Messages per Month
121 messages in org.openmoko.lists.hardwareRe: GSM-noise "buzz" issue| From | Sent On | Attachments |
|---|---|---|
| 1 earlier message | ||
| Joerg Reisenweber | Aug 5, 2008 8:26 pm | |
| Joerg Reisenweber | Aug 11, 2008 5:06 am | |
| Ole Kliemann | Aug 11, 2008 9:39 am | |
| Joerg Reisenweber | Aug 12, 2008 3:54 am | |
| Candy Chou | Aug 12, 2008 4:06 am | |
| Andy Green | Aug 12, 2008 4:35 am | |
| Candy Chou | Aug 12, 2008 4:55 am | |
| steve | Aug 12, 2008 9:27 am | |
| Joerg Reisenweber | Aug 26, 2008 5:22 am | |
| Torsten Sievers | Sep 11, 2008 4:35 am | |
| Angus Ainslie | Sep 11, 2008 6:03 pm | |
| Angus Ainslie | Sep 11, 2008 6:12 pm | |
| Andy Green | Sep 12, 2008 12:27 am | |
| Joerg Reisenweber | Sep 12, 2008 6:19 pm | |
| Joerg Reisenweber | Sep 12, 2008 7:32 pm | |
| Angus Ainslie | Sep 15, 2008 8:15 pm | |
| Andy Green | Sep 16, 2008 6:23 am | |
| Angus Ainslie | Sep 16, 2008 7:24 am | |
| Joerg Reisenweber | Sep 16, 2008 2:28 pm | |
| Andy Green | Sep 17, 2008 1:41 am | |
| Joerg Reisenweber | Sep 17, 2008 8:27 am | |
| Andy Green | Sep 17, 2008 8:55 am | |
| Joerg Reisenweber | Sep 17, 2008 10:11 am | |
| Angus Ainslie | Sep 17, 2008 12:00 pm | |
| Andrew Bruno | Sep 17, 2008 1:04 pm | |
| Werner Almesberger | Sep 17, 2008 3:04 pm | |
| Joerg Reisenweber | Sep 17, 2008 5:39 pm | |
| Werner Almesberger | Sep 17, 2008 9:27 pm | |
| Torsten Sievers | Sep 17, 2008 11:00 pm | |
| Uwe Klein | Sep 18, 2008 12:54 am | |
| Andy Green | Sep 18, 2008 1:51 am | |
| Joerg Reisenweber | Sep 19, 2008 10:14 am | |
| Werner Almesberger | Sep 19, 2008 10:58 am | |
| Joerg Reisenweber | Sep 19, 2008 11:17 am | |
| Joerg Reisenweber | Sep 19, 2008 11:35 am | |
| Werner Almesberger | Sep 19, 2008 12:41 pm | |
| Florian Zeitz | Sep 19, 2008 1:23 pm | |
| Werner Almesberger | Sep 19, 2008 1:56 pm | |
| Esben Stien | Sep 19, 2008 2:22 pm | |
| Joerg Reisenweber | Sep 20, 2008 8:33 am | |
| Andy Green | Sep 20, 2008 8:35 am | |
| Joerg Reisenweber | Sep 20, 2008 9:00 am | |
| Andy Green | Sep 20, 2008 9:07 am | |
| Werner Almesberger | Sep 20, 2008 1:13 pm | |
| Werner Almesberger | Sep 20, 2008 1:19 pm | |
| Werner Almesberger | Sep 20, 2008 1:31 pm | |
| Joerg Reisenweber | Sep 20, 2008 2:15 pm | |
| Werner Almesberger | Sep 20, 2008 2:45 pm | |
| Joerg Reisenweber | Sep 20, 2008 3:10 pm | |
| Werner Almesberger | Sep 20, 2008 5:54 pm | |
| Andy Green | Sep 21, 2008 1:13 am | |
| Uwe Klein | Sep 21, 2008 1:47 am | |
| Andy Green | Sep 21, 2008 2:10 am | |
| Uwe Klein | Sep 21, 2008 2:27 am | |
| Andy Green | Sep 21, 2008 2:41 am | |
| Werner Almesberger | Sep 21, 2008 6:29 am | |
| Uwe Klein | Sep 21, 2008 6:36 am | |
| Werner Almesberger | Sep 21, 2008 7:18 am | |
| Werner Almesberger | Sep 21, 2008 7:22 am | |
| Joerg Reisenweber | Sep 21, 2008 3:18 pm | |
