Blue Angel Field Test Mode - MDA III, XDA III, PDA2k, 9090 General

Does anybody know if the Blue Angel has a Field Test Mode similar to the mode available on Nokia phones that can be unlocked? Or better yet has anyone written any software that displays similar data such as Cell/Tower site, Antenna sector, Antenna identifier, signal strength in -db etc.?

Related

wizard antenna mod

hi guys
well i have a question... I was digging out whole day the net for info about any mod for the wizard antenna mod...
I own CIngular 8125 aka HTC Wizard 100, and since I have week wifi signal i thought id get better reception..
so i found some sites including instruction here also but i went for this mod
here http://tinyurl.com/y2gke3 exactly i made the same thing as shown here http://tinyurl.com/v2oxv I cut a small piece of antenna between 2 pins rely..
so, actually nothing happened with my GSM signal, it was same as before, but i found out that my wifi signal dropped a bit, which I wanted to increase...
so, i thought for making this mod here http://tinyurl.com/wq8k2 and id like to know if it gets any better wifi signal strenght...
next thing id like to know, is the issue with the antenna... is the same antenna used for GSM and wifi or what? did anyone managed to get any wifi antenna connection on PCB of a wizard so it can be attached a better antena?
if I connect an external antenna to my wizard, will the wifi signal get any better? the pcb looks similar to this picture http://tinyurl.com/y5p7yh and on the left from sd card is the external link...
is there any possibility to get better wifi strength using any kind of hardware mod? smthg like this for axim http://tinyurl.com/sbf3v so i can connect any wifi antenna...
well guys, i was a bit large writing this post but id reeli want to know of theres any possibility to get better wifi signal...
thanks

