is there any app which can display the signal strength on the handset? I would like a guage/scale to represent more accurately instead of say the four bars normally shown.
if you search the market there must be an app, but if you go to
settings
about phone
status
you can see the signal strength there, as well as other info about your phone
Yeah I see that but doesnt it get represented in unhelpful dBm or something?
How is getting the signal strenght in dBm unhelpful its actually the most accurate thing you can have. Getting a gauge or scale is almost impossible as different operators sets their network in their own way, ie TX power on the radios, handovers and so on. We also have to take the landscape in count as well, suburban, open areas.
Its handy if you understad all the techy jargon, I think hes leeking for something with %
bonesy said:
Its handy if you understad all the techy jargon, I think hes leeking for something with %
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Precisely bonesy!
I fit smart meters around the country and as we chiefly fit voda and orange sims inside, it helps to know if the signal is adequate. Lugging around a dummy model with an extension lead (requires power) is sometimes impractical, I just thought I could use my handset to check or at least indicate better than four useless bars.
Garz__ said:
Precisely bonesy!
I fit smart meters around the country and as we chiefly fit voda and orange sims inside, it helps to know if the signal is adequate. Lugging around a dummy model with an extension lead (requires power) is sometimes impractical, I just thought I could use my handset to check or at least indicate better than four useless bars.
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Click to collapse
You should really read up on radios and dBm. In short if you check in settings->about phone->status and it says something between -50dBm and -80dBm you should be all good.
im getting 69dbm 22 asu?
I have noticed i dont seem to get HSDPA on my magic, Where as my blackstone would get it anywhere in my town? Any ideas?
Different handsets will be able to get a signal even when on the same network, this I guess is down to aerial or build quality?
Another method I use is strapping a 9 volt battery to a modem however the only indication of a signal is the pulsing LED which doesnt tell me how strong the signal is. I guess I will go read up some basic dBm theory but Im sure somebody telling me they seen an app (probably on the iphone) which could tell you which network was strongest.
I have looked around some more and found that in the SDK you can read out the signal strength and from that we should be able to do some kind of guage.
Problem is it only reports -113dBm to -51dBm and -1 if unknown. This means that we have to create some sort of formula that calculates -51dBm to 100% and -113dBm to 0% signal strength. Anyways I'm not that fluent in java so thats up to someone else to create such tool.
It's not in %, but you may find CellFinder useful..
It gives your nearest cell tower, operator name, MCC, MNC, Cell CID, Cell LAC, Signal Strength in asu and dBM, direction and distance as well as longitude and latitude location with a map view showing the tower and your location
bonesy said:
im getting 69dbm 22 asu?
I have noticed i dont seem to get HSDPA on my magic, Where as my blackstone would get it anywhere in my town? Any ideas?
Click to expand...
Click to collapse
Could be ROM related. Cyanogen doesn't support HSDPA...
ehnvis said:
I have looked around some more and found that in the SDK you can read out the signal strength and from that we should be able to do some kind of guage.
Problem is it only reports -113dBm to -51dBm and -1 if unknown. This means that we have to create some sort of formula that calculates -51dBm to 100% and -113dBm to 0% signal strength. Anyways I'm not that fluent in java so thats up to someone else to create such tool.
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Click to collapse
OK I eagerly await anyone who would be so kind as to do this. In the mean time I shall try CellFinder, thanks codemonkey!
Draxter said:
Could be ROM related. Cyanogen doesn't support HSDPA...
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Really? Why?
woo456 said:
Really? Why?
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Well the phone still supports HSDPA but its only the PVT32A Magics that really show it with the H icon. Others only show the 3G icon but still has HSDPA.
So a modified Dream/PVT32B rom will not show HSDPA but still has support for it.
ehnvis said:
Well the phone still supports HSDPA but its only the PVT32A Magics that really show it with the H icon. Others only show the 3G icon but still has HSDPA.
So a modified Dream/PVT32B rom will not show HSDPA but still has support for it.
