yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] shoman94:
I pretty stoked about this modern don't get me wrong... And I don't mind it camping on 1900...as long as it doesn't interfere with sending data.....so while it's camping on 1900 at -113db it won't. So right now I'm forcing it on 850 but I shouldn't have to.
[Captivate Android Development] grkmaster:
Literally here at my job, i switched the side of where my phone is with just switching hands.. i go to the left it goes to 1900, i put it to the left it goes to 850. both aroudn the -94 mark. Picture below shows on left side how badly my battery was draining. This is on KC1. Pretty much b/w 12:45 pm and a few minutes ago. Edit: I found a good spot! Right in the middle it stays on 850 b/w -79 / -89.. To bad I cant keep it like this the whole time
[Captivate Android Development] {Angel}:
Anybody comment on battery usage. Idle, in use and what type of setup you have or comparisons with your previous modem.
[Captivate Android Development] {Angel}:
For those that have asked i will share the ubjp9 modem tonight when I get home.
[Captivate Android Development] Madtowndave:
Long time lurker on this thread...

So quick question regarding flashing the KC1 modem. I'm currently on Andromeda 3, running JK4 modem.

From what I'm gathering here, I shouldn't need to run the trick in Shoman94's sig since 850 should be enabled by default on the KC1?

So this would be straight up flash via CWR, then verify (*#0011#) and/or change (*#2263#) my settings as necessary?

Thanks in advance
[Captivate Android Development] perosredo:
Yup. I had/have the same setup.
[Captivate Android Development] eliminat:
Correct. KC1 flashes correctly, unlike some of the others switches between 2G/3G automatically for me, and doesn't require the "trick".
[Captivate Android Development] Madtowndave:
Sweet, thanks guys! Sounds like feedback thus far is kc1 pretty solid but not sure on battery use?

On jk4 my gps and signal hasn't been as good as it was on jl2, so I may go back to that if kc1 doesn't work or if battery is miserable.

i897 running Andromeda 3
[Captivate Android Development] shoman94:
So far battery is excellent. On par with JPG, JVK

Like others said... just flash away.

Battery life is better than JL2 and JK4.

UGKC1 is the new goto modem IMHO. Data is fast, sound quality is better than JVK (just barely), battery usage is on par with the best modems and better than JK4 and JL2. I'm recommending this modem for everyone.
[Captivate Android Development] jaxf250:
@shoman94 Thanks... been on jk4 way too long b/c everything else was not working for me for one reason or another... will test out tonight and tmrw.... flashing now!
[Captivate Android Development] harpo1:
Well for me living in Northern California KC1 is great. Downloads speeds average 3.5Meg and upload 1.5meg. The only other modem that came close to this or maybe just a little higher was JVK. Call quality and reception is much better on KC1 so for now this is my daily driver.
[Captivate Android Development] aalh:
apparently I live in a 1900 zone

in my town my phone is usually on 1900

even when I flash KC1 I boot into 1900

what is bad about 1900? does it use a lot more power to be on 1900 than 850?
[Captivate Android Development] harpo1:
Nothing wrong with 1900. If your phone works well don't worry about it. 850 is a lower frequency so it can penetrate buildings better. Download speeds are pretty close in comparison.
[Captivate Android Development] nappent:
For KC1 Data speed do seem to be on par with XXJQ1 the last modem I was using. I noticed after the flash and reboot there was 3 more bars on my reception. I haven't tested out call quality yet but I've not really had any problems with that. I'm more concerned with GPS tracking. The latest modems I've tried tend to have a hard time getting a lock and staying locked when traveling in the highway or within 50 yards of tall building. I had my phone on a windshield mount. I'm going to test KC1 and see how it works. TLJL3 always gave me the best GPS results so we will see how it compares.
[Captivate Android Development] disellusional:
How do you test these parameters?

I would like to find out so I can test for my area

battery/signal/call quality etc.
[Captivate Android Development] shoman94:
1900 has a shorter wavelength which is better in city environments and requires a shorter tower spacing to work properly. As harp stated, 850 is a longer wavelength and penetrates in buildings better and also travels further from the tower. Not all areas will have 850 as there is only 2 licenses per zone available. So depending on which carriers own them the other carriers will be on 1900 instead. So chances are you are in an area that doesn't have 850.