Network bars dropping

Since i installed Froyo i only get 0-2 bars in my house. Was usually 5 bars pretty much all the time. I'm with T Mobile and it was fine for the last couple of months. Was with o2 before that and again was always 5 bars.
It could show 3 bars, then i pick it up and it instantly drops to 1.
Anyone else seeing this?
Did u flash also the new radio?
Sent from my HTC Desire using XDA App
What's that? All i did was install 2.2 from HTC.
i think the 2.2 (froyo) update will also automaticly update the Radio...
anyone else with that dropping radiosignal issue?
*i didnt recognize any difference @myhome*
DEATH GRIP!
Are you holding your phone right?
Sent from my HTC Desire
Took a quick video.
the signal bars on any phone are meaningless non standardised crap.
for comparisons always use signal strength in terms of dbm and asu. you can see this on your phone. go to menu > settings > about phone > network. that will show the readings in dbm and asu. for any meaningful comparison you need to use those readings as the bars on most phones are garbage non standardised depictions.
or there could be a network that developed recently in your area. there are various signal measuring and mapping apps available which might interest some people. not mentioning them to avoid confusing as it is not needed at most times but if interested then can name a few apps.
@ drew2d1
try not to hold the phone by covering the right bottom corner like you are holding the phone in the video it attenuates the signal more on the htc desire in my experience. seeing the network bars shown before you handled the phone, it looks like you are in a weak signal area and my guess is that the dbm is more than 100 with low asu of 5 or less and attenuation can differ in amounts based on how you hold the phone. i have written a long story about this elsewhere.
I'm right handed i can't use it any other way. I've had the phone for a couple of months i would of noticed it doing this before.
It's T Mobile and I'm in North London so fine on the coverage issue.
I can't send messages when it's showing 0 or 1 bar. It's not dropped a call yet though.
-105 dbm 4asu
-99 dbm 7asu
Stays around there. No idea what that means.
Edit: It drops which ever way i hold it. Even lying flat it goes from 1,2,3,2,3,2,1.
I had the same issue when updating to 2.2 and installing the latest radio. For a temp fix, change the data to gsm, using manual mode. This boosted my signal from 2 bars to all.bars. Not the best solution I know.
Sent from my HTC Desire using XDA App
Already tried that. It's on GSM auto (PRL) now.
Recommendation from bubblesmoney on another forum actually
I'm on 3G and the signal has somewhat slightly improved
same here - signal strength has declined massively since my update. now i get 0-1 bars at home and have to switch on wifi for data when the signal was fine before.
in fact it's one of the reasons that i chose my network because the signal strength was good at home. :-(
drew2d1 said:
I'm right handed i can't use it any other way. I've had the phone for a couple of months i would of noticed it doing this before.
It's T Mobile and I'm in North London so fine on the coverage issue.
I can't send messages when it's showing 0 or 1 bar. It's not dropped a call yet though.
-105 dbm 4asu
-99 dbm 7asu
Stays around there. No idea what that means.
Edit: It drops which ever way i hold it. Even lying flat it goes from 1,2,3,2,3,2,1.
Click to expand...
Click to collapse
-105dbm is crap and a weak signal. minimum attenuation i have ever found on the desire by holding the phone is 4dbm and max upto 20dbm but after earlier update it has never been more than 10-11dbm attenuation and now on froyo update a max of 14dbm attenuation. my phone does not have any case or cover etc so those readings are for such a phone.
you lose the signal at -113dbm as background radiation is same and not distinguishable from signal. hence if your attenuation is 14dbm then you would need a minimum of 99dbm (without holding phone) to have a signal while holding phone. if your attenuation is lesser then you can get away with weaker signal. attenuation differs in each persons hand as absorption will vary in each persons hand.
the following links with posts by me might interest you as i have explored this topic in detail and will explain dbm and asu and attenuation etc.
http://forums.moneysavingexpert.com/showthread.php?t=2523297
http://forums.moneysavingexpert.com/showthread.php?t=2581437&highlight=
http://forums.moneysavingexpert.com/showthread.php?p=35179785#post35179785
also i have commented on the anandtech article on the iphone getting a signal till 120dbm. i think the anandtech article made a fundamental error and then said iphone4 antenna is very sensitive in sensing signals till 120dbm unlike other phones. i think that is bollocks due to a fundamental error they made. see page 15 of that article comments section for my comment on this link http://www.anandtech.com/show/3821/iphone-4-redux-analyzing-apples-ios-41-signal-fix see extract from my comment there
"On GSM or UMTS frequencies (between 870 MHz to 2170MHz around the world) used the noise signal floor is between -111 to -114dbm. The signal noise floor is that strength at which the signal cannot be distinguished from background radiation.
The signal noise floor depends on the frequency of broadcast and not the device as far as i am aware. So the iphone cannot have a different noise floor compared to other mobile phones, unless Jobs got the governments all over the world to beam a special signal on a different frequency purely for the iphones!!!!
Anandtech has made a basic error in this analysis i think and consequently this whole article is wrong and meant to favour the iphone either inadvertantly or deliberately.
see post number 57 on the thread in this link for my explanation why this anandtech article is wrong http://forums.moneysavingexpert.com/showthread.php?p=35179785#post35179785
please note that -113dbm (some resources say -111 instead of -113) is the noise floor where signal is indistinguishible from background radiation. look it up in science webpages if you doubt what i say. so if the iphone shows signal to be -120dbm then that is an error. just because it shows a number does not mean that the -113 noise floor value does not exist in physics for gsm broadcast frequencies. http://en.wikipedia.org/wiki/Johnson–Nyquist_noise
see gsm freq bands for the world here http://en.wikipedia.org/wiki/GSM_frequency_bands the freq bands (GSM AND UMTS) used in uk are between 870 to 2170MHz and for that the noise floor is between -111dbm and -113dbm and for the noise floor to be 120dbm the freq would have to be in 180kilohertz which is !!!! and bull as the freq bands used are in MHz so the anandtech numbers dont add up in the 120dbm small print, as there is no 180kilohtz band for gsm in usa or uk as far as i can tell!!!! and 180khz is the freq used for AM band radio and looks like the iphone4 is getting interference from 180khz AM band radio signals too as far i can tell from what anandtech says about 120dbm etc !!! yikes!
I would be happy to be proved wrong and to learn, but from what i have shown i am right! Noise floor depends on the frequency band of transmission rather than circuitry. In the UK Cellular mobile services operate within the frequency ranges 872-960 MHz, 1710-1875 MHz and 1920 - 2170 MHz so the noise floor would be between -114 to -111dbm.
It would be similar in the USA too.
see the rest of my detailed response elsewhere on other forums (post 57 of the thread on the link) http://forums.moneysavingexpert.com/showthread.php?p=35179785#post35179785
I hope there is a response to this comment of mine, from this articles writers or some other RF engineers, as due to the reasons quoted in my ananlysis i think this article by anandtech is grossly wrong. I would be happy to stand corrected if my analysis is wrong.
yes the signals can be sensed at -120dbm but that wouldnt be signals from commercial GSM or UMTS signals, it would be some other signals sensed by the iphone4 sensors and giving a wrong reading of the signal strength. As i said earlier the signal noise floor depends on the broadcast frequency and not the handset, so this article is wrong and grossly so as it is making assumptions of the iphone4 being able to sense GSM / UMTS signals of the order of 120dbm which isnt possible for the frequencies broadcast as per the physics involved. http://en.wikipedia.org/wiki/Johnson–Nyquist_noise that or Jobs and anandtech found some way to defy physics!"
It was fine before i installed Froyo.
Jobs doesn't need to defy physics, he's ok with his RDF
Tmobile, london here. Also experiencing 3g signal drop after update. At home on 2.1 i would have 3 to 4 bars, now on 3g its either zero or 1.
Have been contacting HTC with this problem and got the answer that it is because of the new setup of the cpu speed. They have lowered the cpu frequency and the radio is searching for a signal with the lower power. They have promissed me to fix it. They said that also for this issue they have stopped the froyo rollout and are now under fixing the issues. So expect the fox soon.
Sent from my ZX Spectrum using Froyo_zx81
Seems to be working fine now. Full bars, no drops, 64dbm 22 asu.
drew2d1 said:
Seems to be working fine now. Full bars, no drops, 64dbm 22 asu.
Click to expand...
Click to collapse
What did you do to fix the issue? I'm on T-Mobile (UK) too and as other have noticed a significant drop in signal after the 2.2 update.
I also would be interested in how you fixed the problem. I dropped an email to HTC today, so I will post the response when I hear back from them.