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Click to collapse
So basicly there just isn't the H icon, but there is the 7.2Mbps speed - on the PVT32B I mean. Am I right?
woo456 said:
So basicly there just isn't the H icon, but there is the 7.2Mbps speed - on the PVT32B I mean. Am I right?
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Click to collapse
Yes, but to get the 7.2Mbit/s there is alot of other variables that has to be in place. You need full signal, be alone in the cell and the network needs HSDPA support. Even if thats true you still wont reach 7.2Mbit/s as thats the theoretical max, best I've seen so far is just over 6Mbit/s (and thats in a controlled environment in our lab here where I work).
Shamelessly bumping now I found the thread.
Related
Is there a way to force HSDPA? I have it enabled (using advance config) & rarely does it connect to it, uses Edge majority of the time.
if the place you are present have poor hsdpa support it
roam to other network types
would you rather have it loose connection ?
+1 on what Rudegar sad, also its BTS who decide for you when HSDPA should kick in. If you are in area you will recieve.
So theres no way to force the connection?
I had three bars earlier when connection & worked awsome, now Im on edge & fights to get 10kbps down. Ive noticed this in the cities Im in often like Roanoke,VA, Atlanta, Montgomery,AL, Virginia Beach, Detroit.
cptnslow said:
So theres no way to force the connection?
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Click to collapse
It's just like if you have a 56 kbps modem - remember those antiques from only 10 years ago - there's no way to force a higher connection speed without unreliability and connection drops coming into the equation. Maybe it's time to trial another network (perhaps with a pay as you go sim) and see how their offerings compare.
Where in Va Beach? I live in Va Beach and get HSDPA pretty much everywhere i go.
ProudPop83 said:
Where in Va Beach? I live in Va Beach and get HSDPA pretty much everywhere i go.
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Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
raiisak said:
Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
Click to expand...
Click to collapse
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
Flying Kiwi said:
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
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http://en.wikipedia.org/wiki/HSDPA
Fast packet scheduling
The HS-DSCH downlink channel is shared between users using channel-dependent scheduling to make the best use of available radio conditions. Each user device periodically transmits an indication of the downlink signal quality, as often as 500 times per second. Using this information from all devices, the base station decides which users will be sent data on the next 2 ms frame and how much data should be sent for each user. More data can be sent to users which report high downlink signal quality.
The amount of the channelisation code tree, and thus network bandwidth, allocated to HSDPA users is determined by the network. The allocation is "semi-static" in that it can be modified while the network is operating, but not on a frame-by-frame basis. This allocation represents a trade-off between bandwidth allocated for HSDPA users, versus that for voice and non-HSDPA data users. The allocation is in units of channelisation codes for Spreading Factor 16, of which 16 exist and up to 15 can be allocated to HSDPA. When the base station decides which users will receive data on the next frame, it also decides which channelisation codes will be used for each user. This information is sent to the user devices over one or more HSDPA "scheduling channels"; these channels are not part of the HSDPA allocation previously mentioned, but are allocated separately. Thus, for a given 2 ms frame, data may be sent to a number of users simultaneously, using different channelisation codes. The maximum number of users to receive data on a given 2 ms frame is determined by the number of allocated channelisation codes. By contrast, in CDMA2000 1xEV-DO, data is sent to only one user at a time.
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raiisak said:
http://en.wikipedia.org/wiki/HSDPA
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Click to collapse
I was actually looking at that page a few days ago with regards to speeds but it doesn't change the fact that in some locations my phone shows the H icon when there isn't even a hint of a data connection present and no voice call taking place at the time either. Under such circumstances, it could have quite easily dropped back to a 3G icon until HSDPA is needed but it nearly always doesn't. The only place I've found it does work like this, interestingly enough, is when I'm going past the O2 UK HQ beside Slough train station where it will drop back to 3 G unless a data connection is in place.
When I was using Vodafone UK, this did not happen in the same loacation (never tested for this near their HQ out at Newbury) but again I experienced many cases where the H icon was shown on the phone but not needed. Thats why I've mentioned it's network dependant. I take your point that the specs dictate it should work otherwise but in my case thats not played out to be how it's gone.
