4:37 should have used this opportunity to say "Im Joshua Stairwell, you're gonna learn something today"
@KrotowX3 жыл бұрын
... you're gonna walk down and up at today.
@JoshuaBardwell4 жыл бұрын
This test has both Crossfire and Ghost in their high-frequency/low-latency "racing" modes. In this mode, Crossfire uses FSK technology not LoRa, due to limited size of the 900 MHz band. This explains why it has worse penetration than Ghost in this test. FSK has less penetration, mW for mW, than LoRa. In 50 Hz mode, where both systems use LoRa, Crossfire would be expected to have an advantage since it has lower frequency and can go to a higher output power. The vTX was probably not actually outputting 800 mW because it was not in ariflow from the props. But I still am confident that video would have been lost at these distances. But the question of whether the control link would outrun video might still not be settled.
@md.m.83724 жыл бұрын
Makes sense, thanks JB
@aviphysics4 жыл бұрын
Super impressed with what Ghost seems to be doing (and guessing Flysky's new system as well). That said, if I already have CF, is there a solid reason to switch? For racing, does range even matter? I would figure that most venues are setup for normal FRSky 2.4ghz. Also wonder if telemetry matters for racing, if you are going to have goggles on. Seems like lots of people even just use XM+ Rx for racing, so they don't even have telemetry at all. In regards to number of users that can be in the air, aren't either mostly limited by the 5.8ghz video bandwidth? Seems like there are only about six channel/band combinations that can be used without interference.
@aviphysics4 жыл бұрын
BTW, as a fixed wing pilot, I would really love to see ghost have something like the CF Nano, that can support 6 PWM channels without a FC. That is still a major selling point for CF for me. Seems like no one else has anything close to that it a Nano Rx form factor.
@calumrichings79674 жыл бұрын
@@aviphysics at release the ghost atto rx has 4pwm channels, it's not 6, but should be enough for simple planes/wings. Coming soon is a smaller rx, which probably doesn't have pwm. Worth asking immersion rc to build what you're looking for.
@pengiswe4 жыл бұрын
I'm also thinking that 2.4ghz might have more clean reflections in that environment, combined with wider band, made the signal enter the staircase straight, but reflected down. If so, that would probably apply to other places like bandos too. Higher frequencies penetrate less, but it also requires smaller holes to enter.
@TheDro4 жыл бұрын
Bardwells new work out routine, test vtx at local hotel for leg day
@witblitsfpv12654 жыл бұрын
I'm Joshua Bardwell and I'm going to get a lot of excercise today. 😂 Great video. 🖒
@SkyCandyVisuals4 жыл бұрын
😅
@TuccoBenedicto4 жыл бұрын
Would have been interesting to see how the dji tx and air unit would have faired in this test too.
@MrStevegibb4 жыл бұрын
This a good test for flying in areas with obstructions and also highish RF interference. That hotel would have had a shit ton of 2.4ghz traffic and maybe some noise on the 900hz band its hard to know without a spectrum analyzer. Its incredibly impressive that ghost did that well in a noisy 2.4ghz situation like that. But a real world test would be flying in a bando without any rf noise apart from other drones. The real stickler between ghost and crossfire seems to be the cost of receivers the system with cheapest full range receivers would be the best choice considering how many drones we pilots seem to acquire.
@rainmain4 жыл бұрын
Exactly. I don‘t seem to see the benefits of ghost over crsf. Ghost seems to be more expensive and less tested, sticking to crsf for now.
@crackafpv4 жыл бұрын
Bro tell me about it, almost up to 15 running quads.. smh 🤦♂️ Addictive? Nah.. 😅
@MachineManGabb4 жыл бұрын
Joshua Stairwell
@pkvillager4 жыл бұрын
I'm a crossfire user and I think this was a good test in the context provided. Looking forward to more even though I wont ever change, crossfire has never failed me and CRSFshot is awesome.
@gozillasin99344 жыл бұрын
Thank you for the demonstration! this is what i was wating for!
@fcass4 жыл бұрын
You swiped my comment, no swiping. Thanks Joshua.
@Retset4 жыл бұрын
I have only just bought Crossfire. Only then for 2 quads that I want to be able to fly behind a few trees etc ... nothing long range. Even so, with no intention of buying Ghost, I find this fascinating - can't believe they have managed this with 2.4!!