In a nutshell.... I'm sure you can find more detailed info online.
[Captivate Android Development] harpo1:
By testing other modems and comparing them. As far as speed download a speedtest program from the market.
[Captivate Android Development] shoman94:
Well.... speed test on the same server at midnight for full out data speed.

Call quality I test using my voice mail system. I send myself a voice mail in a quiet room and record each modem and listen to them over and over. Then I do the same while on the highway at 73mph test the call quality with lots of background noise.

Signal is tested at my work in a 500,000sq/ft steel building with concrete inner walls. I test data usage a very low signal (-110 to -105db) using XDA app checking for timeout errors etc... Along with voice calling.

That's it... I think I'm pretty detailed covering all the bases.
[Captivate Android Development] Nucleartx:
After a full day compared to JVK:

-battery life is close to JVK, slightly less

-louder call volume, better quality

-doesn't hold onto signal in weaker areas, data timed out for me in a weak area where most other modems kept going
[Captivate Android Development] caanda45:
Shoman where do u look or which app do you use to get the db`s?

KC1 is really nice going to test it with Onix...lol can`t beleive I am going to do that, are u still on 2.02 or 2.03?
[Captivate Android Development] WickedNite:
So same magic steps for flashing KC1 or just regular flashing will do?

Captivate, Serendipity, XDA Premium
[Captivate Android Development] harpo1:
Regular. It has 850 by default.
[Captivate Android Development] shoman94:
I think you'll be impressed.....

I had this issue if I left it in auto... 850 only took care of that.... not really what I want. JVK held 850 better in auto for me than KC1. It seams we can't have it all. There is always something.... Man I wish I knew the settings in the binaries....

I'm on Speedmod k13d-500hz at the moment until Onix releases another. Without over clocking speedmod was faster.

For signal strength... in the dialer type *#0011#
[Captivate Android Development] caanda45:
If you want native 850 no trick is needed just flash, works well here in Canada where we are wcdma 850/1900.

Anyone has or can direct me to a quick graph on db`s and what is good or not, I have picked up some information here on the postings, but Shoman has made me to want to test and maybe put a few numbers down here on these modems we are playing with!!!!!
[Captivate Android Development] fractaline:
Very simply put, -50 is as good as it gets.... -120 is the worst before no service....

When you use the gsm status code you'll s see that you have full bars until about -90 or -95..

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] VFO:
shoman94 where abouts are you in Maine? I live in western Cumberland County and work in Westbrook and the reports you give are much better than what I average. Right now I am running Continuum V4 with JVK and the best I have seen was camping out in a Hannaford parking lot within sight of the tower and running speed test I maxed out at 1.6 down and .7 up. I usually am on wifi for the most part so I don't go to mobile data to often so maybe its just the times I am trying it at. I also wanted to give my appreciation to you as well as the OP for this thread and the great info within it.
[Captivate Android Development] shoman94:
Yea the bulk of the network is usually setup to stay above -110db.... you will not get any data to work below -110db. I've had clear voice calling at -115db at times. Usually the best I see is -50's driving by a tower. Doing full out spped test you want to find a spot that gives you better than -80db to get your highest speeds. In my testing... the sink in my bathroom nets -78db in 1900 and -65db in 850mhz.
[Captivate Android Development] shoman94:
My speed test get done at my house in Saco. Bird flight I'm a mile from the tower. I get the max speeds at midnight with no load on the networks.

Like right now its 7.37pm and I'm getting 2.24mbps DL and .89mbps UL in 1900mhz. Not as good as midnight....lol

I thank you for the kind words....
[Captivate Android Development] caanda45:
Okay one thing that is not clear to me is if it is real good at -50, why is the bulk of the network not closer to that? Or is voice better at a lower db, and data at a higher db rating?
[Captivate Android Development] harpo1:
Because they have to install a ****load of new towers to have a -50db signal across the board.
[Captivate Android Development] shoman94:
When I say higher... I mean a lower number. -90db is a higher signal than -100db for example.

What I was saying was that the signal is usually higher than -110db
[Captivate Android Development] WirelessMike:
I tested kc1 against jk4 all day yesterday. The results many of you are getting must be unique for your location (and that makes sense), because for me, kc1 is barely a competitor.

Data speeds were not as good (often half what I got with jk4), and gps was about the same. Sound quality over bluetooth was very good, but not that distinguishable from jk4.

