Is there a small slide out antenna on the market that i could connect on the connector @ the back of the samsung galaxy s near the sim.
I want to boost up my signal strenght becouse me 3g doesnt work that good in the area.
Any idea's its no problem to customize my backcover
From my point of view its a GSM testing cable connector for the hardware support.
Unfortunately nothing to extend range or to improve signal and not used like some older mobile phones for an external antenna when pluged to a car mount.
Search for
GH39-00985A
CBF SIGNAL RF TEST CABLE
CBF SIGNAL-SCHU550 RF TEST CAB
You are certainly wrong. I had some problem with my antenna before and by inserting a thin copper wire in that plug, i could got signal. It is definitely an external antenna plug. You can see the connection between that plug and internal antenna plug on the mainboard.
stepsch said:
From my point of view its a GSM testing cable connector for the hardware support.
Unfortunately nothing to extend range or to improve signal and not used like some older mobile phones for an external antenna when pluged to a car mount.
Search for
GH39-00985A
CBF SIGNAL RF TEST CABLE
CBF SIGNAL-SCHU550 RF TEST CAB
Click to expand...
Click to collapse
So just stick a piece of copper wire in it?
Do not try it!
It's DEFINITELY an external antenna conector. I've used it to get signal in the middle of nowhere.
That said, DON'T DO IT!
It's VERY easy to break the conection to the internal antenna. Your phone will have no signal afterwards, only with an external antenna. Some had no signal at all, even with an external.
It happened to me, as detailed in this thread.
http://forum.xda-developers.com/showthread.php?p=18594705
The Charge has 4 ports on the back (behind the cover), which look like external antenna ports.
Has anyone tried to plug in antenna's to these ports?
(BE CAREFUL! ) I heard one person say pluggin in an external antenna might sever the tie to the internal antenna.... Any solid info on this?
I gett -98db on my charge, when it decides to connect to 4g, its awesome.... but its only about half the time.
I have till the 6th to return it. (I tried the TB, it gets slightly better internet, could my Charge be a dud? I get about -93)
At work all I care about is getting good internet.
They are antenna connectors. Apparently, they are a proprietary Samsung type that you can purchase an adapter cable to go a common connector at bestselldist.com My post count isn't high enough to post a link yet...
The bottom of page 6 of Anandtech.com's Droid Charge review shows a diagram of the antennas on the charge (but not the ports.)
They mention that the 4G and 3G are handled by separate antennas. 3G and 4G each have diversity. What I don't understand is why there is L1R2 on one port but R1 and L2 get separate ports. I presume the smaller connector on the right labeled "G" is for wifi.
If anybody could enlighten us, that would be great. I noticed some antenna/amp booster products for the Droid Charge, but I would prefer to some real antennas with large coax running to a pigtail to hook right up to the Charge.
by the way: I highly doubt that connecting an antenna will cause a problem. You generally don't want to connect antennas when the radio is on. That could damage the phone, but I'm not an expert. I was always told to never connect or disconnect an antenna when the device is on...
xdadevnube said:
They are antenna connectors. Apparently, they are a proprietary Samsung type that you can purchase an adapter cable to go a common connector at bestselldist.com My post count isn't high enough to post a link yet...
The bottom of page 6 of Anandtech.com's Droid Charge review shows a diagram of the antennas on the charge (but not the ports.)
They mention that the 4G and 3G are handled by separate antennas. 3G and 4G each have diversity. What I don't understand is why there is L1R2 on one port but R1 and L2 get separate ports. I presume the smaller connector on the right labeled "G" is for wifi.
If anybody could enlighten us, that would be great. I noticed some antenna/amp booster products for the Droid Charge, but I would prefer to some real antennas with large coax running to a pigtail to hook right up to the Charge.
by the way: I highly doubt that connecting an antenna will cause a problem. You generally don't want to connect antennas when the radio is on. That could damage the phone, but I'm not an expert. I was always told to never connect or disconnect an antenna when the device is on...
Click to expand...
Click to collapse
Did you ever find a solution to what you were looking for? I'm interested in doing something like this as well.
External Droid Charge Antenna
I know that those ports on the back of the driod charge have a connector that fits them somewhere, and it seems that I'm not the only one looking. Very curious, isn't it?
The G is ground.
Sent from my Galaxy Tab running MIUI
Please use the Q&A Forum for questions Thanks
Moving to Q&A
so?
Anyone find a definite answer on this?
I would like to revive this thread, as I am in a poor signal area and would like to figure out how to boost my signal properly by plugging in some external antennas.
I am looking to enhance 3G performance (no LTE here.)
