Cell phones, wifi, radio, 5G cell towers, none of these are ionizing radiation, and none them set off the Geiger counter more than ambient. Things that do measurably set off the Geiger counter include CS 137, bananas, and Grandma's "Good" dinner plates. Hell, your own body emits more ionizing radiation than DJI goggles do.
well this is a non- ionizing radiation- that means it has no short term effects. mm wave is what we are talking about , if you study more , it has been considered notorious for a more silent yet prolonged effect. so what are we talking about? a non ionizing radiation if exposed for a longer amount of time like few hours or more causes skin irritation as we all know 5.8ghz frequency is not penetrable but absorbable. so when in close proximity or under concentrated exposure and/or continuous exposure causes skin irritation. but prolonged exposure of more than 10-15 years has shown 1. development of cataract at a younger age. 2. increased tendencies of cluster headache and increased incidences. 3. retinal layer tear, especially in between inner plexiform and ganglion cell layer. 4.dendritic cell death of neuron due to mm wave is under query but a possibility . 5. also an immediate effect that is going to get noted is dry eyes. well these are clinical effects of mm waves above 5400 mhz but lets talk about OUR HOBBY. our batteries last 5 mins. we fly max 8 packs a day . 1-2 days a week. if you are a race pilot you are spending may be 4-5 days a week. considering this into context. non ionizing radiation shouldnot affect a hobbyist . but prevention is better than cure. so precautions 1. unplug your goggles after the pack. 2. rest yourself after every pack. 3. look for signs like what we call it as floaters- (tiny specks that seems to drift around your field of vision ) usually noted when you cough excessively or after you vomit 3-4 times. 4. hydration is the key to all problems. 5. flying for more than 3hrs with breaks inbetween , have a small sugar candy . our brain survives on glucose or polysaccharides . 6. cluster headache/ tension headache is mostly due to hypertension . but mm waves or frequency 5400 mhz mimics a headache thats similar to cluster headache.if you get while you fly. land your craft , rest hydrate and then head home. 7 . stay in lower band of frequency in 5.8ghz radio spectrum MYTH BUSTER - NO YOU WILL NOT GET CANCER NO, YOU WILL NOT GET CATARACT YES - DRYNESS OF EYE /REDNESS NOT DUE TO MM WAVE radiation BUT decreases blink rate. so plug in and fly.
If anything is going to cause dry eyes and headaches, it is the fan or misaligned lenses. Not 1 watt of 5.8 GHz radiation. Btw what is that compared to several watts of 400 THz radiation concentrated directly to your eyes. (visible light from the screens)
I am Industrial Radiographer by trade. I use ionizing radiation on a daily basis. I literally absorb hundreds of times more radiation, in ONE DAY, than you could ever be exposed to, by any electronic device, used in a year, that is sold to the general public. People are just scared of what they don’t understand. Furthermore, your body naturally heals it’s self after exposure. ALL electronic devices sold to the general public are not capable of harming you in any way(other than electrical shock). Repeatedly sunburning is much more dangerous to your health then any electronic device.
It's been shown scientifically that FPV goggles can effect your beard hair, turning it white/grey from your natural colour, that or we're all getting older.........I'm blaming my FPV goggles for my white hair 🤔😂😂
The people who say that radio waves are bad for you should get a stage because the visible light from the spotlight probably heats you up more than the thing they are complaining about
Hello joshua ! Great video, do you plan on reviewing the dji goggles with this new analog mod ? It would be great to test the latency and all of that stuff. Have a great day!
FPV goggles are receiving devices, they don't transmit very much, other than some commands occasionally to the far more serious transmitter on the drone. But I would be leery of strapping an air unit to the top of my head. The power of electromagnetic radiation falls off exponentially from the source, meaning that if you put the source extremely close to your body it represents a far greater risk than a source at a distance, even a short one. All forms of electromagnetic radiation (Gamma/EMF/Light) can ionize. There were cases of the old Nokia cell phones giving people tumors in the exact shape of the phones transmitter. Cell phone power has actually been capped in the past because of this issue. The effects of this tend to get played down by the communication industry. But really, the goggles shouldn't be a problem. How often do they really transmit anything? It's the drone itself that transmits the massive amount of information.