| Joerg Reisenweber | Sep 21, 2008 3:55 pm | |
| Joerg Reisenweber | Sep 21, 2008 4:33 pm | |
| Joerg Reisenweber | Sep 21, 2008 4:42 pm | |
| Werner Almesberger | Sep 21, 2008 4:51 pm | |
| Joerg Reisenweber | Sep 21, 2008 6:08 pm | |
| Torsten Sievers | Sep 21, 2008 11:32 pm | |
| Andy Green | Sep 22, 2008 2:34 am | |
| Andy Green | Sep 22, 2008 2:46 am | |
| Uwe Klein | Sep 22, 2008 5:37 am | |
| Werner Almesberger | Sep 22, 2008 5:41 am | |
| Andy Green | Sep 22, 2008 5:47 am | |
| Uwe Klein | Sep 22, 2008 5:52 am | |
| Joerg Reisenweber | Sep 22, 2008 6:34 am | |
| Uwe Klein | Sep 22, 2008 6:54 am | |
| Andy Green | Sep 22, 2008 7:03 am | |
| Andy Green | Sep 22, 2008 7:10 am | |
| Andy Green | Sep 22, 2008 7:21 am | |
| Uwe Klein | Sep 22, 2008 8:12 am | |
| Joerg Reisenweber | Sep 22, 2008 9:04 am | |
| Joerg Reisenweber | Sep 22, 2008 9:14 am | |
| Uwe Klein | Sep 22, 2008 9:18 am | |
| Joerg Reisenweber | Sep 22, 2008 9:48 am | |
| Andy Green | Sep 22, 2008 9:49 am | |
| Joerg Reisenweber | Sep 22, 2008 11:09 am | |
| Werner Almesberger | Sep 22, 2008 3:41 pm | |
| Andy Green | Sep 22, 2008 4:02 pm | |
| Werner Almesberger | Sep 22, 2008 4:11 pm | |
| Andy Green | Sep 23, 2008 2:29 am | |
| Werner Almesberger | Sep 28, 2008 7:38 pm | |
| Andy Green | Sep 29, 2008 12:53 am | |
| Florian Zeitz | Sep 29, 2008 9:20 am | |
| Andy Green | Sep 29, 2008 9:51 am | |
| Florian Zeitz | Sep 29, 2008 10:08 am | |
| Joerg Reisenweber | Sep 29, 2008 11:34 am | |
| Werner Almesberger | Sep 30, 2008 5:48 pm | |
| Joerg Reisenweber | Sep 30, 2008 8:34 pm | |
| Torsten Sievers | Oct 9, 2008 12:25 am | |
| shaw...@gmail.com | Oct 12, 2008 5:03 pm | |
| Joerg Reisenweber | Oct 12, 2008 5:18 pm | |
| Joerg Reisenweber | Oct 12, 2008 5:43 pm | |
| 20 later messages | ||
| Subject: | Re: GSM-noise "buzz" issue | |
|---|---|---|
| From: | Werner Almesberger (wer...@openmoko.org) | |
| Date: | Sep 20, 2008 5:54:08 pm | |
| List: | org.openmoko.lists.hardware | |
Joerg Reisenweber wrote:
Clock-harmonics and the like are a completely different story, and also the clock frequency itself could create noise if a clocked component is placed inside audio can, not only it's harmonics.
Yes, that's what I meant: noise we generate in the CPU can sneaking out and, say, hitting GPS. Given the current poor RF design, this is probably already happening, it's just not bad enough that it would lead to something clearly visible as a failure.
We could actually test this: rework a device such that only GPS is powered and communicate with GPS from a remote system (over a properly exorcised cable). Then compare the performance between this system and a regular device.
Ah, so many ideas, so little time ... and so few devices to slaughter ;-)
- Werner
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