Wifi and Bluetooth are a little strip in the back next to the battery. 4G and 3G have separate antennas: http://www.anandtech.com/show/4465/samsung-droid-charge-review-droid-goes-lte/6
Check out this post where a guy connects an external antenna to the Charge:
https://plus.google.com/115676199813038165917/posts/jCmtnbQvgun
If anybody knows what each connector is for, I would love to know. My understanding is that 3G and 4G antennas each are separate and have their own receive diversity. It seems that the Charge uses a single antenna L1R2 to transmit, but I could be wrong.
Also, if G is ground, in where scenario would you use it when connector external antennas? I'm kindof a nube, and plan on doing more research.
screwed up 4G
Ok.. so I was reading some internet sites on how to boost signal.. should have come to this thread first. I have officially screwed up my Charge. I can get 3G but 4G is never connecting.. not sure how to test.
At one time I lost all signal strength, messing with R1 port.
Then i finally got that up.. I lost data messing with L2 port.. compeletly GONE!
Finally got that up.. don't know what L1 R2 is.. but yeah stay away from touching these ports. can't figure out how to get 4G.. One time I was on a hill and i saw 4G pop up! and then it quickly went away..
only have 3G speeds now..
Back to the Lab again.
Did you connect the ports with the device on? If so, it is possible that the it shorted the radios. This may or may not cause permanent damage.
I honestly don't know whether plugging into these ports with the phone on would cause a problem.
I believe that L1R2 is trasmit for the 4g and 3g radios. I believe that R1 and L2 are the receive for 3g and 4g, but I don't know which is which.
I could wrong about this, however. G is likely ground.
In any case, unless you know what your doing, you should be very careful. As soon as I figure out what each of the ports are, I will likely use them.
Look at the link I posted above where a guy hooks his Charge up to an external antenna.
It is very possible to hook up external antennas. There is no doubt about that. It has to been properly to avoid damage. It is possible that the whatever you connected to the port of the Charge has an internal short in it, which would cause damage the Charge radios.
Other considerations are impedance, SWR, tuning frequency, etc. The the right knowledge, it would be a simple matter to connect a very effective antenna for signal boosting on the Charge.
xdadevnube said:
I honestly don't know whether plugging into these ports with the phone on would cause a problem.
It is very possible to hook up external antennas. There is no doubt about that. It has to been properly to avoid damage. It is possible that the whatever you connected to the port of the Charge has an internal short in it, which would cause damage the Charge radios.
Other considerations are impedance, SWR, tuning frequency, etc. The the right knowledge, it would be a simple matter to connect a very effective antenna for signal boosting on the Charge.
Click to expand...
Click to collapse
Not quite correct. I work for a company that specializes in antenna's for cell phones. The Charge, like most Android phones, doesn't have a workable port for an externally connected antenna - sure, you can hook up to the aforementioned port, but that permanently disconnects the phone's antenna (in our experience, from doing this lots of times). Impedance needs to be between 50 and 75ohms, SWR is not a factor, and the frequency is in the 1900 band (for most areas, for 3G).
You can use a wireless repeater (read amplifier), and that works really well - I go from a -98 to a -71, in my house.
chevybythesea said:
Not quite correct. I work for a company that specializes in antenna's for cell phones. The Charge, like most Android phones, doesn't have a workable port for an externally connected antenna - sure, you can hook up to the aforementioned port, but that permanently disconnects the phone's antenna (in our experience, from doing this lots of times). Impedance needs to be between 50 and 75ohms, SWR is not a factor, and the frequency is in the 1900 band (for most areas, for 3G).
You can use a wireless repeater (read amplifier), and that works really well - I go from a -98 to a -71, in my house.
Click to expand...
Click to collapse
Do you have any more information pertaining to what each port on the Charge is?
My Wilson repeater is nearly worthless (massive amounts of lockups, reverting to 1X, flashing red lights that aren't described in the manual, and many more issues even after experimenting with a multitude of installation types) and I just unplugged it after massive amounts of frustration.
In any case, I'd love to get specific information about the ports and how to properly use them, its kindof a shame to let them go to waste.
xdadevnube said:
Did you connect the ports with the device on? If so, it is possible that the it shorted the radios. This may or may not cause permanent damage.
I honestly don't know whether plugging into these ports with the phone on would cause a problem.
I believe that L1R2 is trasmit for the 4g and 3g radios. I believe that R1 and L2 are the receive for 3g and 4g, but I don't know which is which.
I could wrong about this, however. G is likely ground.
In any case, unless you know what your doing, you should be very careful. As soon as I figure out what each of the ports are, I will likely use them.
Look at the link I posted above where a guy hooks his Charge up to an external antenna.
It is very possible to hook up external antennas. There is no doubt about that. It has to been properly to avoid damage. It is possible that the whatever you connected to the port of the Charge has an internal short in it, which would cause damage the Charge radios.
