[Q] Purpose of the antenna port on the back? - Galaxy S I9000 Q&A, Help & Troubleshooting

Hello there,
I'm just wondering what the antenna port (or at least it looks like one) is on the back of the SGS and more specifically what it's connected to, I don't particularly want to start hooking up random length wires until I know what length would be optimal (requires knowing what it's being used for and the bands for that use) and whether there's any particular practice that'd kill something important.
(the usual whatnots)imgur.com/UngPL.jpg
If this is linked to any radio system/s apart from bluetooth it could be darned handy!
Apologies if this has been answered somewhere else, searching for "antenna port" just gave complaints about the GPS system or requests for ports of things.
Many thanks!

gsm antenna for sure.
for external antenna for better reception.
no link with gps or bluetooth...

medimel said:
gsm antenna for sure.
for external antenna for better reception.
no link with gps or bluetooth...
Click to expand...
Click to collapse
Have you tested it?
It's apparently a MCX connector..
http://forum.xda-developers.com/showthread.php?t=757487&highlight=mmcx
http://forum.xda-developers.com/showthread.php?t=718233&highlight=mmcx&page=2
http://forum.xda-developers.com/showthread.php?p=7573901&highlight=mcx#post7573901
But I'm not sure if anyone ever managed to confirm for sure..

So, from what I can gather from those threads you linked (thanks btw) it's not any sort of uniform port as the sizes don't quite match anything in use, they are however probably right in that this should be a GSM antenna port. I've got another phone on hand here with another antenna port and the two are not the same size.
Well, I'm always up for a bit of hackery so I think I'll carefully shove a wire in and use sticky tape or something else that's not hard to remove to keep it in, see what improves.
addition from about an hour later: Managed to pry open my SGS and according to the few teardowns I can find all of the antennas should be in the plastic that makes up the bit you see below the back cover, removed that and tried the phone, still works and picks up wifi, GSM and GPS signals fine so idk what's going on with respect to other antennas, all I can do is jam a wire in that connector and hope for the best.

oops !
Hey well i tried to jam a wire in it didn't do anything but after a few minutes i realized that now i have no signal reception the only way to get some signal is if i am close to an cellular antenna .I am not sure if it has to do with the wire i jammed or that it's just a coincidence because i am not even sure that it really when in the small hole and touched anything ...
So does any one have any idea what to do now ?

sent the phone to get fixed and got it back working !!! but i still wonder what it was....

Related

MoGo USB 'Port' Boosts Wireless Signal On The Go...Portable signal booster!

Since i'm a gadget freak, I thought I would share my obsession with everyone and post new things as I find them. This one seems to be a pretty good idea. Especially if you run around and experience low signal quality in certain areas. I haven't bought it yet...not sure if I will but wanted to share in case someone else was looking for something like this.
http://www.everythingusb.com/mogo-wireless-port-14077.html
Dont get too excited, they claim a 50 db gain, which is impossible. At most an antenna that size might get a 2 or 4 db gain, and the largest gain Ive seen from a real antenna that I own is 12. You cant go higher with planar and yagi antennas, but not a multidirectional dipole. Im also curious how they plan to make a connection via usb - only phones with external ports like the Athena can utilize external antennas. To go through the usb port the phone would need a special driver and firmware designed to allow it.
Did you pick up one of these devices yet? It looks like they essentially set up a VOIP type relay and allow for the cell phone signal to be re-routed over another stable internet connection. There are several different ways of making this happen, but for us as athena users, it might generate some-type of feedback loop or not work at all if we are expected to see our internet signal improve our phone signal, with the full understanding and realization that if we have weak phone signal that we will also have weak data connections as well. The place where a solution like this could work is when we are in airports, close by hotspots that might not have good cellular reception or other ground based internet connection. IF you find out that the solution works with the Athena as a stand alone, let me know. For now, I use the adapter from Radio shack and it helps out for a bar or two normally and provides coverage when I travel to the country. I have also bought other car adapters and the like but can't see the difference in realized performance over the $39 dollar solution from Rat Shack...
Hope this helps and please keep me posted on your findings...

