Greetings all-
As someone who puts a premium on voice quality, I've tried several different modems. From what I've read, JQ1 gets top honors, but what I've read is now old (in terms of how fast things change around here). JVK came out not too long ago, and I'm wondering what people think about it.
I've noticed, too, that data speeds seem to suffer on the modems that have higher voice quality, and vice-versa. Must it always be a tradeoff?
LLaP
best modem depends on your carrier and geographical location.
there are some standard tests already in charts in many of the modem threads but they are not guaranteed to have the same results for everyone.
start here. http://forum.xda-developers.com/showpost.php?p=12277835&postcount=537
read his sig links too
Related
Ok I've been searching the forums for a while now to find answers to my questions and I've answered a few of them but I think I need a little more advice.
I'm using the HTC Touch Diamond and the Model NO shows DIAM500 on the back I've got MP6950, ROM version is 1.22.557.1, Radio Version 1.03.06F. I'm a CDMA user (Pretty sure anyway) and my carrier is Cellular South.
I love my Diamond it's just my carrier that seems to be a problem. I live out in the boonies so my reception is virtually non-existant at home. Not a major problem but an annoying one. It's not just with the Diamond it's with every cell phone I've ever had. Also the battery life could be better I think, I get about 4 hours with pretty moderate use while I have signal (at work). Haven't really done any tweaking YET but I've started messing around today.
Now this brings me to the reason I'm posting. I was looking into updating my ROM but was not able to download the latest from the HTC site (I figured out why). So as far as ROM's go I'm a little confused with all the custom ROMS posted here, I don't really know which would be best for me and if they will work at all and not screw up my phone. Can anyone offer some advice on what ROM is should use?
And I also want to play around with different Radios because I'm under the impression that it could help my reception issue, and then again it probably won't since I've always had this issue. So has anyone had luck with a certain radio helping poor reception? Is there one that would be better for me than the others?
I'm sure these are fairly regular and annoying questions but I just want to make sure I don't throw away the purchase I just made by updating the ROM and radio.
Most of XDA Forum is not for CDMA.
You can always find custom ROMs. Each ROM is different from the others (included applications and options which affect memory usage and performance). So there really isnt a "best ROM." You can check out the thread for CDMA ROMs and make sure you know how to install new ROMs and that you have the needed applications (HardSPL for GSM I dont know if its the same for CDMA). If you have what it takes you can try several ROMs and radios to find the most suitable one for you. Normally this shouldnt harm your phone unless you dont read well before attempting.
Hope this helps.
so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship
bump
bump for hope.
Gorship said:
so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship
Click to expand...
Click to collapse
First, a modem us the binary file that runs the antenna. So if we were able to control and edit the binary (which we can't) you could potentially make the antenna "work harder".
so a modem works by controlling, software wise, the frequencies the antenna uses. For example, I9000 modems tell the antenna to also pick up hsupa, and that is why I9000 based roms have faster data. The modem needs to also be compatible with the kernel so it can run properly. This is why e can't use modems like JK4 on captivate based Roms.
flashing a modem can increase signal. It is all about where you are though. JK4, which is a great modem in Boston, might not be a great modem in San Francisco, or Detroit.
there is a sticky thread in the development section for this with a website that will help you pick out a new modem. Make sure it is compatible with your kernel first.
Sent from my GT-I9000 using XDA App
There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html
4-2ndtwin said:
There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html
Click to expand...
Click to collapse
as detailed as it can get..thanks for the read...
viny2cool said:
as detailed as it can get..thanks for the read...
Click to expand...
Click to collapse
True... Detailed.. However, mostly irrelevant..
When you flash a modem, you're flashing an operating system for the communications chip. It's an entire stand-alone operating system designed to minimalistically receive and transmit data. The communications chip is capable of running an entire device. This is evidant when you examine the binary. It contains keyboard, mouse and display drivers.
When the Captivate was released, it was released as a 3G device, not H, so its communications chip was configured to work as a 3G modem. This was likely a marketing decision as "3G" was all the rave at the time.
A modem won't improve your reception unless your old modem was configured incorrectly
As far as signal strength, it won't improve unless your old modem was configured incorrectly.
There are several tweaks which are applied in each version of modem firmware for different devices. Unfortunately, the communications chip is locked down/Closed-source Qualcrap.. So, we will never fully understand what configurations are available, nor can we do anything other than test and see which one works more effectively.
hey thank you so much guys, this is really interesting, sadly a little depressing but interesting. i have one last question then, since i am running my i897 captivate... with the ICS rom, does this mean i should use i9000 or i897 modems? i heard that i9000 modems were just better then i897 so i am using them... but if the above is true, i shoud be using i897 to get proper configuration of my device.
you guys are all awesome and ill be mashing the thanks button!