Professional from Network side..!

hi i just joined XDA as i am having problem with galaxy s2 i9100m like gprs/edge issue, yellow tint, not updating from keis.
i found people here are developrs from software side and knows less from network side. so i want to help u people from the network side as i am a VIP member at finetopix.com (a premier telecommunication forum) and have lot experince in 2G and 3G technology on Radio.
e.g. what signal is bad what good, signal quality parameter, cell reselections etc.
fell free to contact me here or on finetopix.
good day.!

Problem with IMEI and signal

Hello I bought an used ATT Note4 unlocked and I use it with TMobile. I have two problems maybe related. I have very low signal and the phone dont connect in my home and my previous phones didnt have that problem. In works in other places but you know it disconnects inside buildings and low signal areas. I was thinking in flash a TMobile modem and I think its not possible. The other problem is the IMEi that shows in settings is not the same as the sticker behind the battery so something has be done to the phone. Its possible to fix the IMEI to the real one?
Thanks a lot.
It might be a fake, install cpu z and compare the hardware results to a real one

Question Samsung Galaxy A54 - mysterious issue with LTE signal strength

Hello team,
I have a question regarding the Samsung Galaxy A54 smartphone. I've noticed that the LTE 4G signal is weaker on SIM 2 compared to SIM 1. SIM 1 and SIM 2 have different operators, and it's not surprising that SIM 1, usually having a better network, shows a stronger signal. The problem lies in the fact that I previously had the Samsung Galaxy A52S, and in the same location, it showed a signal strength of -96 dBm and 42 asu, while the A54 shows -106 dBm and 36 asu, one bar less than the A52S. So, it's the same SIM card (which is essentially new, received it about 30 days ago), and I've had the A54 for about 15 days now.
To sum up, the phone is new, the SIM card is new, the phone works perfectly fine (except for the issue with Bluetooth disconnection in the car, which is likely due to the car's 2012 Bluetooth system being only for hands-free calls), there are no damages (it's a new phone, there's nothing to discuss in that regard). I'm just curious about this LTE signal strength issue.
Now, I don't know if there's a possibility that the algorithm displaying LTE signal strength is more accurate on the A54, showing a more precise strength compared to the A52S? Is it possible that there's a firmware bug that could be fixed in the future? Could it be that the A54 has a different manufacturer for the LTE modem compared to the A52S, resulting in different signal strengths and so on? I don't know any of this, so I thought I'd ask here if there's anyone with a deeper understanding of the architecture and hardware of the A54? Official specification lists don't provide this information, and since my phone is new, I would really like to solve this "mystery."
Regarding other differences between these two phones related to this issue:
On the A54, both SIM cards can connect to 5G, while on the A52S, only the SIM card with mobile data enabled could do so.
The A54 uses the Exynos SoC, while the A52S uses the Snapdragon SoC.
Could anyone know what the issue might be?
Thank you very much

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