If you want I can make your icon show a Q or Z for that matter, 3G as ONE a connection is a misleading term as it describes many technologies. Normal HSDPA suppose to show H when used and 3G idling. Remember the 6.1 ROM`s who displayed H all the time HSDPA or not? If you read up on wiki you will understand what I sad about HSDPA in earlier post. You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
So as long you do not stream/call of use for HSDPA you will not stay in it. So if you going to force it to stay in HSDPA you need to constant stream, an idle HSDPA connection swich over to 3g and back once called upon. So correct me if I am wrong here ... And I preferred documented. The only thing that is provider dependent here are if they support it and the coverage of it. The technology which I was talking about has nothing to do whit just that.
Flying Kiwi said:
I was actually looking at that page a few days ago with regards to speeds but it doesn't change the fact that in some locations my phone shows the H icon when there isn't even a hint of a data connection present and no voice call taking place at the time either. Under such circumstances, it could have quite easily dropped back to a 3G icon until HSDPA is needed but it nearly always doesn't. The only place I've found it does work like this, interestingly enough, is when I'm going past the O2 UK HQ beside Slough train station where it will drop back to 3 G unless a data connection is in place.
When I was using Vodafone UK, this did not happen in the same loacation (never tested for this near their HQ out at Newbury) but again I experienced many cases where the H icon was shown on the phone but not needed. Thats why I've mentioned it's network dependant. I take your point that the specs dictate it should work otherwise but in my case thats not played out to be how it's gone.
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Click to collapse
raiisak said:
You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
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Click to collapse
Why would my phone lie to me like that given (in the same locations) it reliably and correctly detects that it is in 3G and then when a data connection is initiated bumps up to H. There is no doubt to me that it is reliably detecting the connection type as it does this every time I travel through Slough on the train if I initiate a data connection. Similarly it seems as if the H, 3G, G and even E, do correctly display under the right circumstances. Again, I've no dobt about the HSDPA specs and how it should work, I'm just saying in reality with my HTC Official ROM'd phone (both using my current setup and previously WM 6.1), it's behaved that way in practice.
I think the OP wants the same sort of performance and indications from his phone that I'm getting from mine and I know no way to 'force' an HSDPA connection and get appropriate speeds if the network infrastructure and signal strenth aren't up to the task. On the other hand there maybe another network that operates much better in a given area which will provide whats required and there's little cost in doing some 'trialling' of competing networks in the areas involved.
Raiisak said:
You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
Click to expand...
Click to collapse
Flying Kiwi said:
Why would my phone lie to me like that given.........
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Listen mate, I dont know why you want to argue or what you want to argue about???? Twisting and turning my answers are not going to do the trick here, OP asked about forcing he`s device in HSDPA, I answered that it would not work cause HSDPA does not work like that. Then you come in and start talking about something completely else and nagging on my answer?? I do not care what your phone shows and how it work in local area`s nearby you as it has nothing whit my answer or on topic IMO to do.
Raiisak said:
Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
Click to expand...
Click to collapse
Flying Kiwi said:
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
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Click to collapse
This comment triggered it all, if I had knew that you would not be interested in my answers on your comment I would not have taken the time to explain about HSDPA.
Flying Kiwi said:
I know no way to 'force' an HSDPA connection
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Click to collapse
Then what do you argue about here? I am not going to comment this further as what ever I say does not get to you and there is nothing to more discuss.
Nothing personal
raiisak said:
Listen mate, I dont know why you want to argue or what you want to argue about???? Twisting and turning my answers are not going to do the trick here, OP asked about forcing he`s device in HSDPA, I answered that it would not work cause HSDPA does not work like that.
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Click to collapse
There's no need to bring out the 'listen mate' with multiple questionmarks on the end. I do listen where I think something is clear and correct. If I think there's more to an issue, I chime in. In response to your link to that wikipedia page which outlines how it should work (in an ideal world), I'm telling you that some networks do not appear to implement things according to the official specs so it won't necessarily behave that way. My examples based from usage/observations in many different locations around the UK prove that point and as I mentioned that was also the case when I was with Vodafone here so that's all, no more, no less and no intention to offend.