I was sincerely hoping for better, but due to the considerable drop in data speeds, I have to stick with jk4 (for now).
[Captivate Android Development] shoman94:
Make sure you test them the same time. Keep phone on the table in the same spot while running the speed test. Flash one.... run 5 tests with the closest server and then the other modem and do the same. This is to rule out network slow downs that can happen from day to day.
[Captivate Android Development] slaman:
Is KC1 a reliable GPS modem?

I've had pretty bad performance with JK4 and to some degree JL2, despite those two being rated the "best"... it drops randomly... it thinks that I'm off-road a lot of time... and when it's cloudy, the problems intensify.
[Captivate Android Development] WirelessMike:
When I tested it yesterday against my rom default modem, jk4, kc1 was very accurate and dependable regarding gps. At lease as accurate as jk4, with slightly faster locks.
[Captivate Android Development] Ikonomi:
I think the answer to this question really depends on your particular Captivate. My phone, for example, gets BY FAR the best GPS performance on JQ1. You may have to test out a few of the newer modems to find one that works the best for you.

Perception 10.2 | SpeedMod K13D | I9000XXJQ1
[Captivate Android Development] WirelessMike:
Test results have changed my mind

Excellent suggestion.

Attached are some test results from this morning.

After testing as suggested, I have come to the conclusion that the 2 modems are actually much more comparable than I at first thought, with the kc1 showing a bit more consistency.

Thank you for suggesting I run this test. Considering the slightly faster gps locks, the more consistent data speeds and the excellent clarity and volume over bluetooth, my opinion has changed and I am going to stick with the kc1 modem for now. :)
[Captivate Android Development] psloan:
I have been using kc1 for two days now. I am not that impressed with the gps. I thnk jq1 and jvk are better for gps. At least for my phone.
[Captivate Android Development] {Angel}:
How are you guys seeing battery usage when using data? I have flashed so much stuff I think I need to recalibrate my battery.
[Captivate Android Development] H3llstorm:
Here's how I improved my GPS reception & accuracy.

1. I installed Adam's GPS Fix

2. I installed the BUJS1 modem, and left it on WCDMA 850 rather than automatic.

3. In SGS Tools > LbsTestMode I'm using the following settings:

Application Settings: Tracking, S/W Test, Standalone, Hot Start, On, On, 30, Off

SUPL/CP Settings: Custom Config, supl.google.com, 7276, off, SUPL

I'm getting fast locks and 5m accuracy (even indoors, by a window) with SGS Tools Get Position Test, GPS Status, Google Navigation.

I haven't found another modem (or combination of settings) that locks the GPS at 5m accuracy for any useful amount of time.
[Captivate Android Development] WirelessMike:
I've been using jk4 and while I haven't used the gps very much since flashing kc1 again, it appears about the same.

That said, I don't know what jq1 and jvk are capable of concerning gps. If they are noticeably better than jk4, your assessment is probably fair.
[Captivate Android Development] Pierce533:
I've been using KC1 now for about two days. I think it is much better than what I was using before, JK4. I am getting better signal and better sound quality. I haven't messed around with BT yet, but overall I like KC1 and think it would be a great JK4 replacement for devs. Battery on KC1 has been great, too.
[Captivate Android Development] Marc-Sch:
The GPS stability is very better than JQ1, in my region(Switzerland) . Call are stable and clear. Battery Drain is a little worth than JQ1.

Galaxy & Darky's v9.5 & Damian 1.3 b1
[Captivate Android Development] perosredo:
I agree and Andromeda3 has just been updated to KC1; although it won't be packaged-in until tomorrow night's build.
[Captivate Android Development] shoman94:
I agree and I'm sure that will happen.... But I personally will be sticking with jvk.
[Captivate Android Development] shoman94:
I find heathens gps fix from the i9000 forums to be the most effective.
[Captivate Android Development] H3llstorm:
Adam's GPS Fix works without the hardware fix linked to in that thread.
[Captivate Android Development] TRusselo:
i tried kq1 last night

couldnt get 850 band to work

1900 only and it sucked!!!

this thread is supposed to be 850 enabled right?

back to jk4
[Captivate Android Development] {Angel}:
You mean jq1?
[Captivate Android Development] shoman94:
I didn't use a hardware fix.
[Captivate Android Development] shoman94:
Look at my sig and flash per the instructions in that link.
[Captivate Android Development] fractaline:
these are not all native 850 modems....

try again using the instructions in shoman94's sig...

there is much better than jk4 out there. it's worth it....

kc1 is native if you don't want to bother with the sequence.
[Captivate Android Development] H3llstorm:
Hey shoman94, have you ever tried this app?

http://www.appbrain.com/app/how-is-my-signal/com.techievarta.signal
[Captivate Android Development] shoman94:
I've tried a couple similar but they wouldn't work correctly with (3G)WCDMA...., had to put my phone in (2G)GSM. I haven't looked into it now for over a month so I'm not sure if there are updates to the apps.

