Android :: Getting Cell Signal Strength For Current Cell Vs Neighboring Cells
Jan 6, 2010
I'm writing an android application that collects cell signal strengths.I am having trouble getting the "current" cell signal strength, but I don't have any problem getting the "neighboring" cell signal strengths.To get the current cell signal strength, I created a PhoneStateListener and implemented the onSignalStrengthChanged callback.It works, but not very well.It seems like the signal strength hardly ever changes, and resolution jumps to only a few numbers.I would accept the answer that the resolution of the signal strength hardware is coarse, but when I use the TelephonyManager's getNeighboringCellInfo() method, it works much better.The signal strength readings from neighboring cells change frequently, and they have much better resolution.So, how can I get the current cell signal strength in the same way that I am getting the neighboring cell strengths?It seems odd to me that the functionality of the neighboring cells is better than the current cell.
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Jan 6, 2010
I'm writing an android application that collects cell signal strengths. I am having trouble getting the "current" cell signal strength, but I don't have any problem getting the "neighboring" cell signal strengths. To get the current cell signal strength, I created a PhoneStateListener and implemented the onSignalStrengthChanged callback. It works, but not very well. It seems like the signal strength hardly ever changes, and resolution jumps to only a few numbers. I would accept the answer that the resolution of the signal strength hardware is coarse, but when I use the TelephonyManager's getNeighboringCellInfo() method, it works much better. The signal strength readings from neighboring cells change frequently, and they have much better resolution.So, how can I get the current cell signal strength in the same way that I am getting the neighboring cell strengths? It seems odd to me that the functionality of the neighboring cells is better than the current cell. Am I missing something here?I would also like to directly call a method from the telephony manager to get current cell strength, as opposed to a listener, if possible. If anyone knows how, please let me know.
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Feb 16, 2010
Is there any way to retrieve the current cellular Signal Strength (RSSI) on Android 1.5?
I know there's a way to listen for signal strength updates through the TelephonyManager, but this seems to only give a "state," not a numeric value.
Is using the RSSI field on a neighboring cell fairly accurate? I'm guessing not, but I'm running out of ideas.
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Dec 18, 2009
There is a site Cellreception.com that tries to aggregate cell phone reception from users who bother to leave reviews. But data collection can be made much more easier, even passive:
Make an app that sends the phone's GPS location and the 2G/3G signal strength of the current provider in that location, to a centralized database, aggregate the results, and make them public online.
Nth Signal seems to be an app like that, but I can't find it on the market, and the reviews on Androlib are not good.
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May 4, 2010
anyone seen an app that simply reports yours signal strength? the built in one (settings > about phone > status) seems to report, but in a way that makes some sense. for example, anyone know what -90 dBm 0 asu really means?
I have a cool app called GPS test that shows the GPS strength - bar chart and number and color - of GPS signals.
I have another app called No Signal Alert that tells you when you have lost your signal. I emailed them to incorporate a signal strength meter, as it seems a logical app to have it.
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Dec 27, 2009
I am trying to write a very simple Android application that checks the signal strength of the current cell. So far, I have only found something called getNeighboringCellInfo(), but I'm not really sure if that includes the current cell.How do I get the CURRENT cell signal strength in Android?Does getNeighborCellInfo() get the current cell? It doesn't seem like it based on the results that I have been able to get with it.
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Mar 24, 2010
The tricorder app is supposed to be able to but it doesn't show it on my droid. Same thing goes for the "Antennas" app.
Anyone have any suggestions?
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Sep 22, 2010
What apps or hacks are available to use the GPS as a standalone navigation tool without having cell signal? I am frequently in the mountains where there is no signal, and would like to use my DI instead of my Garmin.
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May 31, 2010
I am trying to determine if my current connection state is WIFI or Cell network (3g/2g... etc)
I am using SDK 1.5.
Tried couple of technique not really working.
Any working suggestions?
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Aug 20, 2010
Has anyone noticed that if you have your WIFI on that it cuts your cell signal by half? I know I have a netgear N router. With the router turned off I get full cell signal. With the router on it gets cut in half. Sometimes it gets cut down to one or two bars. Anyone else experiencing anything like this? Mods sorry if I posted this in the wrong section please move.
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Aug 5, 2010
Anyone else experienced a major drop in 3G signal as well as their cell signal in the past few days? I think it started monday on my phone and now its mostly running in 1X mode and dropping more calls than I have in the past two years. Not sure if its something with verizon, or maybe and app I updated. (My wifes phone is doing the same, but she also happened to update about a dozen apps on monday)
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Oct 15, 2010
I have the HTC Incredible and I really like it. I'm amazed at everything I can do with it. The only problem is; I live in an area with really bad cell phone service. I hardly get any bars, one if I'm lucky. So I got to thinking about all the apps available for the droid phones. And I started to wondering if there is any way to use my wifi connection to help me get out on my cell phone. Or if there is an app out to help with this.
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Jan 14, 2010
I am trying to figure out how to get the current signal strength of the Android 2.1 device. So far I can only find access to the SignalStrength object if I am listening for a change. I don't want to have to wait for the strength to change in order to see what the strength is.
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Oct 26, 2010
How can I turn off "Cell Standby"
Battery used by cell radio?
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Jun 9, 2010
Does this just mean I am in a bad cell zone? This is my reading at home and it is the top battery usage on the chart, followed by wifi at 24% (on because I am home), and phone idle at 23%.
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Jun 15, 2012
I've ported a Hero ROM to a HTC Magic.Here's my problem:
Problem: There's a great battery drain when you're connected to the network (no data but just mobile network for calls/SMS)
Ported ROM: Sandwich Deluxe 4.0 .
