Re: any update on GSM interference issue

2008-08-06 Thread arne anka
PLEASE NOTE: I'm going to move this thread to [hardware]-ml and join it with another thread of same topic from [support], in a few hours. then i won't read it anymore -- i am already subscribed to community and support and it's almost more than i can read ...

Re: any update on GSM interference issue

2008-08-06 Thread Mike Montour
arne anka wrote: PLEASE NOTE: I'm going to move this thread to [hardware]-ml and join it with another thread of same topic from [support], in a few hours. then i won't read it anymore -- i am already subscribed to community and support and it's almost more than i can read ... The

Re: any update on GSM interference issue

2008-08-05 Thread arne anka
http://gadgets.boingboing.net/2008/08/02/kill-gsm-radio-buzz.html Maybe that could provide a less invasive means to getting rid of the problem? jOERG proposed using a ferrite bead on the wired headset a while ago in a german forum (freeyourphone.de or so). i am still trying to find one

Re: any update on GSM interference issue

2008-08-05 Thread Al Johnson
On Tuesday 05 August 2008, arne anka wrote: http://gadgets.boingboing.net/2008/08/02/kill-gsm-radio-buzz.html Maybe that could provide a less invasive means to getting rid of the problem? jOERG proposed using a ferrite bead on the wired headset a while ago in a german forum

Re: any update on GSM interference issue

2008-08-05 Thread arne anka
The ferrite is increasing the common mode inductance of the cable because the ferrite has a better magnetic permeability than air. Taping the ferrite to the cable is a bit like a half turn on a ferrite rod. It will still affect the inductance, but not as much as if it went through a

Re: any update on GSM interference issue

2008-08-05 Thread Josh Thompson
On Monday August 04, 2008, Andy Green wrote: AFAIK in hardware this should be possible -- BT audio comes in on VX digital interface of WM8753 and there should be a path to get in and out of that to RXN/P pair and MONO1/2 pair. So, I found this:

Re: any update on GSM interference issue

2008-08-05 Thread arne anka
You'll need something like the Alsa state file to configure internal routing to make the connections. i tried the existing gta01 one, but it claimed some incompatibilites (besides the wrong naming in line 1) and did not help anything. AFAIK in hardware this should be possible -- BT audio

Re: any update on GSM interference issue

2008-08-05 Thread Al Johnson
On Tuesday 05 August 2008, Josh Thompson wrote: On Monday August 04, 2008, Andy Green wrote: AFAIK in hardware this should be possible -- BT audio comes in on VX digital interface of WM8753 and there should be a path to get in and out of that to RXN/P pair and MONO1/2 pair. So, I found

Re: any update on GSM interference issue

2008-08-05 Thread Al Johnson
On Tuesday 05 August 2008, arne anka wrote: The ferrite is increasing the common mode inductance of the cable because the ferrite has a better magnetic permeability than air. Taping the ferrite to the cable is a bit like a half turn on a ferrite rod. It will still affect the

any update on GSM interference issue

2008-08-04 Thread Josh Thompson
Has there been any progress on the GSM interference issue (bug #883)? As I understand it, this is the current condition (please correct anything that is wrong): -only some people seem to have a problem with it -the buzzing is only heard by people on the other end -it is a hardware issue -it is

Re: any update on GSM interference issue

2008-08-04 Thread arne anka
Has anyone gotten a bluetooth headset (SCO type) to work with the 2007.2 distro for making calls? nope. i asked a while ago since i understood that there's a direct connection between bt and the gsm chip for this purpose (no need for alsa and it's missing state-file), but never got a

Re: any update on GSM interference issue

2008-08-04 Thread Andy Green
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Somebody in the thread at some point said: | Has anyone gotten a bluetooth headset (SCO type) to work with the 2007.2 | distro for making calls? | | nope. i asked a while ago since i understood that there's a direct | connection between bt and the gsm

Re: any update on GSM interference issue

2008-08-04 Thread Jim Morris
Josh Thompson wrote: Has there been any progress on the GSM interference issue (bug #883)? As I understand it, this is the current condition (please correct anything that is wrong): -the buzzing is only heard by people on the other end I get buzzing at both ends of the call. Has

Re: any update on GSM interference issue

2008-08-04 Thread Chris Wright
http://gadgets.boingboing.net/2008/08/02/kill-gsm-radio-buzz.html Maybe that could provide a less invasive means to getting rid of the problem? ___ Openmoko community mailing list community@lists.openmoko.org

Re: any update on GSM interference issue

2008-08-04 Thread Andrew Bruno
I'm also very concerned with the GSM buzzing. This post mentions that the issue was present in GTA01 and looks like it carried over to GTA02. http://lists.openmoko.org/pipermail/community/2008-January/012382.html The issue has been around for quite some time now. Can anyone from OM comment on