Antenna??

The Titan has the antenna port...
Does anyone sell an external antenna for the Titan/Mogul?
I use mine for data sometimes and the edge coverage here is spotty. If I could get the antenna outside thats all that would needed. A magmount (car), or even just the adapter wire would be fine.
Titan Antenna
Try places like Radio Shack at least maybe the might be able to point out who carries them. Here, in NW Arkansas Alltel carries the Antenna and the required adapters but I got mine at a local place called Wireless hook-up They Carry "Wilson Cellular" Accessories, not sure of exact name but Wilson something. I has a strong magnetic mount for the Antenna. Be careful about getting Matching Antenna and Adapter cuz the connectors vary. Also Adapter for a Motorola fits as the don't always carry the HTC one, I think it was V7 but can't remember. Good luck
Thanks... yeah, I have plenty of antennas to use, or could cut one to length...
I wouldn't ask anyone from Radioshack anything!
Does anyone actually know what adapter works? I don't want to just keep trying until I find one that fits. Mess up that connector and you're fuxed....
Wilson Electronics
http://www.wilsonelectronics.com
Try that to see if they has a local vendor. I found my package its Part# 359909. It's not for 6800 specifically but it works. It lists a few LG's, Moto's V710 V262 V265 etc. And the HTC Apache and 6700; and the Dash etc...
the old antenna from my Moto e815 car kit fits into mine.
Funny thing though it really dosent seem to help at all. Some times i think it drops a bar when i plug it in.
Any idea ?
Does adding an antenna increase speed of EVDO? i'm getting pretty crappy wireless speeds here in Albuquerque, NM (87123) like 200 down, 50 up, and I'm hoping for some improvement. if i have 3 bars, can i expect an antenna that may help me to get 4 or 5 bars to give me better speeds?
one more question: do I need to "enable" Rev-A in my EPST, under Data Parameters? right now, it says disabled, but i've never seen anyone recommending enabling it. i didn't notice any change on speed tests when i enabled it anyway, so i switched it back not wanting to mess anything up.
thx
A word of warning: I tried an external antenna just this weekend (June 14th) and now my phone is having problems getting a signal without the ext antenna being plugged in. I think the external antenna port disables the internal antenna and now my phone is stuck with the internal antenna disabled. I'm taking it to a Sprint store tomorrow to see if there's anything they can do. Does anyone know of a way to force it to use the internal antenna through software?
dhoopes said:
Does adding an antenna increase speed of EVDO? i'm getting pretty crappy wireless speeds here in Albuquerque, NM (87123) like 200 down, 50 up, and I'm hoping for some improvement. if i have 3 bars, can i expect an antenna that may help me to get 4 or 5 bars to give me better speeds?
one more question: do I need to "enable" Rev-A in my EPST, under Data Parameters? right now, it says disabled, but i've never seen anyone recommending enabling it. i didn't notice any change on speed tests when i enabled it anyway, so i switched it back not wanting to mess anything up.
thx
Click to expand...
Click to collapse
If you check the RSSI in your debug screen (##33284# for sprint...shows up as Rx Power) it's a better indication of signal strength than the number of bars. You want to be around -50 to -60 for the best speeds. It is possible that there isn't a Rev A enabled tower in your area yet, too, so signal strength might not matter at all...
200 kiloBYTES or kiloBITS? 200 kiloBYTES is really good.
Don't change the "disabled" in your EPST...it needs to stay as it is...
Can anyone tell me what the antenna is used for and why didn't we get one when we got the phone?

