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UPDATE: it seems that for some users is needed to do two reboots after each change of prop file.

It seems that is work for most users with rom based on DRC83. It seems that works in US and EU region. Therefore I decided to start separate thread (something was discussed in cyanogen's thread).
I tested it on cyanogen 4.2.7.1 but it should work with other ROMs too. I think that improvement is depedent on presence of HSUPA feature in your network.
Try it and let us to know....

Comparison video - two G1 simultaneously (sorry for poor quality-Nokia)
http://www.youtube.com/watch?v=bskKwh2xBXs

I have found that my cyan G1 is much slower in uplink in 3G network than official TMO EU G1. Same radio but "primary band" (phone info menu) was different....
Cyan (and other US ROMS):
62.50S.20.17H_2.22.1.26l
TMO EU:
62.50S.20.17U_2.22.1.26l

I found difference in build.trout.prop (build.prop - TMO) which make this difference.

Cyan (TMO US):
ro.ril.hsxpa=1
ro.ril.gprsclass=10
TMO EU:
ro.ril.hsxpa=2
ro.ril.gprsclass=12

I changed values in build.trout.prop.... TADAAA
62.50S.20.17U_2.22.1.26l is showed in phone info. Uplink is almost three times faster. It seems that is some improvement in EDGE too (gprsclass).

THEORY:
US ROMS has disabled HSUPA feature.
ro.ril.hsxpa=0 - UMTS r99
ro.ril.hsxpa=1 - HSDPA
ro.ril.hsxpa=2 - HSDPA/HSUPA

script which apply all stuff (thanks cloverdale)
note: script use cyanogen build.trout.prop
http://forum.xda-developers.com/show...postcount=7036

or

1) adb pull /system/build.trout.prop build.trout.prop
2) edit with notepad++ (or other unix format capable editor)
3) adb remount
4) adb push build.trout.prop /system/build.trout.prop
5) reboot

in on other roms change build.trout.prop to build.sapphire.prop or build.prop depending which one your ROM using
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5th December 2009, 09:33 PM |#2  
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Hmm. looks interesting, will like to hear feedback from others first.
5th December 2009, 09:58 PM |#3  
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I have **** upload speeds. And my buddy at his house, has really really slow 3g speeds, in some area its fast for him, but at his home, it sucks.

Ill try this right meow.
:holds breath:
5th December 2009, 10:00 PM |#4  
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Hmm Interesting...

Isnt HSUPA for uploads?
so it will only affect upload speeds?

but I'll give it a try anyway
5th December 2009, 10:25 PM |#5  
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Wow, nice find
It did improve 3G speed for me, however not exactly the way i expected - there was only a slight change in upload speed, but a big change in download speeds.
And some numbers showing the change (speed measured with speedtest.net app from market).
Before modification:
d/l [kbps] u/l[kbps]
1340 101
1310 100
1494 106

And after the modification:
d/l [kbps] u/l[kbps]
4025 138
3738 137
3523 138

To keep the test reasonably accurate the phone was just sitting on the desk in exactly the same place during both tests. I did't have full signal reception though so upload speeds may be even higher in places with better 3g coverage.
Doing the modification doesn't seem to break anything and is childishly simple - i just used root mode in Estrongs file explorer to edit the file. In my opinion is worth a shot, especially for those from europe (US roms probably have this disabled for a reason).
5th December 2009, 10:40 PM |#6  
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Quote:
Originally Posted by mr_deimos

Wow, nice find
It did improve 3G speed for me, however not exactly the way i expected - there was only a slight change in upload speed, but a big change in download speeds.
And some numbers showing the change (speed measured with speedtest.net app from market).
Before modification:
d/l [kbps] u/l[kbps]
1340 101
1310 100
1494 106

And after the modification:
d/l [kbps] u/l[kbps]
4025 138
3738 137
3523 138

To keep the test reasonably accurate the phone was just sitting on the desk in exactly the same place during both tests. I did't have full signal reception though so upload speeds may be even higher in places with better 3g coverage.
Doing the modification doesn't seem to break anything and is childishly simple - i just used root mode in Estrongs file explorer to edit the file. In my opinion is worth a shot, especially for those from europe (US roms probably have this disabled for a reason).

Hmm, interesting
your network operator obviously doesn't have HSUPA
my speed was before
2100/340
now
2700/900
BUT I have opportunity to test it in empy cell... in brand new network.
Therefore I tried to find out why was uplink so slow.
BTW: prewious .23 radio has better troughputs than .26I in "H" mode
6th December 2009, 12:44 AM |#7  
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We don't have 3g here so I tested it on edge:

Before mod:
90.7/49.2

After mod:
100.0/40.8
6th December 2009, 12:47 AM |#8  
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I thought Cyanogenmod started off as a collection of the best modifications.
Now everyone is coming out with better modifications to Cyanogenmod files. And they're not included in the newest CM releases.
What's up with that?
6th December 2009, 01:37 AM |#9  
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Quote:
Originally Posted by Proxin

I thought Cyanogenmod started off as a collection of the best modifications.
Now everyone is coming out with better modifications to Cyanogenmod files. And they're not included in the newest CM releases.
What's up with that?

This was discovered yesterday you can't expect that it will be in last version of cyanogen mod. It should be tested for some time anyway. That is purpose of this thread.

Important question is if changing of radio setting has some negative impact to US users. I really don't know why TMO US ROM has different setting than EU ROM setting.
Up to now I see improvement or same but NO degradation and that is very promising...
keep testing...I am waiting for EU users results
6th December 2009, 04:13 AM |#10  
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Quote:
Originally Posted by Proxin

I thought Cyanogenmod started off as a collection of the best modifications.
Now everyone is coming out with better modifications to Cyanogenmod files. And they're not included in the newest CM releases.
What's up with that?

I won't speculate on theory to why Cyanogen isn't respectfully reaching out to improve but I will say that if you want to use an amazing ROM that is truly pushing what your device will do start looking at @wesgarner's HERE. He is doing some great work that is extremely stable and blazing fast.

Build 8 will include a similar if not the same enhancement.
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