@DVJiMATT4 жыл бұрын
The thing I'm concerned most about is why didnt you just unplug the battery once you got to the bottom of the stairs and take the elevator back up to the 8th floor?
@Perceivedshift4 жыл бұрын
JB, you are a treasure to the hobby, your videos keep getting better...even while on the road.
@fpvnme48454 жыл бұрын
well done immersion RC .. delighted for your hard work to bring this out and thanks JB
@terminsane4 жыл бұрын
I really like these test / comparison videos. I'd love to see more of this, especilly with motors and batteries
@someoneelse84164 жыл бұрын
In my cellular experience 850 mhz was used for long distance especially rural 1.9 ghz is what penetrated building and especially elevators but had lower distance less than 50 % of 850 mhz.
@burtpanzer Жыл бұрын
Hadn't expected any to fair well in a stairwell, Bardwell... good one!
@rickc71514 жыл бұрын
Dude that immortal t looks like a dog chewed on it!
@avgvstvs963 жыл бұрын
More like props but yeah lol
@the_og_scootkentwest74954 жыл бұрын
Didn't realize how much I missed your on the road hotel room videos until you dropped another one. Love the rawness of them.
@gozillasin99344 жыл бұрын
I hope ImmersionRC will release Ghost for Frsky Lite module version. I must buy this!
@fpvlive4 жыл бұрын
I'm not sure if I saw such module on a render, but they will come up with one for sure..
@kral59324 жыл бұрын
They are releasing one, just not out yet
@sketchpv30804 жыл бұрын
Most definitely! I’ll drop my R9M Lite Pro if so.
@crackafpv4 жыл бұрын
Get the adapter from BG. It’s 10$. Ordered it last night. Just waiting. Just got crossfire and next payday I’ll order Ghost. Can’t wait to see how well it works with my ORQA!! 🙌
@crackafpv4 жыл бұрын
Yes they will have a small module for xlite just not as powerful I’d expect and only one antenna vs two.
@mazyarahmadi54243 жыл бұрын
Amazing video. Hmm definitely interesting. Wonder how it compares to TBS Tracer.
@timurmukhamedyanov49374 жыл бұрын
It also depends on different bands pollution in your hotel. 2.4 might be poluted even worse if there's a WiFi network working in the hotel.
@christophelecomte35114 жыл бұрын
I'm Joshua Bardwell and I am going to melt your credit card today! Well thanks Joshua for the test and for making it fun as usual. Looks like the Ghost is pretty good and might be the solution for us pilots living in Europe forced to fly on extremely narrow 866mhz. That kind of performance on 2.4Ghz is just a dream come true, so I pre-ordered. And what's with the xfire guys going like "I got xfire, I am happy and I won't be switching no matter what". Do they feel like threatened or something? What's the deal with that? Anyhow congratulations and thank you to ImmersionRC for this apparently great and very promising product.
@smokeoutfpv41324 жыл бұрын
Look at the state of that immortal T OMG
@SiNFPVGUAM4 жыл бұрын
Security watching you trying to figure out what kinda device you brought into the stairwell...lol😂😅
@DavidReynolds-kr6yh4 жыл бұрын
SiN FPV 711313101S , bomb squad comes running in with a couple of dozen armed swat team, nothing to see.
@jalkingforjesus4 жыл бұрын
That immortal T antenna looks like it has kissed a few props. Next time you test can you please compare antennas of similar state of disrepair? Pretty amazing results nonetheless and I look forward to the rest of your testing. Thank you as always JB.
@JoshuaBardwell4 жыл бұрын
Fair point. But one of the specific benefits of 2.4 GHz is smaller and more durable antennas. I never met somebody whose Immortal T was actually pristine. Not after a few flights. So maybe the test is more realistic than it seems.
@jalkingforjesus4 жыл бұрын
@@JoshuaBardwell I must be OCD because my antennae are all pristine, regardless of wavelength (sounds suss for a KZfaq comment).
@feelfreefpv4 жыл бұрын
I was hoping you would meet someone who demanded you whispered an explaination of what you where up to in that stair with that strange apparatus. :D
@m3fpv2534 жыл бұрын
your immortal t looked so sad lol
@Gosuminer4 жыл бұрын
Also, these bends in the Immortal T will cost a lot of dbs.
