Does the 802.11a lack performance on Galaxy Note line of products?

nboy22

Diamond Member
Jul 18, 2002
3,304
1
81
Hello everyone,

Recently, I bought a drone, the Yuneec Q500+ with CGO2+ gimbal/camera setup. The camera setup apparently runs off of 802.11a. When I use the remote control that came with the drone, I can send the drone up 400 ft into the air and it has no issues communicating a signal.

Onto the problem I'm facing. There's also a steadygrip that came with the drone package. It's a handle you can attach the camera to and put your phone into the holder that is built-into the handle. You can then download an app to connect through wifi to the camera/gimbal. The connection then allows you to see what the camera is seeing through your phone's screen and also control the camera from your phone.

I hooked the camera and my phone up to the steadygrip and connect via wifi, but the connection only holds for about 3 seconds to 3 minutes and then it disconnects. It seems the faster the movement of the camera, the faster the disconnect happens (likely because the data that is being sent is being increased exponentially). I have gone into the service menu of the phone and in the wifi section I have verified I'm connected to the camera with 802.11a but the signal strength is abysmal, very low dB for the phone being right next to the camera. I can move the steadygrip around fast and watch the connection completely just drop off from the wifi service menu. When I surveyed the wireless access points with a surface pro 4, I saw the camera's wifi and it was a very strong signal in comparison.

I should note that I have gone into all the main wifi preferences and turned off all the settings that would connect to stronger access points, allowing the wifi to sleep, and anything else that sounded like it might be an issue that could be causing the problem I'm having. I'm also using Android 5.0, carrier is Sprint, and everything is updated on the phone.

So then I get an idea to test my friend's Iphone 6 and the damn thing works like a charm. I go do the same test with a coworker who has a Note 4 and it does the same thing my note 3 does. The wifi connection just drops off quickly once the camera is moving fast.

So is this a known problem? Is Samsung using some bunk wifi chips that have poor functionality and throughput? It seems so to me, at least in the 802.11a spectrum. I have a co-worker who has a the newest Nexus phone and I'll use it to test on Monday so I'll post my findings, but for now I smell something fishy with Samsung's wifi chips.
 
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luv2liv

Diamond Member
Dec 27, 2001
3,500
94
91
whats the verdict?
i dont have a samsung phone. but im definitely looking at the Yuneec with the 4k camera
 

cbrunny

Diamond Member
Oct 12, 2007
6,791
406
126
I have a note 4, and while I have not used it to test anything that even remotely resembles your use case, I can say that it's antennas are so bad that I won't even consider Samsung for a smartphone purchase ever again.

My problems are primarily with bluetooth, wifi, and gps. GPS is about as good as my.. erm.. it's very bad. Unusably bad. Bluetooth cuts in and out CONSTANTLY and regularly drops my connections. Wifi is the best of the three, and it is useable but is far from good.

The cellular antenna is surprisingly good though, I must admit. Call quality is quite good.

I did a bit of looking into this, and according to Googling the interweb it doesn't seem (to me) to be the chips that are bad. The chips are the same as what's in other high end devices. I think it is more likely a software problem. i.e. touchwiz. This is mostly speculation, but it stands to reason that the same chip should perform the same in two different phones. Something is different, and it is probably the software on top of the chips.
 

GTRagnarok

Senior member
Aug 6, 2011
246
0
76
^ Hmm, my experience is quite good with a Note 4 running a debloated KitKat TW rom. Bluetooth connection with my car's head unit never drops, my WiFi connects as soon as I pull into the driveway, and my GPS only takes a few seconds to get my location. I also often use the GPS with the Runtastic app when I'm biking and it plots my course pretty accurately.
 

cbrunny

Diamond Member
Oct 12, 2007
6,791
406
126
Runkeeper is actually where I really started noticing how bad the gps was. It would have completely erratic courses that were waaay off the mark. Bluetooth was never great but it seems to have declined over time, which is just weird. Your good experience with a rom makes me think it is touchwiz.
 

Harabec

Golden Member
Oct 15, 2005
1,369
1
81
That's odd because my note 3 gets a GPS signal REALLY fast. Also use RunKeeper, gmaps, waze etc.
wifi and cell reception are also good. The device is almost 2 years old.