Signal Strength

I hope somebody can help me with this. I have a T-Mobile Wing and I can't get a signal in my office. I have no office phone to use either, so its really annoying because I miss some important calls. I'm not going to be able to opt out of my contract either. So I was wondering if anybody knows of any tweaks that can boost your signal strength. I'm willing to try anything and I'm only a slight noob (I recently just flashed my rom, first time I tried I bricked my phone but I got it back up and the second time i worked like a charm). So if anybody knows of any hacks or anything like that, that could work I will thank you forever.
P.S. No those little stickers on the phone don't work.
What type of office building is it? Take a good look at the construction of it and a T-Mobile coverage map. If that building used a lot of concrete & rebar + steel in its construction then that will dampen your signal strength. It also depends on your location within the building. If a huge line of power cable is run near where you are that will cause a ton of interference screwing your signal over as well (depending on if they insulated that run).
Other things can cause interferance but primarily those are it. If T-Mobile doesnt have superb coverage in that area that ontop of the building can be brutal.
I dont know of any software tweaks that will help your signal itself, and most of those stupid gadget addon's are gimmicks anyway. If your building has it tap into the wifi and try some VOIP action.
Lastly, try the T-Mobile wing forum, since they use your phone they might have more options and things you can try. This is the s730 wings forum
Try this one, on ebay not so expensive and suitable for very small office (80 m2)
http://www.qx-tele.com/enpro_list.asp?BigClassName=Mobile Phone Repeater&ID=601

How to Increase Reception on Sony Xperia X1

Did anyone tried this out?
http://blog.whitesites.com/How-to-Increase-Reception-on-Sony-Xperia-X1__633958291637656250_blog.htm
Better try to flash an other radio version before doing this to your Xperia.
Edit:
At home i have just 2 bars of reception, but anyway it has a very good connection. Only HSDPA reception could be a little more.
If i am outside my house, i mostly have full reception even with HSDPA.
If you're getting a weak signal from your provider, there's no way to magically make reception better other than the provider giving better coverage.
Being that my Nokia's all have full reception in house and the Xperia loses connection in the same location...
rickysio said:
Being that my Nokia's all have full reception in house and the Xperia loses connection in the same location...
Click to expand...
Click to collapse
Try to change U'r radio version, that's totaly work
xicloe said:
Try to change U'r radio version, that's totaly work
Click to expand...
Click to collapse
I've changed 5 times already.
The issue is not whether it can be resolved or not, it is how slipshod the SE radio firmware is.
Nokia gets it right 100% of the time, so why can't SE?
The blogger on that link may be onto something (ie hardware related, not firmware) - but I'm not going to do that!
I changed the radio f/w to 1.16 - it's better than before, still not perfect in terms of the number of bars, and I sometimes lose the signal in the local supermarket...
X1 signal quality is poor/below average - but not poor enough to take the phone apart like that, or to actually change it for another.
I have already re-shelled my phone, so I have no fear of this. It is actually very easy to get to that part, but I would think that the rubberized coating would help to prevent corrosion on the copper antenna. Correct me if I am wrong, but wouldn't a cell signal have no problem passing through a millimeter of rubber compound?
I would be more than willing to mod this to get a few more bars, but I don't want to cause damage and not actually have any benefit.
If anyone here has tried it please post your results.
i just did this mod so far there has not been any noticable increases in reception but it seems to be more stable with less drop outs

Broken Wifi antenna?

Hello,
After swapping broken LCD screen, with new front frame also attached, Wifi does not work unless right next to the router. I do not have the sim tray at the moment so I don't know if cellular part works.
So my question is, does anyone know what part inside is the WIFI antenna? I did have some difficulty putting the coaxial cable back in place, it seems to stick but I'm wondering if I could have broken a connector there. If coaxial is for WiFi it would make sense, I have taken the phone to pieces and back multiple times now without any change.
Hopefully someone who know the insides can help, didn't find much help from google.
crowley_07 said:
Hello,
After swapping broken LCD screen, with new front frame also attached, Wifi does not work unless right next to the router. I do not have the sim tray at the moment so I don't know if cellular part works.
So my question is, does anyone know what part inside is the WIFI antenna? I did have some difficulty putting the coaxial cable back in place, it seems to stick but I'm wondering if I could have broken a connector there. If coaxial is for WiFi it would make sense, I have taken the phone to pieces and back multiple times now without any change.
Hopefully someone who know the insides can help, didn't find much help from google.
Click to expand...
Click to collapse
Well if you changed the screen from the service centre they'll probably fix it. But if you didn't you might need to figure it out.

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