Hello Joshua, It is clear, that ionizing radiation can kick-off electrons from the atoms of human body, thus can be dangerous if the dose is high enough. It is also clear, radiations from telecommunication systems (e.g. these DJI googles) or power lines are not ionizing radiations, and leaving the atoms of human body unaltered. However this doesn't directly conclude, electromagnetic-radiation at these frequencies and amplitudes are guaranteed to be harmless to us. It does interact with our atoms (and cells) through the electric-field and magnetic-field. _It has effect on us, for sure._ Does it mean anything else other than a negligible heat effect? Does it influence our cells or organs in a harmful way? This is the question, and a question to biologist mainly, and as far as I know, today we don't have a clear answer for that. That's why most probably, we have health-limits for all of these emissions (power lines, broadcast, telecommunication, etc). I think we know that we don't know the effect-mechanism, and we want to be on the safe side, by limiting the exposure. Once I took a look into these limit-values, and found, they are really different at least between Germany and Hungary. This also indicates to me, there's no solid scientific base for determining these, but authorities set limits for the reasons I wrote. I personally would never be afraid of DJI googles, or cell-phones, or living close to power lines, but not because I'm sure they are harmless, but because for me the likelihood of them being harmful is tolerable. :)
Why do cell phone manufacturers warn against usage close to your head or agaisnt putting the phone in your pocket? Non ionizing radiation damaged tissue when the transmitter is close to the tissue for long periods of time. All wireless devices should be used in moderation. Speaker phone and wired earbuds are preferred to putting the phone to your head.
I'm a diagnostic radiographer with a BSc(Hons), I work with ionizing radiation for a living and could not have explained this better. Also, I learnt something today!
I notice your using the digidapter there. Looking forward to that review on those. Was looking at them my self but concerned about the normal rapid fire cover sticking out to much. Plus £45 is a tad expensive for it not to come without their own cover to it
You have no idea how often people are asking me this. So I made a video to answer it. What do you think? Is it safe?
No idea✌ just came for the comments 😂😂😂
Joshua Bardwell until you do the 1200mw mode and put popcorn cornels in your goggles for 3:30 I refuse to believe you! 🤣
Not safe sir, since day one ive advised nobody use this system
Work for years construction get hell 😅 of a tan
@@pleiadianpilot5076 If you've advised nobody then it must not be that big of an issue .
"All I know is my teeth have never been whiter and my garden is spitting out 10 lb tomatoes!"
LOL
😂
😂 what is this from
Vegas vacation
Supr Dlux oh yea.. Eddie 😂
My goggles make me feel more like cyclops than the hulk but I'll keep you posted for any change. ;)
When I was a kid: Do not sit too close to the TV
2020: Lets do some FPV
Older TVs (image creation by electron beam) are indeed producing x rays (ionizing radiation)...
2020: Strap the tv to your face.
That was the best non-techie explanation I have heard so far 👏👏👏.
I’m a retired RADAR and COMSAT engineer, and I’ve have worked on systems that operate in the megawatts on microwave frequencies past 20GHz. So it’ll come as no surprise that the only thing that raises my body temperature to critical levels is the amount pseudo science I’m bombarded with based on ridiculous conspiracy theories. Thank you for bringing some easy to understand science based facts to the great unwashed masses.
Nidge
Haha so true and did you know 5G caused the coronavirus
I've heard that people who work with radars are more likely to get cancer. It wasn't mentioned why, just statistics.
Don't remember where it was written, though. And for sure there was no conclusion on what is the cause.
Also, don't forget that there are no long term studies on how electromagnetic waves affect you, not to mentions that there are different frequencies.
One of the examples of how much we don't know is recall of at least two drugs for heart problems, which were wery toxic and life shortening. But this was discovered after decades because of lack of long term studies.
If there is correlation between strong field of electromagnetic waves of specific frequency, it will be very hard to scientifically prove that. Both people who laught about this and those who say that it may be related to corona or some other thing just don't know. If scientists in their publications say that we don't have sufficient data, how normal people can know?
And what exactly do retired radar and comsat enginneers know about human biology?
@@stinkeye1672 as a matter of fact many have had all kinds of health problems no one talks about accept the effected. There's the guys that smoked into their 90s without getting lung cancer, but that doesnt mean cigarettes do not cause lung cancer. We live in a post-truth, post-fact world. Truth and fact are not subjective, but our perception, media, and for-profit scientific research certainly are.
I think stress is most lethal to humans. In that case, when enjoying ultimate Fpv freedom with a DJI fpv system, it works as a cure.