Then you come in and start talking about something completely else and nagging on my answer?? I do not care what your phone shows and how it work in local area`s nearby you as it has nothing whit my answer or on topic IMO to do.
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Click to collapse
There's those multiple questionmarks again, calm down, I'm not having a go at you. I think it's best for the OP to make that determination whether my comments are relevant as we both replied in order to try and help that person out. You with some might say the 'official' line and me with the 'in practice' line. In the end we agree the answer as to what can be done to force HSDPA is the same ie nothing. I added the possibility that if better performance is saught, a network change may provide this.
This comment triggered it all, if I had knew that you would not be interested in my answers on your comment I would not have taken the time to explain about HSDPA.
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I was interested all right, I felt your original answer and the subsequent wikipedia link didn't paint the whole picture so that's why I came in. I trust that you will eventually understand and accept that. Remember, I'm not having a go at you
can give me the bearing, relative strength, and ID for any cell towers in range?
I've been with AT&T for 12 years in the same location, with few complaints. However, in the last 30 days my reception (and everyone in my house) has been crap. I always used to get 3-4 bars on the E network. Now I waver back and forth between one very weak G bar and 2-3 E bars. I get lots of dropped calls, failed dialing, missed messages, etc.
Since I live in a quite rural area, I'd like to have some leverage when I talk to AT&T about this problem. I'd like to be able to track what signals I'm getting from which towers. Have they added towers? Did I wind up i n a dead zone? Am I in an area where different towers are competing for my signal? Etc.
Mind you, I'm not trying to triangulate *MY* position. I want to find the bearing, relative strength, and any available ID information for nearby cell towers.
Why not open the topic at Raphael software
Look for Fieldtest.exe in your windows folder. This a nifty little program by HTC ( I think). This program will give you the signal strength, etc...
ronald-is said:
Why not open the topic at Raphael software
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Click to collapse
Because these guys in the ROM forum are the smartest people I know about this phone. Maybe I bent the rules a little...
Since you've been using Edge network usually, just turn the 3G off on your raphael... This may help lock on to the older tower that you're used to. Perhaps they built a new tower a little farther off that is giving you a weak 3G signal.
i don't know how you would do that for your other phones since I don't know what they are.
Was just messing around with my Nexus One, I have used the *#*#4636#*#* trick to turn on GSM Auto (PRL) Which greatly improved battery life but didn't do much for signal so just now I was messing around went back into the phone info section turned on GSM Auto (PRL) then went down to OEM-Specific Info/Settings and turned off ciphering and wow my dbm went from -101 down to -87 and I seem to be able to hold a 3g signal reliably. If I grasp the phone tightly and intentionaly try to make it lose 3g I still can but holding the phone normally it seems to stay on 3g and doesn't fluctuate nearly as much as before.
Can anyone else give this a try and let me know if it's just a fluke? Never seen my DBM's so low before in front of my computer so seems like something is up here.
I don't see any difference, but I am on 2G right now.
Meh, don't read it if you don't like. It is the first ever thing i've tried that actually noticeably improved my 3g reception so thought i'd share it. If enough people notice simliar increases in 3g reception perhaps it will lead to an official fix from Google. If everyone remains quiet on the subject we will never get anywhere.
Cheers
What's the difference between gsm (prl ) and wcdma that it was naturally set to?
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Sent via the XDA Tapatalk App
Jrbourque said:
What's the difference between gsm (prl ) and wcdma that it was naturally set to?
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
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http://forum.xda-developers.com/showthread.php?t=682662
Jrbourque said:
What's the difference between gsm (prl ) and wcdma that it was naturally set to?
-------------------------------------
Sent via the XDA Tapatalk App
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Click to collapse
It doesn't search as much when on wcdma. GSM auto(prl) is basically a file that contains a lists of towers in your area that you have access to. So your phone uses that instead of searching all the time.