<3 Gorship
U have to use the specific modems for ICS... See here... http://forum.xda-developers.com/showpost.php?p=16843698&postcount=1
And more specifically...See this page... http://soggycashew.weebly.com/cm7miui--ics-modems.html
yea im flashing a few of the ics i897 vs the i9000 i was using... still though... i have full bars with my old blackberry bold 9000 compared to my cappy which has 1 or 2... i dont understand why.
Hey all,
First off, big fan of Oxicottin's work over here:
http://forum.xda-developers.com/showthread.php?t=1227717
but I live in a part of the country where there's still no feedback from anyone nearby as to which modems perform better/worse with radio signal/data/etc. I've tried plenty of modems myself, but they all seem spotty and it's tough to make any kind of legitimate judgment as to which performs best.
That said, does anyone know of any software out there to track modem performance for us? As in, flash modem X, run an app in the background and let it record signal data as you move throughout your day, then do the same thing tomorrow with modem Y/Z/whatever and then after a week you have some solid information.
If not... any brilliant devs out there who want a new challenge? Seems like a tool that could potentially benefit... everyone.
P.S. Yes, I've searched already with no luck (xda, market, google, etc.).
Best thing you can get is speedtest from ookla on the market. You can run it after flahsing the modem and check upload, download and ping speeds. It also keeps a history to make comparisons.
I second this. I think it would be a really useful tool to audit different modems. Speedtest is nice but it doesn't really tell you how good your overall experience will be. If I had any coding knowledge, I would attempt making an app myself, but sadly that isn't the case. Hopefully someone will turn this idea into reality!
definitely appreciate the tip, i'll give it a try. have to say though, i'm one of those weird old-school people who would rather sacrifice data speeds than call quality/consistency (yeah, i know...). but i guess i can just assume that the best data speed also means best general modem performance (not sure if that's true or not but hey, beggars can't be choosers i suppose.)
trying to break this down so that i get my questions answered. here it goes
im running CM9 build 17 all stock. on the optus network in Australia. a bit south of Melbourne but it shouldn't really matter where i am as long at im near major civalisation right? i mean i could go anywhere in aus and get the same results for reception and calls as long as im near the towers?
im looking for a good modem for me to use on the network, i have been looking at the voodoo majick that is nexus s modems and dont want to go there, they look silly. no 2g sometimes and no one is realy testing them. there all getting half baked results. and who knows what problems they havent encounterd yet.
ive tryed a few modems including offical optus modems and they dont seam to be the best performers sometimes. bad batterylife or slower network switching or bad call quality. what bands should i be looking for. i see alot of people looking for 850 bands but i dont think optus uses that one. what networks do here anyway? i know telstra do.
links or information will help give us anything and everything. ie try this/read that so on. i want to be informed for the future as well as a good kick in the general direction of go do it yourself in that direction.
Look for siky_dude 's modem thread, get radio-cm-7-ics-SGS-XWJW1-signed.zip and radio-cm-7-ics-SGS-XXJW4-signed.zip, try them, and read the thread for more info. Also look for the Australian thread. Good luck. And search moar
Hello my fellow XDA members!
So I use the SGH-I897 as my daily driver; I've experimented with many different roms and so far my favorite is the slim bean; however I would like to hear some opinions of modems that are currently being used; favorites, are there certain modems I should be using w/my particular phone now, etc.. Thank you in advance for everyone's time and insight! Oh and I researched what modems do a little bit, but some more detailed info would be great as well; Thanks again everyone!
I'm pretty new to this scene; so if there's anything that I should be doing please let me know as I do not want to upset any of the senior members!
up_on1 said:
Hello my fellow XDA members!
So I use the SGH-I897 as my daily driver; I've experimented with many different roms and so far my favorite is the slim bean; however I would like to hear some opinions of modems that are currently being used; favorites, are there certain modems I should be using w/my particular phone now, etc.. Thank you in advance for everyone's time and insight! Oh and I researched what modems do a little bit, but some more detailed info would be great as well; Thanks again everyone!
I'm pretty new to this scene; so if there's anything that I should be doing please let me know as I do not want to upset any of the senior members!
Click to expand...
Click to collapse
Modem is basically your signal. If your internet speed and your calls are fine, there's no need to change it.
Also, it is quite hard to suggest modems as they will have different strength in different area so when you get bad signal and such, you have to try a few different ones.
If your signal strength and data connections are good there is only one other reason I can see that you would want to change your modem. That would be if your having issues with GPS signal. Of course the cappy is notorious for being less than stellar with its GPS but I once had issues with signal(turns out it was my carrier not my phone) so I flashed a couple different modems. One that I tried completely broke my GPS until I flashed back to what I started with.
That being said the modem you currently have installed is what works best for me and based on various threads and posts its seems to be a favorite.
Sent from my SGH-I897 using xda app-developers app