Except for when you are racing. That's just pure stress ^^
You couldn't be more right:)
"ultimate FPV freedom" up to 4 km.
@@FlyingBuzzard sounds like the ptsd nonsense that people claim
Hot lava is also more lethal, but that's not a reason to not be careful about other sources of danger
Thanks for your work, Joshua.
I wonder if there is a possibility of moving the transmitter away from the head, on a tripod, for example ...?
Excellent video man, but I think I'll be sticking with analog still. Just a note of caution though regarding non-ionizing radiation. These DJI goggles are probably FCC approved, which means that the output power was tested and verified against a "200 lb 6 foot man"; not, lets say, a younger person. This means that for many people, the margin of safety may not be that large. Additionally, the 1200mW "mod" further increases the output power above recommended limits. We have seen many examples of how non-ionizing radiation indirectly can indeed be harmful to the human body. For example, a number of side effects have been known to occur (cancer included) due to excessive, close Wifi exposure. The same can be said with Bluetooth. And 5G. These are small devices, like our phones and tablets, outputting similar power to the DJI goggles. Although there is not a great deal of direct evidence correlating cancer, mental health, and disorders with low power, non-ionizing radiation (as there is with ionizing),the indirect evidence against the safety of non-ionizing radiation is enough that warrants a much closer look. It seems to me that the FCC just kind of said, "yeah, it makes money, so let's find a way that all these [kind of] harmful devices (phones, etc) can get on the market". Also take notice of how all the "scientific and medical tests" pertaining to non-ionizing radiation have been carried out by the cellphone companies that make money off selling phones (that of course use low power non-ionizing radiation). Kind of reminds me of how the tobacco companies hired doctors to say that cigarettes were beneficial to one's health. This is of no discredit to DJI or anyone else, but I'm just saying to take great caution while having an rf source right next to your head. If Bardwell is reading this, I would greatly encourage him to do a safety test using some sort of rf meter or tester. I think it would benefit the FPV community and allow people to really see how safe (or...unsafe) the DJI systems is in comparison to other systems out there.
Yeah, I think we have an ocean of anecdotal evidence that is just not dismissible through "the science". Obviously something is going on which is not covered by official safety guidelines.
@@jimsagevid2286 Yep, the same thing's happening /w the virus treatments as well. And the sugar/processed foods industry. Just to name a few...
I'm sorry, but that's just not true. Receipts from well-established research, or recant.
You were way more calm then I could of ever been telling people that DJI is not attempting to give you cancer.
Technically, if you put the goggles on during a bright day, you’re giving yourself less radiation! 😂 100w to the face vs 1w to the face while covered by the goggles
Makes sense, you are right!
minus the area where the googles cover your face
@@Matt-fl2vr thats the joke
Bravo Joshua! As a RF engineer, I can say that you are spot on.
Few.... 😅 just bought my dji goggle today. Will be delivered tomorrow. Was a little scared by your title there Joshua 😅. Thanks for your videos! Love the positivity 🤜🏻
Dji has gotten so much better. I love it. I wont freestyle without it
I was just reading a 5G article! Haha
Extra class Ham radio operator and EE here. This is an ok explanation, and the DJI goggles are likely harmless, but I still wouldn't feel super comfortable with 1.2Watts of C Band RF that close to my eyeballs for extended periods of time (like 24/7). I'll let someone else sleep with their wifi router next to their head. That said, my understanding is that the DJI goggles are a phased array system, which means beam forming is going to concentrate that power in a given direction. If that direction is not into the soft tissues in my eyes and brain, that's much better, but if I fly behind myself I would assume the EIRP into my eyes will be a bit greater. Still, localized heating causes just that, localized heating. It's next to impossible to show that localized heating causes cancer or doesn't, since the timescale for the exposure is too long, so unless the power is enough to literally burn my eyes out I don't anticipate that using the goggles occasionally is going to kill me, give me cancer and kill me, or cause me to go blind and kill me after I wander into the street. Use the minimum power necessary is always a good rule of thumb though.
So how about several watts of 400 THz radiation focused into your eyes?