Other considerations are impedance, SWR, tuning frequency, etc. The the right knowledge, it would be a simple matter to connect a very effective antenna for signal boosting on the Charge.
Click to expand...
Click to collapse
Yeah.. i believe i shorted the radio.. it never goes to 4G.. and it will sometimes i get the big X on the signal.. saying i lost all connection.. I really messed something up.. people gotta learn the hard way sometimes. well.. i'm working on getting a replacement. But i agree with everyone on the internet.. this is def.. a taboo thing to do.. don't mess with it.. like ESN hacking.. Sorry i can't be of help.. just wanted to post my experience.
xdadevnube said:
My Wilson repeater is nearly worthless (massive amounts of lockups, reverting to 1X, flashing red lights that aren't described in the manual, and many more issues even after experimenting with a multitude of installation types) and I just unplugged it after massive amounts of frustration.
In any case, I'd love to get specific information about the ports and how to properly use them, its kindof a shame to let them go to waste.
Click to expand...
Click to collapse
PM me - we'll get it figured out for you, no problem.
xdadevnube said:
Do you have any more information pertaining to what each port on the Charge is?
My Wilson repeater is nearly worthless (massive amounts of lockups, reverting to 1X, flashing red lights that aren't described in the manual, and many more issues even after experimenting with a multitude of installation types) and I just unplugged it after massive amounts of frustration.
In any case, I'd love to get specific information about the ports and how to properly use them, its kindof a shame to let them go to waste.
Click to expand...
Click to collapse
Did you get the Wilson repeater for 4G.. it runs in the 700mhz band.
The HTC Thunderbolt has an external antenna on the battery cover.. take it off, and you get bad signal.. It's connected via 2 copper ends on the back of the phone. That would be interesting to copy/mimic on the Charge if it's available.
Hi Guys,
This is a reference thread for anybody who has patchy reception and is considering using an external antenna to boost reception.
I have found that the patch cable required is the same as most other samsung phones.
The particular cable I used is this one: http://www.cellink.com.au/productde...=1&pcr=WES0830&tsb=Samsung&tsm=Omnia+2+(i8000)
I imagine that the same type of product would exist overseas as well - but if you are in a tight squeeze Cellink distribute worldwide.
Note that plugging in this cable disables the internal antenna (so if you don't have an antenna plugged to the other side of the patch cable then you will lose reception immediately).
Finally note that YOU WILL HAVE TO REMOVE THE BATTERY COVER TO USE THE PATCH CABLE. I'm hoping to get a second cover and drill a hole in it so that I can simply plug the cable in through the whole. I can confirm that there is enough clearance to drill a hole and plug the cable in that way.
Let me know if you have any questions.
I quite like the idea, but I have a few concerns:
Does the antenna work for both internet (all networks), wifi, gps, and normal cell connectivity?
Would one theoretically be able to connect an RP-SMA antenna, I have some nice wifi antennas lying around
I have read some concerns about the manual switch responsible for turning the internal antenna on / off is not that reliable and can cause issues stopping your internal antennas from working
Hi fed44,
Answers in red below.
fed44 said:
I quite like the idea, but I have a few concerns:
Does the antenna work for both internet (all networks), wifi, gps, and normal cell connectivity? Yes, no, no and yes is the short answer. The external antenna is ONLY for the telephone radio.
Would one theoretically be able to connect an RP-SMA antenna, I have some nice wifi antennas lying around I'm not an expert here but from my limited knowledge: (1) you would need some kind of patch cable because the standard patch cable outputs to a male SMA connector (and not an RP-SMA) and, (2) there appear to be different antennas for different purposes (wifi, mobile network, etc.) my understanding is that a wifi antenna is not optimal for boosting mobile signal - that said it may or may not provide a boost over the internal antenna.
I have read some concerns about the manual switch responsible for turning the internal antenna on / off is not that reliable and can cause issues stopping your internal antennas from working I think this is an issue with older samsung phones. I have experienced no such issue with my external antenna (over around 10 uses). I'm not sure but I don't think it actually uses a manual switch - the reason why I say this is because when you unplug the antenna it takes a few seconds to switch back to the internal antenna.
Click to expand...
Click to collapse
I was thinking about using something like that. My problem is that 3G signal is very weak in two places where I spend most of the time - home and work. And for some reason phone is preffering 3G even if signal is so weak that internet is not working. So I had to turn off 3G. But it seems stupid to have HSDPA capable phone using EDGE only.
amaric said:
I was thinking about using something like that. My problem is that 3G signal is very weak in two places where I spend most of the time - home and work. And for some reason phone is preffering 3G even if signal is so weak that internet is not working. So I had to turn off 3G. But it seems stupid to have HSDPA capable phone using EDGE only.