@O.L.D_RC3 жыл бұрын
Ok, I watched. My perspective on it is simple. Unless your last name is Skywalker, you're not likely to outfly your link unless you're flying from or in a bunker. I hope to do a blast through the forests near my home soon now that the foliage is thin and I can set up both.
@Marshcar4 жыл бұрын
“We won’t be in a penetration situation if we go outside”
@johnnydepp41144 жыл бұрын
hahaha
@your2nd3 жыл бұрын
Thanks Joshua , I'm new to all this and you have taught me so much. I was going to buy Crossfire to pair on a Radiomaster but now I have watched your videos on Ghost and other reading up on it , I will be buying Ghost, there is so much I like about it.
@raoulwoodruffbecker15183 жыл бұрын
Same for me
@glen74634 жыл бұрын
You say it’s not a perfect controlled test but it’s impossible to get a clean test with the amount of rf interference across the spectrum you need to test it in a Faraday cage or a lead lined bando . Use a good spectrum analyser to make sure your broadcast frequency is clear and it’s as good as can be. Always great videos
@Flamenawer4 жыл бұрын
Joshua is excited because he knows what Lora is , He knows what is happening here, it is just the Lora technology and bandwidth, here is the new king, and where TBS and Frsky will go, late. With the free bands available, GHOST is just the only way to go, flysky know it too
@mitchellroberts79544 жыл бұрын
TBS is already there? These are essentially equivalent systems if you're not trying to fly 30mi+. Crossfire uses LORA. Take a look at the RF chips they use some time if you want to learn what they actually have from a technical perspective.
@Flamenawer4 жыл бұрын
@@mitchellroberts7954 CF don't use Lora under 100mw, GHOST do it at full range, in EU the 868mhz band power limit is 100mW, 25mW for telemetry, CF use LORA up 150mW. You can use GHOST with LORA, CF with LORA is illegal in EU, somebody is selling you a bike, TBS just miss inform you and you can get a £5000 fine is you. TBS has good gear and is selling you smoke, because you are not allowed to use it,shit of company, that's it. SO GHOST in legal conditions, has lora, more range, more penetration, less latency, less price in receivers and modules,less interference, more range of telemetry. That's is, TBS=Smoke
@SkyCandyVisuals4 жыл бұрын
I would of liked to see your normal frsky link as well on a similar wattage output. Maybe u can include it on the next test😉 btw your so lucky to have this stuff to test before everyone else. Im jelly
@Abhilashkp4 жыл бұрын
You are putting lot of effort to make videos,, your breathing says that.. thanks Joshua.🤩
@The0nionKnight4 жыл бұрын
He's getting in some cardio
@sligit4 жыл бұрын
I was one of the people wondering out loud whether in general the apparent penetration we see with these systems may often actually be bouncing along a less obstructed path. I just want to make clear that I don't think anyone was actually criticising the test, it was a more general thought. You could ask the same question about this test. Are the waves traveling through the possibly easier to penetrate doors, or going directly through layers of cinderblock? I don't claim to know the answer, I'm just curious. Either way both Ghost and Crossfire are great by the looks of it. Incidentally, both Crossfire and R9 are built on LoRa chips. Are they not actually using LoRa for some reason? Maybe a different flavour of LoRa?
@Beeks813 жыл бұрын
I always like these "imperfect" tests, because the real world is never perfect and all anyone can ever do is report the result they got in their particular situation. Good testing! I'm a little unnerved by how fast the video dropped out. I'd be the guy with the OP setup and no business using it, because i'd fear loss of signal on a quad i don't want to replace.
@changeagent2284 жыл бұрын
The new Crossfire micro module firmware comes out any day now and enables 1000mW. That's some juicy budget penetration power right there.
@changeagent2284 жыл бұрын
@Russell Phelan Yes it's great 👍 😀. The Tango 2 is only 500mW on next V3 revision board. Trappy updated the radio on the new micro to compete with R9.
@mhoovair894 жыл бұрын
Change Agent it’s not 1000mW
@mhoovair894 жыл бұрын
Change Agent tango2 v3 PCB has EXACT same interanals as micro tx v2
@christophergiacomo89094 жыл бұрын
You should fire up the rf explorer before the test to compare noise levels in the hotel. With all those WiFi and Bluetooth signals going on, ghost had to fight a lot harder
@changeagent2284 жыл бұрын
@@mhoovair89 m.kzfaq.info/get/bejne/rKeFg6-gksyqk58.html lol 😆 It sure is. Please research before correcting people to save embarrassment. Not being a jerk just saying. 👍 Edit: Hoov deleted a comment above with a false correction.