@@noxi0us I'll bite once and exactly once; I"m assuming you're just trolling, but it's gonna depend how focused it is whether I care how much near red (IR) light gets into my eyes. I'm not Michael Reeves, so I don't shine lasers in my eyes, but you told me a "power" and that it's "focused." What is relevant and needed to assess the danger is the power density on the tissue and the frequency, the latter of which you did provide at least, but the former you have ommitted. You should go check out AvE's channel and his videos on welding glasses shielding from IR, visible, and UV for more on that topic with regard to the damage IR can do.
@@RobertResearchRadios Sorry for my tone, I was a bit annoyed there. And off by a few 100 Thz. I was referring to the visible light from the screens. I am just trying to understand what would make that 5.8 GHz radiation more dangerous to your eyes than visible light.
@@noxi0us The visible light from most screens doesn't hit your eyes with an energy density high enough to burn the tissue (rods and cones) like some lasers, but you're asking questions that ultimately require a more detailed analysis. The frequency is everything and all frequencies interact differently with the human body. I'm not an optics engineer, so the references I'm familiar with deal more with RF, but I'll provide those for you anyway. See the 2nd bullet in the "Articles" section of the following page on arrl.org for evaluating station exposure (which basically applies to all cases where you need to evaluate exposure from RF emissions): www.arrl.org/rf-exposure
I hope this helps, but you really need to find a different resource for IR, visible, and UV that describes how to make a similar evaluation. Please let me know if you find anything good.
I literally switched to 1200mw yesterday and flew for the first time today and was searching for this answer... Joshua reads my mind I swear
Very nice video Joshua - I like your way of explaining very much - thanks for your work...
Thank you Joshua, it's always a pleasure to watch your vids... About RF irradiation I prefer to be on the safe side, I'm flying in SRRC mode not in FCC mode... in this mode you have full power on the Air unit as FCC (30 dBm) but way less transmitting power on the Googles 19 dBm (0.0794W) instead of 30 dBm (1W) this has the same range as FCC and works perfect for me... "SRRC mode has less chanels available than on FCC mode but I don't care where I'm flying". I'm using the
Video Aerial Systems
Cyclops V2 LHCP antenna on my googles to have event less RF power going in my head's direction... - see DJI data sheet for more information on SRRC mode. (note: SRRC mode must only be used if it is complying with your local regulations). ENJOY, BE SAFE, WEAR A MASK OR DJI GOOGLES IN SRRC MODE ;-)
do you know if i can make this change to srrc mode on the googles 2 , as i understand the mode is auto selected according to the region the system detect your at.
Before DJI FPV goggles - Joshua Bardwell no grey hair.
After DJI FPV goggles released - Joshua Bardwell grey hair.
Coincidence? I THINK NOT!
As soon as I hit play I thought, “He’s just going to talk about the difference between ionizing and non-ionizing radiation”, not even a minute in that is exactly what he does.
Just because we are talking about non-ionizing radiation doesn’t make them safe.
Nice video and your heart was in the right place, but I still think they’re dangerous.
Non ionizing radiation is unsafe at high intensities but the point is the intensity of this radiation is low and the time of exposure is low so the risk is also low.
@@JoshuaBardwell
I understand “the point”, you can hear the same thing said from a million other videos about the safety factor of electronics radiation in general.
Again, I know you meant well here and that you’re expressing your opinion; but you’re not really telling anyone anything about the risks of these goggles.
You have no scientific data on the subject. Yes you can say they emit non-ionizing radiation and that they are low power (1 watt in your case) but they are indeed too close to the brain (DJI Goggles in particular).
For example, might they induce an acoustic neuroma? What effects do they have on the inner ear and say tinnitus? Can they cause headaches? I could go on and on... You’re generalizing and not addressing a lot of other concerns that aren’t directly to related to cancer. So this discussion goes far beyond ionizing and non-ionizing radiation and the fact that the goggles are the latter and therefore should be implied as safe.
Thank you for addressing this! It has been on my head, pun intended. I don't know much about the subject and I feel that my fpv set up has been causing me eye and head issues like extreme headaches and double vision. I have stopped flying fpv and the headaches and vision problem has gone away. I truly love the hobby but feel afraid to get back into it because of what I think it has caused.
Thanks again for the video, and I would love any feedback from anybody.
Stay safe!