Here is some more info
http://en.wikipedia.org/wiki/Preferred_Roaming_List
and I'm sure there is others.
thanks for the tip. I tired it and my dbm went from -102 to -87 to -93 range.
does having a lower dbm means better signal? I have a place where my 3gs gets 2-3 bars, and my nexus has 0 bars. Kind of disappointing, the the cell radio in the nexus 1 is not as strrong as the iphone 3gs. I'll test the phone later there, and let you know.
Yea, lower the dbm the better the signal, it definitely helps but doesn't alleviate the problem with holding the phone from the bottom. I have since switched to WCDMA Only to help combat that problem. It seems I am able to stay on 3g pretty reliably this way even though I sometimes lose all bars when holding the phone from the bottom it still stays connected to 3g and I am able to surf the web and make calls with no bars showing, it's rather peculiar but it's working for now so I won't complain. If this doesn't work out I think I will end up switching to Sprint and going with the EVO on June 4.
Definitely that's one thing I noticed is with zero bars my phone still makes clear calls and fast data, so I just figure the signal meter is just more conservative than other phones.
-------------------------------------
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So what exactly does turning off ciphering do? Is it worth it for the signal boost?
Ciphering is to keep other people from hearing your conversations, it's like encryption...not a big deal for me as I've nothing to hide and never give out credit card numbers over the phone or anything like that but it might be an issue for some.
ssj4vegita2002 said:
So what exactly does turning off ciphering do? Is it worth it for the signal boost?
Click to expand...
Click to collapse
http://www.hackcanada.com/blackcrawl/cell/gsm/gsm-secur/gsm-secur.html
I am assuming that Ciphering is purely the encryption aspect ...
i recently unlocked, rooted and s-off my htc one, on stock i used to get around 5/4 signal bars and now i only get two/three.
im currently running trickdroid 7.5 rom 4.2.2.
so im looking for a radio which would work for orange/EE in the UK.
please can someone help, or point me into the right direction
this is the one for the 4.2.2 firmware
http://forum.xda-developers.com/showpost.php?p=42139108&postcount=18404
Are you sure that it is not the same level? Don't be fooled by the bar looking different, remember that it might show 2 bars of LTE but that could still be better than 5 bars of H+ (as an example).
So if you used to get 5 bars of 3G but your now getting 2 bars of H or H+ then you are better off even though its less bars.
Please do not take this as me treating you as if you are stupid, I am not, I have come across a lot of people recently who thought the same, and it turned out to just be a different type of signal.
fixed
okk i just flashed 1.29.401.12 Radio and it's back to normal.
i found it here http://forum.xda-developers.com/showthread.php?t=2245615
Lennyuk said:
Are you sure that it is not the same level? Don't be fooled by the bar looking different, remember that it might show 2 bars of LTE but that could still be better than 5 bars of H+ (as an example).
So if you used to get 5 bars of 3G but your now getting 2 bars of H or H+ then you are better off even though its less bars.
Please do not take this as me treating you as if you are stupid, I am not, I have come across a lot of people recently who thought the same, and it turned out to just be a different type of signal.
Click to expand...
Click to collapse
thanks for the input but!
i never said i was using my data connection,
Same principle applies even with data off.
Sent from my HTC One using Tapatalk 4 Beta
Lennyuk said:
Are you sure that it is not the same level? Don't be fooled by the bar looking different, remember that it might show 2 bars of LTE but that could still be better than 5 bars of H+ (as an example).
So if you used to get 5 bars of 3G but your now getting 2 bars of H or H+ then you are better off even though its less bars.
Please do not take this as me treating you as if you are stupid, I am not, I have come across a lot of people recently who thought the same, and it turned out to just be a different type of signal.
Click to expand...
Click to collapse
So if I have 5 bars when set to "GSM" only but 2-3 when set to "GSM/CDMA" .. that's as good?