@budokaiboy4 жыл бұрын
I would really like to see you review the FlySky FRM302 module.
@IanF-FPV4 жыл бұрын
He is going to need a FlySky Paladin or NV14 to properly review it. Outside of those radios you will have to run the module in PPM mode. So no telemetry like LQ or RSSI. Hopefully FlySky and the OpenTx devs will change this.
@AGILISFPV4 жыл бұрын
Can't wait for more vids on this! Excited to see the results. I'm pretty much sold on ghost though. Happy to support a company willing to go after the giant gorilla of the industry with these types of results.
@mitchellroberts79544 жыл бұрын
TBS isn't a giant gorilla lol they're tiny. Going after a giant gorilla would be going after FrSky.
@DutchCommando4 жыл бұрын
@@mitchellroberts7954 IN THIS INDUSTRY... TBS is a big player in our hobbies industry. and frsky? well, nope.. tbs sells more stuff than frsky.. tbs has: transmitters, receivers transmitter modules, antennas, planes etc etc etc etc.. frsky? transmitters (in which, in the fpv world, are tbs products shoved in the jr bay...) modules and receivers... ow.. and a small selection of antennas.. btw. i do not own a single tbs product, all my control link is frsky (QX7, R9, R9mm, r-xsr and xm+) i am no tbs fanboy, i hate trappy, but truth need to be told..
@JimB404 жыл бұрын
Truth is when you show numbers otherwise is just opinion
@mitchellroberts79544 жыл бұрын
@@DutchCommando Of course this depends on your definition of "giant" but I've never seen someone call a company giant due to the number of their products, it's based on gross sales. Well, I've never seen it until your comment. I'd be surprised if TBS gross sales are more than $2m per year. FrSky is likely closer to $100m but like Robert said, until someone posts actual numbers it's just opinion. Edit: FrSky annual sales per their website are around $15mil for 2018. Seems low to me. "FrSky owns more than 4000 square meters of office area, about 8500 square meters of production plant with high-end R&D and production equipment, and staffs over 180 employees in its 9 years of development. Facing the severe situation of international trade, the annual sales of the 2018 year reached 105 million in RMB Yuan." Do you really think TBS has anywhere near 180 employees and 12,500 meters^2 of infrastructure?
@skirmich4 жыл бұрын
Also being in a hotel perhaps the 2.4Ghz band was saturated due to the hotel wifi? Most bando scenarios wont be close to heavily wifi populated areas.
@JoshuaBardwell4 жыл бұрын
Realistically, the link needs to be able to perform in WiFi saturated areas.
@DutchCommando4 жыл бұрын
@@JoshuaBardwell yes, ghost should perform in 2.4 saturated areas, but a hotel is over saturated on 2.4... and has almost no 900mhz interference.. put the 900 system in an over saturated 900mhz environment to compare apples with apples.. but still, the ghost performs very, VERY well in this very difficult scenario.
@crazychange56354 жыл бұрын
Yes I do wanna find out in so intrig. It's so excited to see who wins.
@drkastenbrot4 жыл бұрын
Here is what I believe happened: By going to 100mw on ghost you went significantly above the noisefloor on top of the stairwell. Since 2.4 GHz reflects so much easier, it reflected its way all the way down the stairwell. I expect 2.4GHz to do better in bandos because it can use multipathing to its advantage.
@BlackPixxelDE4 жыл бұрын
Reflexion is not related to penetration. Reflexion of both systems won't be that different.
@drkastenbrot4 жыл бұрын
@@BlackPixxelDE Reflection is extremely different at different wavelenghts. Any conductive part of a surface larger than 6cm will reflect 2.4GHz, whereas crossfire requires almost 20cm. You can probably imagine that this means MUCH more reflections at 2.4GHz.