Lost of people experience headaches, but I think it's more because our brains have a hard time rectifying the fact that were seeing upside down, but our brain/body isn't also upside down. I dont get headaches but sometimes usually around dusk after doing some freestyle I'll come back flying level/straight, but I feel like I'm flying sideways. If I start to fly in a slalom pattern, and move my head to match my problem goes away. My wife cant handle it at all, nausea, and starts to get a headache just watching a monitor. This is just my opinion I've formed from personal experience, and I dont feel I explained it very well either. I hope you can figure out something to help you fly. I talked to a guy that takes sea sickness pills b4 flying. Good luck
Hey. Just thought I'd mention that some people are sensitive to the double display system in goggles like DJI's. They are sensitive to focal changes. Even when not in need of glasses. For them it's better to use goggles with one big lens/display.
Very Good Topic ! I feel a little heat and pressure after flying with the new avata google ! I purchased those shields that redirect the signal to the front no need hit my face ! You think the plastic with cooper foil protect your face a little !
My father was a microwave tec for the DOD. Your spot on Josh
My dad didn't fix microwave ovens but with a microwave and a metal detector maybe you could build a jam in ng unit maybe. He helped make sure there was no interference when we launch nukes I thknk
I would assume as long as we all wear large tin foil hats while we fly we're good. Might increase reception too haha
I would buy DJI goggles if it would come pre-installed with analog module and a large tin foil hat
Hey, another MC around here! 😳
or create a Faraday cage and you're fucked 🤣
Copper hat and boost signal
I have watched probably hundreds of your videos without subscribing. But when that baby told me, I just want him to make it through college. Subbed
Thanks for this video, I had researched this on my own and had decided that it was safe, but still had some concerns.
I dont even notice anymore when I click your videos I click like instantly 😮
Thanks for putting this out. Been asked this question as well, ppl are sometimes really hypochondric about radiation in general.
Greeets, Mario
Everytime I'm watching your video.i learn something..😊😊😊
I did industrial radiography for a bit... interesting not only do you get radiation from the sun it's also naturally occurring in the ground... for fun get a survey meter (geiger counter) and walk in a field of grass or rocky area...
SssshhhT you are scaring people...
earth sends out frequencies of 7.8 herts.
Oops! now I did it myself...
vVeekendz but why add bad 💩 dji goggles
vVeekendz , why would you think walking in a rocky are would be fun lol.
Well, you're radiating ionizing radiation as well, every human. We have potassium in our body, most of it is stable Potassium 39, but there is also Potassium 40 which is unstable and radioactive. That why bananas are more radioactive than other fruits as well.
The point is that small doses of ionizing radiaton aren't bad, they are even healthy for us, but they start getting harmfull when the dose is above ,,natural''.
@Galaxy Studio im interested where you got the information that small amounts of radiation is healthy? I have also heard this claim from radioactive “healing” mineshafts.
If Ionizing radiation causes DNA damage shouldn’t it be better to minimize it all the way?
Maximum transmit power on cell phones are 2 watts and the reason is that we hold the phone so close to the head. The very old cell phones (brick type) where transmitting on around 12 watts and that's why the antenna had to be outside of the car.
Thanks for educating us all
I want to play a game...
take a shot for every "Ionizing radiation".
... good luck.
You're like my drone science teacher. It's awesome lol. Thanks!
fusion module and the digiadapter lookin sweet on the dji goggles
you are the doctor!!!!!
Very interesting, as I am studying for my Technician class license for FPV, and I covered this subject just yesterday. By the way, have you ever heard of anyone using FPV being contacted by the FCC for not having a license when using their FPV?
What class do they have for fpv? I'm studying for part 107 myself. My understanding is if your licensed under part 107 flying fpv is illegal, even with a spotter, because the pilot has to maintain LOS.
Apple iPhone manual: says that you should not hold the the phone directly against your ear or cheek because that would be dangerous. You should use earphones or the speaker instead. DJI manual: not commenting on health concerns. 1W is about the output of a cellphone. I guess the DJ FPV system is probably not 100% safe to use. JUST MY THOUGHTS.
Were all going to die, so I'm going to enjoy myself, and throw my I phone away so I can fly twice as much fpv😂🤣😅😂😅
@@RCOverKill this is what i think too, FPV is more important than a stupid cellphone, i keep my phone in airplane mode most of the time and this is what every FPV pilot should do, whilst enjoying flying without RF interference
Oh man I'm gonna learn something scary today
They say different things about cellphone and wifi radiations. Whatever it is, if it gives you headache, then don't use it.
Some people convinced MSG is evil will get a headache from what they think has it, but won't from what definitely does...