Click to expand...
Click to collapse
I can confirm that this setup will be awesome for that.
I haven't drilled the hole yet (in the case that is) - but once I do that it will make the setup much more functional.
I have a SCS-2U01 which i got from Verizon because I moved and my service sucked. I Have goggled all over looking for an antenna upgrade for it, it uses a little tiny antenna and I imagine it would be greatly improved if I could find an antenna to raise the gain, I don't care about the consequences of increasing my signal such as more people being able to hop on my extender, everyone around here uses US Cellular and I don't care, I want better service.. All I see online are Better GPS antennas that will plug into it, That is not my problem my range extender gets a great GPS signal. I want to expand my CELL service the extender provides, it barely works on the other side of my house.
If no-one knows who sells an antenna upgrade for this device (possibly because it uses a strange connector, I haven't looked), can someone tell me which specific frequencies I need to nail to look for a compatible antenna then make my own connector for it. If it is a multi-Frequency issue I am willing to hack together multiple antennas just like an old TV house antenna, but since I'm only dealing with Verizon's EVDO Rev A and voice signal it should be Verizon's 800MHZ and 1900MHZ bandwidths they use. I'm asking for advice from anyone who has done this or knows about using two separate antennas then putting them together into one coaxial connector (of whatever type connector the extender uses). I know that one coaxial connection can support more than one frequency at a time, my asus router has 3 dual 2.4 and 5ghz antennas with only a coaxial connection per antenna.
To summarize my questions are, 1 is there a high(er) gain unpowered 800/1900 antennas out there (or decently cheap powered ones), 2 are those the only two frequencies I need for Verizon service below LTE (Verizon doesn't sell an LTE extender) or is there third frequency I need to be aware of and 3, does anyone know of an issue with SCS-2U01 that wouldn't allow me to do this. It appears the antenna is removable. Well, let me put it this way, I will remove it one way or another if I find higher gain antennas.
Thanks for any and all advice given, I will greatly appreciate it.
antenna
I know this is really late, but I just purchased the
5db Magnetic Mount Antenna with SMA Male connector 690~960 MHz, 1710~2170 MHz, 2500~2700 MHz for LTE, AWS, 4G, 3G, 2G, PCS, GSM etc
from this site:
http://www.maxmost.com/
I was thinking of the 11db Gain Magnetic Mount Antennas Tri-band (800/ 900 / 1800/ 1900 mhz) but the post from here:
http://www.wirelessforums.org/alt-cellular-verizon/verizons-network-extender-96712.html
says this antenna might cause an FCC violation. Plus this antenna is almost 3 feet long so I opted for the 5db antenna that is about 1 foot long. I figured that the frequency has to be around the 800mhz and 1900mhz band since that is what the specs of the scs-2u01 and others say in the specs site: http://www.verizonwireless.com/accessories/samsung-network-extender-scs-2u01/
I tried to use an antenna from an asus router, but that antenna was meant for 2.4ghz and 5ghz so it did not work properly. I will let you know how this antenna does. I was thinking of purchasing a couple of the business model scs-2u3100 and linking them, but this antenna might do the trick, and I already have a working scs-2u01. I tried for a while to get it to work with an asus RT-AC68U, but I could not do it even with all the tricks (DMZ, port forwarding, turning dmsmasq off, disabling SPI, toggling open access and managed access for the extender in verizonwireless.com, setting a static IP address for the extender, changing the static IP address of the extender, and all in 3 different firmwares (latest OEM firmware and latest beta, Merlin's AsusWRT, and DD-WRT )) I finally just replaced the Asus with the Netgear Nighthawk x6. This router is not worth the extra money for me other than the fact that it actually works with the network extender. I thought it might have just been broken for a while, but now I get signal in my house. Every call dropped before I got this working.
Was wondering how you guys made out with alternative antennas. Looking at an upgrade myself. Thanks.
Just in case there are others that are looking to do this I figured I would post my results as I went and purchased a The Wilson 311125 (formerly 301125), 50 Ohm 12-inch Magnet-Mount Antenna is a multi-band antenna that features up to 6.12 dB of gain, from Amazon and just hooked it up to my SCS-2U01. I went from my LG G3 reporting 1 bar of service in my living room to a consistent 3 bars and the notification bar reports 3G connectivity where it didn't prior.
That sounds good! What was the connection at the SCS-2U01, i.e. what type of rf connector was it? How difficult was it to detach the existing antenna and attach the 311125?
Only 7 years later lol, glad that worked out.. Anyone know about the same info but for the newer 4g or 5g extenders?
My original problem was solved by Wi-Fi Voice on a newer phone.