@BlackPixxelDE4 жыл бұрын
This is true, but a larger surface will not reflect both wavelength too differently. I just didn't want people to think that bad penetration = higher reflection
@drkastenbrot4 жыл бұрын
@@BlackPixxelDE That doesnt change the fact that 2.4GHz will get much more reflections. On long range connections this is a disadvantage, but in bandos it allows you to get reception in places that would otherwise be shielded, as the signal reflects and spreads throughout the building
@oneperspective86014 жыл бұрын
JB: hey guys I’m gonna head back to the hotel kinda tired. Also JB:
@phildawe71723 жыл бұрын
great test. be fascinated to see a simple showdown like this between Ghost and the dji fpv controller, also how rapid they reconnect after a fail-safe. crossfire is sometimes slow to reconnect
@ZEN43D4 жыл бұрын
Cant wait for the main test, keep up the good work. Safe traveling!
@RockTouching4 жыл бұрын
Excellent test, loved the camera showing the rssi on the ghost
@jasonockerjsj4 жыл бұрын
I learned something today! Thank You!
@NormanLedoyen4 жыл бұрын
I really like the enthusiasm you exude with your love of your hobby/work. Keep it up and by the way the information is well accepted for the Ghost.
@carlgill59464 жыл бұрын
Always a pleasure watching you work Joshua. Iv only ever ran the DJI controller and digital but this is still very interesting to me. What I dont understand is though is why don't they focus more on making analog video more solid in situations like that than the control link? Obviously there is a lot of improvement that can be made before the video link is as good as control ya know... Thanks for another great video man!
@michaelpetale68724 жыл бұрын
Well done JB!..:) good workout too!
@hmarquestt4 жыл бұрын
I don't understand why people that is interested to buy long range module would buy another thing that weren't crossfire kkkkk your test will clarify everything! Tks!
@tjburke794 жыл бұрын
Long range and ghost should not be used in the same sentence
@Lupinixx4 жыл бұрын
I'd say ghost is in a bit of a disadvantage here, as the hotel is gonna have 2.4Ghz routers all over the palce to accomodate wifi for every room. I'm not sure what stuff is on 900mhz, but my guess is that it is a lot less noisy on that band.
@mitchellroberts79544 жыл бұрын
You'd be surprised how much of the 900mhz band is used in big cities like that.
@rancorbob2 жыл бұрын
"no my hotel is not a bando" lmao
@c_labb92474 жыл бұрын
You covered it at the end, I couldn’t fly like that. Still had controls but no video. Like a kid after the spin running for the piñata.
@josh81064 жыл бұрын
Very impressive tech. A hotel is the worst case scenario for ghost. 2.4 ghz wifi access points everywhere.
@brelfpv14374 жыл бұрын
But unless you're in a certain place, that's a problem that could happen more or less anywhere. Nonetheless, though, it's too much of a test to fly with Mavic bundled in, for example.
@OkieProductions4 жыл бұрын
low frequency= long range less data, high frequency=less range more data. Some old school fixed wing pilots used to get a ham license and make their plane go further with better frequency and more powerful radios.
@djwilson486254 жыл бұрын
Are you gonna test their 433mhz version? I'm not sure if it's gonna be sold in the USA, but I'd be interested in seeing it vs crossfire as well.
@jchris_fpv4 жыл бұрын
Whatever system we choose, should we really care since we loose the video link much faster?
@GarethSeymour4 жыл бұрын
Thank you JB! Looking forward to the next one!
@dauntlessfpv4 жыл бұрын
I can’t believe ghost beat Joshua Bardwell at a range test
@carlharrison36374 жыл бұрын
Those firedoors are pretty thick!
@Claymore_834 жыл бұрын
"I won't be in a penetration situation if I go outside" - Joshua Bardwell
@ScrapHeapFPV4 жыл бұрын
I'm still awaiting open air range tests please wing pilots need that
@igormisic93954 жыл бұрын
kzfaq.info/get/bejne/q59nbNeg3pnQZXk.html
@aviphysics4 жыл бұрын
Would like to see that from Painless360
@mitchellroberts79544 жыл бұрын
I'll test it 20 miles out if someone wants to let me borrow one lol Bardwell isn't the guy who will do a 30 mile range test - just not his area of expertise.