S Grim , by any chance do you also drive on the same side of your vehicle as you hold your phone to your face? If so, it could be the sunlight on that side of your face .
S Grim , how about when you’re driving, the sun is going to be coming in on you from the side of the car that you’re driving on. I was a delivery driver, here in Australia and the right side of my face was more suntanned than my left.
S Grim , that’s not good to hear, I always use the loudspeaker on my phone because of the possibility of damage. Maybe I was doing the right thing after all.
Oh damn mr bardwell is a science teacher today 😂😂 (I've probably learnt more science here than doing my school work today)
Same lol
@@FailsafeFPV haha
Word same haha
thank you josh. very helpfull. I watched it twice.
Can I use avata without Google’s?
It is not about energy, it is about wavelength...
Good timing. I pre-ordered a set and have been curious about this. Not too concerned,but this information makes me even less so. Thanks!
I think you don't include the frequency in your calculation. Sunlight (Yellow) is around 100THz, here we are talking about 5.8Ghz. Penetration is higher, the lower the frequency is. I agree, the penetration of 700mW at 5.8GHz in skin is very small, in the Range of a few tens of a mm. But the electric signals inside nerves are also very small. And especially the surface of your eye balls is also a point of risk. And the Antennas of the DJI System is very close to them.
Don't get me wrong, I also own the DJI System, and I love it. Personally I think it's the greatest invention since sliced bread. But it's never wrong to at least ask such question. A cheap microwave with 500W heats up your food in a very few minutes. I wear my goggles for 45mins when flying a wing. We should at least be aware that this might be not the best for some parts of the body :-)
Thanks for your great movies, I appreciate your work. And because this doesn't convert to food, I will set up patreon the next days :-)
@bardwell This is exactly what i was thinking. If you look at en.wikipedia.org/wiki/Non-ionizing_radiation (not the best source)
You can see that the Biological effects on higher frequency resulting in heating up the body tissue. Also with a mobile phone the values are set to fluctuates to minimize the risk, and even with phones they are stil not certain if its safe. With the dji goggles its continuously outputting the same power, we never know how safe it will be on the long run.
Ok, I just read the specs. The controller, air unit, and goggles all have an output power of
Have you ever taken a look at the Cine-Bird FPV by stan-fpv? Its a frame designed for the insta360 one r. Apparently it makes the quad look invisible, but no one has ever done a vid on it besides stan himself so I'm a little sketched out.
Never thought I'd learn about ionizing vs. Non-ionizing radiation in an FPV video! Super informative, loved it!
Excellent video JB
Thanks for explanation. It is good to know, that it is not a health concern to factory lock goggles signal strength.
I just wear a tin foil hat with my DJI goggles, problem solved.
"Big Radiation" lol 😂👏🏻
This would be great for winter FPV. Maybe less so for summer FPV.
Thanks JB
No matter what you said, some would disagree. But I think you're right, compared to the sun, way less radiation in a video signal.
thanks for the clarification
I definitely learned something today. Thanks!
Hey josh nice video as allways, thans for this...🙏🏽🙂
Can you make a vid. About the new setup on your dji goggles pleace.. that will be awesome.. thx for youre vids it helps me a looot...👌🏼
Well...if all else fails just build a full bridge rectifier for the eyeballs. No Problem. Good Stuff man 😁👍
Instructions unclear, stuck 1N4148s in eyes, now cannot see, send help
@@tehcmn 🤘🤣
WHAT is that on your DJI goggles? I don't see a video uploaded about it...and I WANT IT!!! LOL Seriously, can you please provide a link or who makes this mod? I like the looks of it better than it just sitting on the side of the goggles and it looks to be easier to do than the iflight (where you dismantle your goggles to bits!). OK, what is it and WHERE did you get it! Thank you Joshua!!
I could've got DJI and still can, BUT..
1. 2x heavier unmodded.
2. No small drones with cheap batteries for playing for long periods with many batteries.
3. Very expensive drones you can't relax with properly.
4. They have higher latency.
5. Image cuts to black immediately making it more likely to lose or crash expensive drone.
6. Only 2 cameras actually look O.K. (i own 4k TV's)
7. Dji is and always has been just a flying camera company for photographers.
8. Stress, worry, devastation, ect.
9. I'm not stupid.
Well put Josh a well worded video.