Original ROM: Hero ROM
Kernel: carz-2.6.34.4 (fast and stable)
The mobile network drains battery.I'm not in a low signal-area. Everybody who uses the ROM has a drain.I'm using a 2.x.x instead of a 3.0 kernel for an ICS ROM, can it be that this mismatch creates the drain?The phone displays a singal strength of 0dBm 97 asu. (Not normal?)
What doesn't cause the problem? In airplane mode there is no drain at all. So it is unlikely that some apps causes the drain.Wifi, GPS, sync, ... are all disabled.
What do you expect from xdamembers?
- Confirmation if the kernel is the issue of the drain. If not, I would like to know which files (in ROM) are responsible for network signal.
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Nov 21, 2009
I think I figured out why sometimes my Droid stays on for 1.5 days and sometimes after 6 hour of just being idle the battery is drained.
When wifi is turned on an connected to a network, the cellular signal is way low and it just drains the battery.
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Sep 1, 2010
i'm beginning to think that in 2.2, if you have a lower signal strength (such as i do in my house), it can't tell your location anymore. in my house, wiht 2.1, it always told me my town. now, with 2.2, it says, fro the most part with a lower signal, "current location." however, when i turn wifi on, it'll tell me my town right away, leading me to believe that since my wifi signal is great in my house, it's giving me the correct location.
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Nov 4, 2009
I want to reach out to others here before I take my Moment back to Best Buy to exchange it for another Moment.
My signal strength fluctuates wildly just sitting in the same spot. With the Hero I got a constant 5 of 6 bars, but the Moment will vary between 0 and 5 of 6 bars. But it's more complicated than that.
It seems that whenever the EVDO data kicks in, it causes the signal strength to drop to 0 or 1 bar. Once the data is idle, the EVDO indicator turns grey and then changes from EV(^v) to EV(D). At that point the single strength will return to 3 or 4 bars.
At times, though not as consistently or often, the EVDO connection will fall back to 1xRTT and will switch between them every few minutes. This will occur even when the signal strength bars are in the 3 to 4 range.
So, the my questions are...
Does the signal strength apply to the data signal or just the voice signal?
Is there any legitimate reason for the signal strength to vary wildly like I've described, even when sitting in the same recliner where the Hero had a constant 5 bar connection and data service that never wavered?
Is anyone else having signal strength and/or data service issues?
Should I exchange the Moment for another Moment or will I likely experience the same issue?
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Dec 30, 2009
I want to be able to mess with my friends, is there any application out there for andriod that tracks cell phones by there numbers? Similar to the one for iphone? where you do not need to install anything on their phones and just punch in a number and track them. if so please post site or name of the app.
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Jan 9, 2010
We need to deploy Androids to remote locations where there is no cell service.What seems to be the only option is to create our own localized cell network (yes, we know that is expensive.)The sole purpose would be to support Android applications.What would be the requirements from a phone perspective?Could I use off the shelf phones to connect?Can I just program the SIM cards to be on my network?
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Jul 12, 2010
Is there an app that allows you to receive a fax sent to your cell#? Or even send by taking a photo and sending?
I know faxes are ancient now, but the business world can't seem to get past them. I generally scan and email, but some of our vendors still fax.
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Apr 16, 2009
So my app works well in the emulator in various run configurations and on the device when the device is connected to WiFi. But when I switch off the WiFi on the device, the code that goes out to the network takes forever and then times out (i.e. doesn't return any data). Other people have reported this as well. I also notice that no data is going out or coming in when I look at the little up and down arrows on the 3G icon in the status bar on the G1. I am assuming that the Java code I am using should work for both types of connections, right? I mean, do I need to account for the fact that cell data network is very slow with high latencies i.e. pre-cache my data etc?
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May 19, 2010
i have a problem i live on top of a hill and its unfortunately one of the few places i have ever been that i dont get good cell phone service. i was wondering it there is an app that uses your wifi for you cell phone service or to use wifi to increase my cell phone service
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May 20, 2010
My boyfriend got his cell phone stolen and its a sidekick. I was wondering if there is an app that tracks it using calls or something.
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May 6, 2010
But: how do you activate a ProgressBar according to the cell you just cliked on ? I have a list view, with a menu that shows after a long press. When I click on one of my option I would like to display the ProgressBar in the listView according to the cell I clicked on. It is currently always displaying the one of my first cell.
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Dec 29, 2009
I believe Google is about to fumble the ball, so to speak. I sense a growing frustration with users with how various service providers are handling the updates to Android on their devices, such as Rogers in Canada. There doesn't seem to be any uniform system of rolling out Android updates to all the various devices people are using. I can understand if an older device is not functionally able to handle a new version because of hardware limitations but when a company doesn't offer an update to a phone that is capable of handling it, that will cause major problems for Google/Android. I haven't had my HTC Magic all that long but an unable to upgrade to Android 2.0 without rooting the phone which I'm not inclined to try. It's a TIM's version and so far I can find no information about the latest version of Android in the works for it.
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Jul 9, 2009
Is there a way I can get access to the following information from the cell. I know that it uses a Qualcomm MSM7201A chip. I know qualcomm unleashes a boat load of information such as: Pilots-Channels PN offset Neighbours Searches PN Codes Power Control-TX and RX Slot DRC Signal Noise Ratio Carrier to Noise Ratio Energy to Noise Ratio
So the question is can I get access to all this information and are there APIs from Android that I can use.
So far the closets I have come is in telephony/PhoneStateListener telephony/NeighboringCellInfo telephony/CellLocation telephony/TelephonyManager
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Nov 7, 2009
Is there any API that will give me those 6 neighborhood cell ids on Android, or shall I try to send AT commands to the Android modem.
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Nov 30, 2012
Is there a possibility in Android to view the Cell Info (the name of the cell base, base station etc. - ex. the city name) in Android? Whatever - an option, an app or a widget?
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