Develop Bugs

[App] Tawkon - Radition monitor app

I found a odd app thats only out for SGS today. TawkOn . Said to tell you if its safe to use your phone.
http://www.tawkon.com/
Get it free from Market
I personally don't believe in it but Its cool to show off to friends

interesting... Myself I don't believe in this bs lol. How long you usually talk on your phone? 5 min, 30 min, an hour? If there was radiation I would guess it wont affect you very much, there are radiation everywhere, some are stronger, some are lasting longer etc.
I am interested in how it figures out the radiation lol

same though here,
to measure that kind of thing, you'll need a real external sensor to measure radiation which the phone doesn't have anyways

And even if it would be possible to measure it directly with the phone, it wouldnt make any sense. Who needs to make a call, makes the call anyway. For all other paranoic people: dont use a mobile phone, stay away from a microwave oven, don't look directly in tv, etc. could continue here until my battery dies. XD
Sent from my GT-I9000 using XDA App

I think it takes the signal strength you have (dB) and how many cell towers are in your vicinity, that's how formulates the radiation, when you're close to a cell tower the radiation should be much higher than normal, thing is I personally half believe in this, I pitty the people who have on theyr buildings like 10-20 antennas for TV, radio, cellphones ..... they will get many affections and the immune systems is weaker that others, That is a proven fact, plus other problems, it depends on every persons, where his weak points are

I just like it as it's eye candy I'm a sucker for shinny blinking things. I uninstalled this app anyways as I can't see a use for it other then to get people paranoid.

A mobile phone emits less radiation when connection quality is good than when it is poor.
Connection quality is, for example, better outdoors than in a building or areas with connectivity interferences (basement, elevator, car, etc)
Connectivity improves with proximity to a cellular base station
Connectivity can be reduced by phone usage such as antenna orientation (if the phone is held vertically or horizontally), travel speed, etc
Click to expand...
Click to collapse
It polls all this, and then determines some value that supposedly represents mobile radiation.
It's not fake, it's just slightly pointless, as you can determine most of this by looking at your reception.

Dunno how this works, but the SGS has a very low SARS rating (radiation level) which is super good

[Q] music streaming: 4G versus 3G

Would there be a difference in quality streaming Pandora in 3G versus 4G? If there would be no difference then I could save battery drain via 3G. Since Pandora used to work fine on my OG, thought it might not matter.

It just takes longer. Otherwise no.

lilfleck said:
It just takes longer. Otherwise no.
Click to expand...
Click to collapse
Longer to start first song only or for each song?

Generally the first song in a well covered area.
Sent from my Galaxy Nexus using Tapatalk

might not be quite that simple. the 4g antenna uses up more power, but won't be actively transferring data as long either. it will also be dependent upon the relative signal strengths. if you have good signal strength on 4g and poor for 3g, you might find that 3g is using more power.
in terms of quality, it probably won't matter unless the 3g speed is slow enough (due to congestion or poor signal strength) to prompt pandora to transcode the music to a smaller bitrate to avoid skipping. i'm not certain that pandora has this feature, but i know other cloud-based music players do that sort of thing and i would expect pandora to do the same. as long as you have a decent 3g connection though, streaming music will be cake without the need to transcode.

rubber soul said:
might not be quite that simple. the 4g antenna uses up more power, but won't be actively transferring data as long either. it will also be dependent upon the relative signal strengths. if you have good signal strength on 4g and poor for 3g, you might find that 3g is using more power.
in terms of quality, it probably won't matter unless the 3g speed is slow enough (due to congestion or poor signal strength) to prompt pandora to transcode the music to a smaller bitrate to avoid skipping. i'm not certain that pandora has this feature, but i know other cloud-based music players do that sort of thing and i would expect pandora to do the same. as long as you have a decent 3g connection though, streaming music will be cake without the need to transcode.
Click to expand...
Click to collapse
So, if I'm in an area with good coverage of both 4G and 3G, I would probable save battery with 3G and not suffer quality?

you certainly won't suffer any quality loss if you have good 3g coverage.
whether you save on battery isn't clear to me because there is a tradeoff going on:
4g consumes more battery per second than 3g.
3g is on for more seconds to complete a download.
my suggestion would be to give yourself a real test. queue up a bunch of songs in an area you typically would listen to music and have the app stream the entire playlist. the longer the playlist, the more accurate the test. open the battery status and observe the battery usage rate. repeat this test on 3g and see if there is any difference.
ideally the tests would be performed both starting with roughly the same battery percent (make sure it is less than 90% to start). and they both would have everything gps, wifi, data sync, etc. turned off. if you perform the test, report the results!