Yes my goggles makes me shoot red laser beam to get my quad out of stuck tree limb.... 😝😀🤣. Hahaha
Whether or not it adds to the "total" exposure levels a human body is put through that could potentially be harmful in ways yet to be known is MUCH less a concern than something that is known, such as fatigue and stress and headaches from over exposure to small areas of bright light. These effects are often immediately noticeable for a lot of people. I think I'll worry more about taking frequent breaks than whether or not I'll develop brain cancer in 30 years.
That is seriously one cute baby. congrats man
Joshua, I think don't my goggles had have on effect on any me. Thnaks for the artickkle.
Thanks for explaining a important non thought of occurence
I have a radioactive Cesium 137 pellet in my possession at this very second. It's part of a tool I'm using for construction inspection (I'm on lunch break). I went through safety classes, wear a dosimeter, and have a Geiger counter. Cell phones, wifi, radio, 5G cell towers, none of these are ionizing radiation, and none them set off the Geiger counter more than ambient. Things that do measurably set off the Geiger counter include CS 137, bananas, and Grandma's "Good" dinner plates. Hell, your own body emits more ionizing radiation than DJI goggles do.
LOL! Fiestaware Red! LOLOLOL
In radio Communications we warn not to use 1W sending power near the head for a greater amount of time... let alone more than that...
Thanks Josh, once again some good Info. Cute baby!!!
Looking cool with that beard bardwell
Love the t shirt. It is drones and rc aircraft in a nut shell.
well this is a non- ionizing radiation- that means it has no short term effects.
mm wave is what we are talking about , if you study more , it has been considered notorious for a more silent yet prolonged effect. so what are we talking about?
a non ionizing radiation if exposed for a longer amount of time like few hours or more causes skin irritation as we all know 5.8ghz frequency is not penetrable but absorbable.
so when in close proximity or under concentrated exposure and/or continuous exposure causes skin irritation. but prolonged exposure of more than 10-15 years has shown
1. development of cataract at a younger age.
2. increased tendencies of cluster headache and increased incidences.
3. retinal layer tear, especially in between inner plexiform and ganglion cell layer.
4.dendritic cell death of neuron due to mm wave is under query but a possibility .
5. also an immediate effect that is going to get noted is dry eyes.
well these are clinical effects of mm waves above 5400 mhz
but lets talk about OUR HOBBY.
our batteries last 5 mins. we fly max 8 packs a day . 1-2 days a week. if you are a race pilot you are spending may be 4-5 days a week.
considering this into context.
non ionizing radiation shouldnot affect a hobbyist . but prevention is better than cure.
so precautions
1. unplug your goggles after the pack.
2. rest yourself after every pack.
3. look for signs like what we call it as floaters- (tiny specks that seems to drift around your field of vision ) usually noted when you cough excessively or after you vomit 3-4 times.
4. hydration is the key to all problems.
5. flying for more than 3hrs with breaks inbetween , have a small sugar candy . our brain survives on glucose or polysaccharides .
6. cluster headache/ tension headache is mostly due to hypertension . but mm waves or frequency 5400 mhz mimics a headache thats similar to cluster headache.if you get while you fly. land your craft , rest hydrate and then head home.
7 . stay in lower band of frequency in 5.8ghz radio spectrum
MYTH BUSTER - NO YOU WILL NOT GET CANCER
NO, YOU WILL NOT GET CATARACT
YES - DRYNESS OF EYE /REDNESS NOT DUE TO MM WAVE radiation BUT decreases blink rate.
so plug in and fly.
If anything is going to cause dry eyes and headaches, it is the fan or misaligned lenses. Not 1 watt of 5.8 GHz radiation. Btw what is that compared to several watts of 400 THz radiation concentrated directly to your eyes. (visible light from the screens)
great info DUDE!
I am Industrial Radiographer by trade. I use ionizing radiation on a daily basis. I literally absorb hundreds of times more radiation, in ONE DAY, than you could ever be exposed to, by any electronic device, used in a year, that is sold to the general public. People are just scared of what they don’t understand. Furthermore, your body naturally heals it’s self after exposure. ALL electronic devices sold to the general public are not capable of harming you in any way(other than electrical shock). Repeatedly sunburning is much more dangerous to your health then any electronic device.
Thank you for this scientific explanation of this topic.
