Are there external antennas available which have better signal reception that the built-in one? I'd like something that helps me when working in a low-signal area and/or indoors.
Hi All,
Does anyone know if the external antennae connector on the back is usable by the GPS? Will it result in a stronger signal?
Thanks!
Rael
The external connector appears to be for GPS as there is a link to an antenna in the trinity accessories forum.
As for how good, im not sure.
Aerials
I bought one of those aerials. It fits the connector, but does nothing for GPS signal strength. It does however slightly boost the GSM (phone) signal, which confirms that this connector is a GSM connector, not a GPS antenna. It also fits the GSM connector on my Artemis (HTC3300) which has two separate connectors, one specifically for GPS and one for GSM.
Hi
I was in my grandparents house when i tought i need better wifi signal cause it was reconnecting me all the time.
I opened up my phone and put out wifi and gps antenna.
Then i connected gps antenne into wifi ports.
My friend have LG OPTIMUS 2X so i compared those phones before and after this tweak.
Before i hade like -90 dBm (on LG from -80 to -75dBm) and its was reconnecting me very often.
After i have from -80 to -70 dBm and now its working even little better than LG.
If someone would try something like that please share your results to see if it works, for me it works perfectly
careful with that, i did all sort of testing on the hd2's antennae system. Basically you bridged the wlan and gps antennas into one big one. The first logical conclusion is that it should work better, and as far as this goes, it does. However there's a reason gps and wlan/bt antennas are separated by the manufacturer. The gps part has a LC filter near the antenna and the filter is connected to a hi gain signal amplifier. When you feed to much signal into the gps part the small transistors in the gps signal "amplifier" will get fried over time - will loose sensitivity. GPS will still work but as time goes by, you'll find out that it is increasingly difficult to get a lock. On one motherboard i tested, this leaded to total failure of the gps receiver side (needed an external hi gain antenna to get a fix, otherwise totally dead).
The reason for this problem is the fact that when bridging the antennas you create a ground loop on witch wifi/bt signals (higher amptitude) will get into the gps side, damaging it.
The solution is to separate both antennas and if you need a higher gain on the wifi side, develop a small fractal antenna or add a small enameled copper wire, wrapped around in a small coil, both ends connected to the wifi antenna pins.
If you really need stronger wlan, use some electric tape and insulate the gps pins from their antenna, if you want to keep your design. You will loose gps functionality, though.
NEVER mix up, gps with radio (GSM/3G) antenna, this is the most dangerous, again for the gps side. If you look at the hd2 board you will see that these 2 are actually in opposite sides.
Some newer phones use unified antenna designs for wlan/bt/gps etc, by means of some fast detection/varactor diodes in a signal mixer located in the input stage of the amplifier/emitter circuitry but no phone uses unified antenna for these AND the GSM part.
facdemol said:
careful with that, i did all sort of testing on the hd2's antennae system. Basically you bridged the wlan and gps antennas into one big one. The first logical conclusion is that it should work better, and as far as this goes, it does. However there's a reason gps and wlan/bt antennas are separated by the manufacturer. The gps part has a LC filter near the antenna and the filter is connected to a hi gain signal amplifier. When you feed to much signal into the gps part the small transistors in the gps signal "amplifier" will get fried over time - will loose sensitivity. GPS will still work but as time goes by, you'll find out that it is increasingly difficult to get a lock. On one motherboard i tested, this leaded to total failure of the gps receiver side (needed an external hi gain antenna to get a fix, otherwise totally dead).
The reason for this problem is the fact that when bridging the antennas you create a ground loop on witch wifi/bt signals (higher amptitude) will get into the gps side, damaging it.
The solution is to separate both antennas and if you need a higher gain on the wifi side, develop a small fractal antenna or add a small enameled copper wire, wrapped around in a small coil, both ends connected to the wifi antenna pins.
If you really need stronger wlan, use some electric tape and insulate the gps pins from their antenna, if you want to keep your design. You will loose gps functionality, though.
NEVER mix up, gps with radio (GSM/3G) antenna, this is the most dangerous, again for the gps side. If you look at the hd2 board you will see that these 2 are actually in opposite sides.
Some newer phones use unified antenna designs for wlan/bt/gps etc, by means of some fast detection/varactor diodes in a signal mixer located in the input stage of the amplifier/emitter circuitry but no phone uses unified antenna for these AND the GSM part.
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i've always enjoyed reading your posts, extremely informative! thanks (and thanked)!
your saying i connected gps and wifi antenna into one piece. Propably its because i used bad words to describe what i was doing
truth is, i just changed between those antenna so i still have them.
GPS is now on wifi ( i dont have gps now ) and wifi antenne is in a safe place.
Is there any danger in the way i use it now? I dont see anything to proof that, except those wires look different.
Thanks for respond
Hmm, doesn't sound like a good thing to try. I don't really have problems with my wifi, but mixing the antenna's... yeah the manufacturer did't split them for no reason.
its almost week after i changed wires and nothing happend since then, except i have a feeling my battery lives longer with better wifi signal.
aah, you only changed the antenna wires (black - white). That's ok, no problem here.
I understood that you soldered the 2 antennas together. That's another story.
Vibrant gps receiver does not work well. If you every used an app or the lbs test mode to monitor the gps signal you'll know that the vibrant is barely hanging on to gps signal even when outdoors. Most of the sat's come in with ~20db signal strength.
One trick to boost gps signal (to speedup lock) is to place vibrant on a metal surface. I noticed when I place the phone on my car hood, I get much faster and reliable gps lock.
What's more interesting is that I can get gps signal boost by placing vibrant over a DVD!
So now I can get much stronger gps signal inside the car by placing a DVD under vibrant.
I see about 10db improvement in signal strength using a DVD.
With this trick, you don't need to muck with the agps setting, instead just make the standalone gps work.
Will try it
Sent from my SGH-T959 using xda app-developers app
Hy Guys!
Problem:
I m working in a factory, where there all many places with low signal strength.
Also sometimes i m getting low signal strength at my home, or outside.
Other phones with my simcard don't have that problem, already tested with a Samsung S2 and a Nokia E90.
Phone was in serviece because often i was get zero signal strength and many missed calls at "normal" places.
My zero signal strength was fixed by the serviece.
Solution(?):
After a little search i was found out, there are two plus Antenna connector at my Note 4 (N910C).
Connection points on phone:
s33.postimg.org/55z9sxzr3/Note_4.jpg
Wire:
s33.postimg.org/tl7htzynz/wire.jpg
Antenna:
s33.postimg.org/rs4l5odhb/s_l500.jpg
Asking:
Can we use that to connect something that get me a little extra signal strength?
I was thinking some Stamp / Foil antenna ( cheap at ebay ) but with the twist, of steel direct connecions with antenna connector wire ( also cheap 1-2 USD ).