I think the one you linked only works on CDMA..(ie.verizon).
[Captivate Android Development] Oxicottin:
Showman..

1) whats the best modem you tested for low signal?

2) what are you using to test speeds?

3) I have CWM the PlumBob fix so if I decide to change my modem again does it remove the PlumBob fix. Also, is that the best one out there for the captivate?

Sent from my SAMSUNG-SGH-I897
[Captivate Android Development] psloan:
I searched... but could not find. do you have a link to said fix? I switched back to jvk this morning as kc1 gps sucks for me in the Seattle area on kc1.
[Captivate Android Development] Oxicottin:
I found it for you!
[Captivate Android Development] H3llstorm:
Has anyone had any luck changing these settings?

http://xdaforums.com/showthread.php?t=1021553
[Captivate Android Development] shoman94:
I'm gonna look at it tonight.
[Captivate Android Development] shoman94:
1. My best has been jvk

2. Speed test app

3. It should remain but it's no big deal to just re-flash.
[Captivate Android Development] Oxicottin:
how do i go back to the origional settings?

Sent from my SAMSUNG-SGH-I897
[Captivate Android Development] soupman147:
Hey all,

I'm getting amazing reception on JVK but horrific battery life (12 hrs) vs JL2 which gives about 35-40 hrs battery and significantly worse reception. Can anyone suggest a compromise?
[Captivate Android Development] fractaline:
it takes some time to "settle in" especially after flashing a new rom or kernel, give it a few full/charge drain cycles and wipe battery stats in recovery,,,

i get great battery life on jvk. it is far superior in idle than the older ones...
[Captivate Android Development] bballer182:
KC1

10char
[Captivate Android Development] sicmadek:
I know everyone wants 850 for data speeds. I have always just left it on automatic wcdma but which gives better battery life? 850 or 1900?
[Captivate Android Development] fractaline:
I believe it's not the band that's used as much as the modem's tendency to switch between bands or look for a better signal that effects battery life.

That's my understanding..

in my locale my phone never switches, yet some modems are drastically better in idle than others.....

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] perosredo:
I concur--based on my experience.
[Captivate Android Development] {Angel}:
So here is another 850 native modem ubjp9 from a recent 2.2.1 update.

http://www.mediafire.com/?84b919ccr91p7b3

Cheers
[Captivate Android Development] harpo1:
What's your thoughts on it compared to KC1?
[Captivate Android Development] KingMetal:
What is the best modem for west europe?
[Captivate Android Development] {Angel}:
To be honest I did not use it long enough. Just a couple of.hours so I cant form an opinion. I did not notice anything obviously wrong with it. give it a go
[Captivate Android Development] {Angel}:
You can also try jjpg. Shoman hated sound quality but for the life of me I hear it just as good as kc1 and found a good signal quicker. Much depends on a lot of factors.
[Captivate Android Development] {Angel}:
Maybe JQ1 or jvk.
[Captivate Android Development] MPKO:
Phone is just measuring the quality of the radio environment and network makes the decision when to change the frequency or not. Of course, if the sensitivity of the radio receiver in phone is weak then also the measurement what was send by the phone was bad and network triggers the inter freq handover too early...

Cheers
[Captivate Android Development] TonyStark R.I.P.:
So is it best to lock into one or two bands instead of automatic? say like 850 & 900 (1,2,7&8 in band selection US AT&T)
[Captivate Android Development] shoman94:
I've tried it both ways and I can't tell a difference.
[Captivate Android Development] perosredo:
Does the rate of the frequency changeovers have any affect on battery life?
[Captivate Android Development] MPKO:
Yes it does. when phone is on boarder of two freq it has to measure those both freq at the same time (called compressed mode) and this is one of the worst thing for the battery life. But it is good to remember that forcing phone only to one freq is also bad for the bat and not really solving anything since you have bigger possibility to be on the cell edge where you have bad throughput and bad battery life. Best to keep your phone in auto mode.