3G is plenty to stream music. I've streamed Google Music for long periods of time while on the highway with poor signal. Having a well designed app (in the sense that Google Music prefetches the first few seconds of pending songs to eliminate a pause between tracks) helps, too.

LTE will use less power because it will turn off quicker. Being more efficient is the whole point of 4G technologies.
Stand-by times are usually worse for each succceeding wireless technology. We won't be able to know that for sure until carriers deploy VoLTE and LTE IMS SMS. Right now, LTE is only used for data. Voice and SMS go over CDMA, so the phone is powering 2 radios at one time. This, combined with the early LTE chipsets, is why the LTE Nexus has such awful battery life compared to the GSM/HSPA model.

[Q] Which should I keep?

I recently ended up with *two* used Evos. I will keep one.
I'm curious if anyone has any ideas on which one might perform better.
One is Hardware 0003, Epson screen
The other is Hardware 0004, Novatec screen
Basically, before I go through the trouble of moving my phone number to one of them, I'm asking are there any performance differences in BT/CDMA/WiMax radio hardware, GPS, cameras, etc?
Thanks in advance..

I kept the HW0004: Brighter screen, slightly better ability to connect 4G, faster and more accurate GPS, a little better WiFi reception, slightly better battery life. Only thing the HW0003 seemed to do better was voice calls: it sometimes displayed more bars and showed generally better (more green, less yellow) signal strength in the battery history graph over time.

HW0004 seems to have better radios. Better staying connected on 4G and more sensitive GPS. I didnt notice a big difference on the screen, but signal strength was generally better.
Its always nice to have a backup though...

Battery Question

I've noticed that the battery drains much faster on 3G/4G than Wifi. What i've read is that wifi uses more battery than 3G and 4G uses the most. I don't find much difference between 3g/4g and find much better battery while on wifi.
please advise.
thanks.

wifi uses way less battery than either 3g or 4g.

The battery life will depend on the signal strength of your 3G or 4G connection. This does not always equate with the number of bars. (Settings=>About phone=>Status=>Signal strength) A reading of -90 dBm is better than -109 dBm. Being inside a building vs outside will give you different readings as well. You are likely to get a stronger signal outside in the open than inside an inclosed space. The weaker your 3G/4G signal, the more power required to sustain the connection. Your WiFi signal (assuming it's strong) will help conserve your battery better than a weak 3G/4G signal.

Its commonly known that wifi indeed uses much less battery life that 3g. Wifi latency and speeds compensate and you get much longer battery life using wifi rather than 3g. So use wifi whenever possible.
You even see manufacturers rated specs confirm this. Look at apple's specs for iphone, they give higher times on wifi than 3g. And anandtech tests confirm this with every handset they test.

[Q] 3G Battery consumption

Hey,
when I use 3G I get about 2H of screen time,
and when I use WiFi I get about 4H (max).
My usage is WhatsApp, Browser etc..
Is it normal that I'm getting half of the time with 3G?
Can it be fixed with another baseband?

Any help?

3G uses more battery since it's also searching for better connection all the time(unless you choose 2G only in mobile network options, then you get better battery but speed is not so fast anymore).

I can confirm that a weak 3G connection gobbles up battery charge very quickly. This is a flaw in the radio firmware or perhaps somewhere else. Of course the phone should switch to 2G automatically when 3G is not used intensively, but uses excessive amounts of electricity, but the designers apparently overlooked this.
Your main option is, as already mentioned, to do the thing manually that your phone fails to do automatically—force 2G only.
If you do that, don't forget to disable the force-2G option again when (a) you need the higher speed and the connection is good enough for that, or (b) if you moved into an area with better reception, like 3 or 4 bars.
Alternatively, leave the settings untouched, i.e. 3G enabled, and keep charging the phone if you are stationary and have electricity nearby. You can charge from a computer, albeit at half speed.

I almost always have 3/4 bars, so I don't think I have a connection problem.