@archer49223 жыл бұрын
I know I’ve said this a bunch of times but I swear everytime I’m watching a Bardwell vid, he and I are wearing the same damn shirt. 🤣. I know the vid is a month or so old but I haven’t had a chance to watch it till today and just so happen to have my Kwadbox Vanover shirt on. Lmao 🤣
@travisSimon3654 жыл бұрын
As a DJI user who has absolutely no skin in the game and doesn't really care . . . Ghost seems like a really good solution, probably on par with Crossfire. If you have a prejudice and really want to go with one or the other, then you should probably do that and be happy. Otherwise, you might decide on cost - whichever is cheaper (I honestly don't know the price differences)? However, I would still be very weary for proper long-range flying. Crossfire has a proven record and good enough isn't necessarily 'good enough' when you will loose your quad if it's not. Is Ghost even trying to compete in the long-range market? I dunno, but will be interested to see how this all shakes up. Looking forward to more investigation, JB!
@DutchCommando4 жыл бұрын
valid point! i think for long range first the wing guys must prove if ghost is up to the task before putting it on a LR quad. a wing will happily fly back home at a fail save, and can fly ten times further than a quad.. long range is only thoroughly tested with planes.. also some serious long range guys use 2.4 video link, which renders ghost useless.. (they can swap for 1,3 video though)
@user-tq4di3kh7c4 жыл бұрын
Wow! I enjoyed the review! Thanks JB!
@mafiafpv34694 жыл бұрын
Awesome demonstration josh
@onden4 жыл бұрын
was I the only one who thought he would be flying in the hotel? :D
@tjburke794 жыл бұрын
Yes
@glen74634 жыл бұрын
ThomasB FPV no I was waiting for him to rip a few packs in there too 🤣
@josepfpv21274 жыл бұрын
Great test .awesome that ghost holds up better than tbs at 100mw in that 2.4ghz full environment. the low latency they offer and the advantage in less data loss seems like a good enough system for quads. it looks like 2.4ghz LoRa is good.
@psj20653 жыл бұрын
I was waiting for this! Thanks Joshua!
@28daballa4 жыл бұрын
I'm convinced,but I just paid for the new v2 crossfire and I don't race and only fly with a couple people. I out run the dji system daily with the crossfire and its locked at 250mw with a 1watt update on the way. I need a reason to buy this. 😩
@tjburke794 жыл бұрын
You have no reason to buy into ghosts. With crossfire you are golden👌
@mistercohaagen4 жыл бұрын
In this week's episode of "800mW Bardwell in the Stairwell"... All the people who were happily watching pr0n via hotel WiFi are so salty right now... and not why you would normally assume.
@rammyfpv70354 жыл бұрын
Hi Joshua, Great vid, interesting results. I know you'll probably spit when i say this.... I cant help wonder what the Frsky R9 would do in comparison to both Ghost and Crossfire? given that its the 'other' long range setup, and probably the one ALOT of EU flyers have given its price point. I understand that R9 doesnt have race mode etc &I know your feelings with Frsky, so dont expect a video :-) Ha Ha Was just wondering is all... Thanks
@MCsCreations4 жыл бұрын
Really, really interesting! Thanks for testing, Joshua! 😃 The test with 25mw probably wasn't until the failsafe with the Ghost... But, still... Pretty impressive! 😃 Stay safe there with your family! 🖖😊
@MrJarrod4 жыл бұрын
Nice job JB.
@Wastelessplague4 жыл бұрын
i like the thought of the ghost but i am mostly wing pilot mid to long range some times 10+ miles i have crossfire micro and have not have had fail safe yet would ghost be something to look into just for informative purposes since i am invested in crossfire already
@claytonfisher54214 жыл бұрын
It’s soooo funny seeing all the TBS fanboys so triggered over this video. TBS lounge going apeshit over it. 😂😂😂😂
@ronbo4223 жыл бұрын
Like someone threw a rattlesnake into the chimp cage!! 😂😂😂
@rokonfpv30404 жыл бұрын
"Thats it. I love this kind of stuff." Only us nerds will get it.
@darkness19434 жыл бұрын
If you do such tests every day, you will soon be slim and in top shape 👍😉
@adrianongoco58403 жыл бұрын
now when i go to x10s it's not an option or ISRM RF. must be built already. x12s it's has it as an option, but seems like a look of work. tho im using a flybarless system. all i will need is a receiver w sbus.
@mikecummings78994 жыл бұрын
I want to know when this will be in stock. I hate pre ordering and backorders because health may take me out of the game before i get to play with my toys i bought. For sure buying ghost as soon as it hits shelves.