I was worried about radiation from devices but now i am not
Again does wifi damage you, checking ur hairline I will so.. lol
Omg your title scared me because I have that same adapter on my dji and thought before I viewed this that there was something majoring wrong
IF THE GOGGLES DONT KILL US. 5G WILL. (insert drunk emoji)
Drink a shot every time Joshua sais "ionizing radiation" or "non ionizing radiation"... You probably don't survive till this video ends 😂
It's been shown scientifically that FPV goggles can effect your beard hair, turning it white/grey from your natural colour, that or we're all getting older.........I'm blaming my FPV goggles for my white hair 🤔😂😂
Steele, Charpu, Drib.. All unnatural hair colours.. Just sayin' :P
I agree. Thank you! Same goes for 5G!
Clickbaity clickbait. Yet still informative. Thanks JB
What analog mod are you using for the DJI goggles in this video? Looks like that's a nice one that doesn't require taking anything apart.
The people who say that radio waves are bad for you should get a stage because the visible light from the spotlight probably heats you up more than the thing they are complaining about
Hello joshua ! Great video, do you plan on reviewing the dji goggles with this new analog mod ? It would be great to test the latency and all of that stuff. Have a great day!
Thumbs up for the cute baby...and the very well presented information.
FPV goggles are receiving devices, they don't transmit very much, other than some commands occasionally to the far more serious transmitter on the drone. But I would be leery of strapping an air unit to the top of my head. The power of electromagnetic radiation falls off exponentially from the source, meaning that if you put the source extremely close to your body it represents a far greater risk than a source at a distance, even a short one. All forms of electromagnetic radiation (Gamma/EMF/Light) can ionize. There were cases of the old Nokia cell phones giving people tumors in the exact shape of the phones transmitter. Cell phone power has actually been capped in the past because of this issue. The effects of this tend to get played down by the communication industry. But really, the goggles shouldn't be a problem. How often do they really transmit anything? It's the drone itself that transmits the massive amount of information.
The DJI goggles are not just receiving devices. They also transmit.
Very interesting....thanks
good content mr !
But how long will my DJI goggles take to reheat my coffee?
Good call, cup of coffee right before flying so half way through the pack you have to land and go shit..lol
Ill def keep watchin..
Always thought about this, but ignorance sometimes gives more happiness! Not more time never the less...
Hello Joshua,
It is clear, that ionizing radiation can kick-off electrons from the atoms of human body, thus can be dangerous if the dose is high enough. It is also clear, radiations from telecommunication systems (e.g. these DJI googles) or power lines are not ionizing radiations, and leaving the atoms of human body unaltered.
However this doesn't directly conclude, electromagnetic-radiation at these frequencies and amplitudes are guaranteed to be harmless to us. It does interact with our atoms (and cells) through the electric-field and magnetic-field. _It has effect on us, for sure._ Does it mean anything else other than a negligible heat effect? Does it influence our cells or organs in a harmful way? This is the question, and a question to biologist mainly, and as far as I know, today we don't have a clear answer for that.
That's why most probably, we have health-limits for all of these emissions (power lines, broadcast, telecommunication, etc). I think we know that we don't know the effect-mechanism, and we want to be on the safe side, by limiting the exposure. Once I took a look into these limit-values, and found, they are really different at least between Germany and Hungary. This also indicates to me, there's no solid scientific base for determining these, but authorities set limits for the reasons I wrote.
I personally would never be afraid of DJI googles, or cell-phones, or living close to power lines, but not because I'm sure they are harmless, but because for me the likelihood of them being harmful is tolerable. :)
We do have health limits for this type of radiation, and the DJI goggles are well below those limits.
Why do cell phone manufacturers warn against usage close to your head or agaisnt putting the phone in your pocket? Non ionizing radiation damaged tissue when the transmitter is close to the tissue for long periods of time. All wireless devices should be used in moderation. Speaker phone and wired earbuds are preferred to putting the phone to your head.
That baby cute AF!
I'm a diagnostic radiographer with a BSc(Hons), I work with ionizing radiation for a living and could not have explained this better. Also, I learnt something today!
You makes me smile bro. 🤣🤣🤣🤣🤣 I've got a lot of xray of each year. Extreme sports.... so I think my dji goggles can't beat that.🖖🖖🖖🤏🙌
I notice your using the digidapter there. Looking forward to that review on those. Was looking at them my self but concerned about the normal rapid fire cover sticking out to much. Plus £45 is a tad expensive for it not to come without their own cover to it