Cheers
[Captivate Android Development] shoman94:
Thanks, I always felt my overall performance in these modems were best had in Auto.
[Captivate Android Development] TonyStark R.I.P.:
The rom I am using had modem UGJK4 and with it my connection was lost in many areas near me. Though the coverage wasn't the best the batt life was phenomenal. I read a bit on new modems and found that the XXJVK would probably work as well with better reception Well reception is better but battery life :eek::eek::eek::eek: so why and what can I do?

Thanks,tomween1
[Captivate Android Development] ccdoggy:
try a variety of modems and see what happens. Some are awesome for certain people, and some are terrible. just have to give them a shot and see what happens.

I started messing with modems and am not convinced that most of my power usage is from the modem (other then display).
[Captivate Android Development] LNJ:
Can't flash in recovery. Maybe it was a bad download. Can you re-upload somewhere else?

Sent from my GT-I9000
[Captivate Android Development] white00gt:
download worked for me,Try this,
[Captivate Android Development] {Angel}:
Sorry, looks like I forgot to sign it. I attached the correct one here.
[Captivate Android Development] TonyStark R.I.P.:
That being said, why are there so many and are they all for Captivate?
[Captivate Android Development] shoman94:
I have relativity the same batter life with JVK, JPG, JS1 and KC1... all good as well. Did you just flash a rom or kernel as well?
[Captivate Android Development] fractaline:
They are mostly from i9000 updates...

We just can't stop f'ing with our phones.

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] shoman94:
No kidding huh.... wife has been jealous lately
[Captivate Android Development] fractaline:
LoL... I can stop if I want to........

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] LNJ:
Thanks that one worked.
[Captivate Android Development] uhavinalaugh:
Is it common to flash a modem and then have terrible battery life the next day? I was using JK4 for a few days on a fresh flash of Serendipity 6.3, battery life was pretty good. I could go all day (business day) with quite a bit of screen time.

I charged up my phone last night, flashed KC1 and then overnight it went from ~90 percent down to 20 percent. Put it back on the charger for an hour, got it up to ~70 percent. That was at 8:30 am, around 5pm the phone died.

I'll give the modem a few days to see if it will correct itself.
[Captivate Android Development] shoman94:
Interesting....I've never had that happen to me... sounds like a fluke. Look in spare parts and look at the battery history to see what is causing the drain.
[Captivate Android Development] kb9nvh:
Paragon RC6 and modem KC1 are Great for me in southern indiana. JVK was great for about half my drive to work this morning and then signal dropped and nothing I could do would bring it back...reflashed KC1 and back in the cat birds seat!! JK4 was always pretty good but seemed to drop out allot.

GPS still pretty fair but no comparison to garmin (but not unuseable). I cleared all caches each time.
[Captivate Android Development] {Angel}:
No thats not common, have you installed any apps in the same timeframe? You can try reflashing and some people also clear dalvik cache in case of odd behavior.
[Captivate Android Development] {Angel}:
Great let us know how it works out for you.

I've been using it for a few hours and I can't find anything to complain about. Battery seems very good both idle and in use, call quality is loud, maybe louder than KC1 for me, but maybe a tad not as crisp as some of the other modems but I am still on the fence about this. GPS was excellent, lock in 8 seconds 10 meter acuracy but then again I have never had GPS problems with any modem. I have not tried wifi, BT or done any speed tests (regular use with no problems though)

Anybody else tried this modem? It is used by Claro brazil and other countries which has a very similar network as AT&T.
[Captivate Android Development] Joecascio2000:
In Upland

I wanted to post my findings. I live in Upland, Ca and got no service in my room with JK4 (Serendipity 6.3) so I decided to flash JQ1 using the 850 method. I finally got service in my room. I later decided to flash KC1 cause it was getting a lot of praise. Did it and I was back down to no service. Time to reflash JQ1.

JK4:

[Nothing, couldn't even text half the time. Had to hold my phone to the window.]

JQ1:

[Solid One/ Sometimes two bars when holding, but on my desk I always got three bars]

KC1:

[Same as JK4, but WiFi wasn't as good.]

Long story short, if your in Upland or the Los Angeles area JQ1 is my suggestion.