I'm being serious btw, I normally set mine to just GSM as I seemed to have more signal but if there isn't any point then I won't bother lol ..I'm in the UK btw and on a network that doesn't support LTE (I think)
AllAboutTheCore said:
So if I have 5 bars when set to "GSM" only but 2-3 when set to "GSM/CDMA" .. that's as good?
I'm being serious btw, I normally set mine to just GSM as I seemed to have more signal but if there isn't any point then I won't bother lol ..I'm in the UK btw and on a network that doesn't support LTE (I think)
Click to expand...
Click to collapse
You can confirm the 'type' of signal you are getting at any time in the menu > settings > about part of the phone.
Your phone will automatically switch to whatever the best signal is available at any time, you don't really need to change your GSM/WCDMA settings, unless you really want to force it away from 3G connections (again this does not mean you have to have data turned on).
Cool, I'm not too fussed about what data type it uses as I rarely have data turned on, I just naturally assumed that by switching it from GSM'CDMA Auto to just GSM, meant that I'd have better reception, being that the signal bars went from 2/5 to 5/5 ... You learn something new everyday lol
EDIT: I checked my signal, and I mean my reception, not the data connection type, when switched between GSM/WCDMA Auto and GSM Only and there is a huge difference. I found this guide:
dB Signal - A basic guide
-50 to -60 (very strong, near a cell tower)
-60 to -70 (extremely good, rare)
-80 to -85 (normal downtown)
-90 to -95 (getting on the weak side)
-95 to -98 (weak, dropping calls)
-98 to -100 (bad, hard to stay connected)
-100+ (basically no usable signal)
When I set my phone to GSM Only I hover around -70, which is good, when I switch to GSM/WCDMA Auto it is a different story. I know it changes and finds the best signal, which I might add drains more battery on an already power hungry beast, but I was hovering at -100 which is terrible and often calls were dropping or people were saying it was engaged when infact I hadn't used it.
It's clear to me that in my case, GSM Only is the far better option if I actually want to use my phone to make calls ... Data speeds I'm not arsed about so EDGE is just fine with me.
I've seen some people post regarding less/lower signal bars when updating to the new radios which come with 4.3 and you have LTE.
At first I said "WTF" but then I realized... the bars are now sort-of working as intended...
Let me explain,
If you're connected to LTE, the bars are now based off your LTE signal strength. I noticed even at roughly -110 to -100 I only get one bar. I believe the bars start going up dramatically once you have a signal strength greater than -100 (for example, -95db, -85db) And we all know -130db is the cutoff before we lose LTE.
I figured this out once I turned the phone to "CDMA only" to test. Once on "CDMA only" I had almost full bars, (-70-75db for 3G/1x)
To conclude, if you're on LTE and only have 1 bar, you most likely/probably have great cell phone coverage as that 1 bar is determining signal strength for only LTE. When connected to LTE, you're also still connected to 1xRTT which is used for voice. LTE is only used for Data at the moment.
If you really want to test your cell phone coverage, you can get one of those programs to tell you both your 1x signal and 4G signal simultaneously.
Edit: I forgot to mention, Considering the LTE radio and 1x/3g radio are seperate, you're going to get mixed results depending on signal penetration through walls, trees, etc. From what I've seen so far, as of right now 1x/3g penetrates a bit better than LTE. But, really depends on your surroundings
Thanks for the info. Someone else tipped me off about this, and a few SpeedTest checks confirmed it. In fact, 1 bar with the 4.3 ROM produced slightly better results than the 4.1 ROM with 5 bars.
ED2O9 said:
Thanks for the info. Someone else tipped me off about this, and a few SpeedTest checks confirmed it. In fact, 1 bar with the 4.3 ROM produced slightly better results than the 4.1 ROM with 5 bars.
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Click to collapse
Yup, which makes sense because when connected to LTE on 4.1 the 5 bars are based off your voice coverage, not LTE strength.
Still seems kind of dumb. I'd rather know what signal I have to make a phone call rather than what kind of data I can expect.
Thanks for info !
Sometimes just 1 bar but internet working well, but 4-5 bars it is not working/slower !