@clay094 жыл бұрын
That antenna...there is no way that thing can be performing anywhere near optimal. Or have I been replacing antennas way too soon.
@olafschermann15924 жыл бұрын
Great experiment! Thank you!
@syxpac19464 жыл бұрын
You need a video on installing and setting up the ghost in the radio master t16s.
@nikowinter8334 жыл бұрын
Dear Joshua, you made an awesome video, thanks for that. Could you also test DJI in the next test please? So ImmersionRC Ghost vs Crossfire vs DJI?!
@nonplayercharacter96534 жыл бұрын
That's some old school hotel style JB stuff there. Good shit bro
@Reecefpv4 жыл бұрын
That crsf antenna looked a little jacked up too so Ill stick with my crsf
@niklasryttersson56324 жыл бұрын
I’ve been looking everywere for the weight of the JR module. Could you please put it on a scale? Thanks for making Ghost videos
@WEEBER134 жыл бұрын
Is that a Joshua Bardwell version 5" Glide!?!
@cognetic4 жыл бұрын
I wish you would do these JR module tx/rx range tests, with DJI digital max 1200mw vs analog vtx.
@dr078283 жыл бұрын
meanwhile, hotel hospitality is getting dozens of calls about non working wifi..
@BenjaminSweetnam4 жыл бұрын
getting your stair workout in I see :D
@ifpo2384 жыл бұрын
Love to see testing like this
@MaxBeamer4 жыл бұрын
Well that was unexpected! The frame rates are actually closer than u think the immersion rc slower race mode is 160hz so only a 10hz diff they also say the faster race mode is at 222.22Hz haha so take that with a grain of salt I guess
@dayumcraig76574 жыл бұрын
ill stay with tbs for sure ;) im not a professional race tho.
@offaxisfpv4 жыл бұрын
great work and constant work figuring out stuff so a lot of people dont spend a lot of money on bad products. im looking forward to ghost more and more now
@BlackPixxelDE4 жыл бұрын
Ghost antenna on the quad was less optimal than the crossfire one, as it was close to the frame while most of the crossfire antenna was in free air.
@JosephDawson4 жыл бұрын
I noticed video lasted much longer on the Crossfire drone than the Ghost one. Is Ghost 2.4 somehow creating more RF noise that is limiting the 5.8 video range? The real limit is video failed first so the range limit on this is to understand why the crossfire drone video lasted longer.
@JoshuaBardwell4 жыл бұрын
The video transmitters weren't the same in the two quads. Just wanted to give a general sense of how far the video went.
@gregorydahl2 жыл бұрын
It takes 8 times the power to generate 2 times the transmission distance because you propagate a 3D radio field in all directions even in the opposite direction of your drone . LxWxH But to measure the recieved signal strength at twice the range you will measure ¼ the strength signal . But to generate twice the distance you need to generate in all directions .
@JoshuaBardwell2 жыл бұрын
4x the power. Not 8x.
@gregorydahl2 жыл бұрын
@@JoshuaBardwell Or say 4x power goes only 1.75 x the distance because you need a better antenna. 😄😃
@JoshuaBardwell2 жыл бұрын
I don't really know what you mean. Based on the inverse square law, 4x power gives 2x range.
@gregorydahl2 жыл бұрын
@@JoshuaBardwell Backing away from a steady radio source the measured strength of the signal will be ¼ as strong twice as far away . But to transmit twice as far at the same strength a transmitter needs 8 times the power because the fiekd is getting bigger in 3 dimensions . Up down forward backward left right . Every direction . So to transmit twice as far takes 8 x power . And to transmit 3 times as far and recieve the same signal strength takes 27x power . If you failsafe a 25mW vtx at 100 feet , then a 200mW vtx will failsafe at 200 feet .
@JoshuaBardwell2 жыл бұрын
I'm sorry that's just not true. The inverse square law already takes into account the 3D spherical expansion of the wavefront. That's why it's inverse square and not linear. 2x the range requires 4x the power. Feel free to test this yourself using the RF Link Range calculator at this URL: www.immersionrc.com/rf-calculators/ Estimate Range and then notice that you must increase power by 6 dB (4x the power) to get double the range.
@ankorsteam4 жыл бұрын
shouldn't your CRSF led ring be lit green and not blue? green and green yes?