On Tue, Aug 05, 2008 at 07:49:51PM +0800, Joerg Reisenweber wrote: > Am Di 5. August 2008 schrieb Jeffrey Ratcliffe: > > 2008/8/5 Andy Green <[EMAIL PROTECTED]>: > > > Like Ole says when I started looking at it, by calling a landline in the > > > same room and listening to its receiver lying on the desk, it varied > > > tremendously and not in a repeatable way. Eg, it appeared to vary by > > > orientation of the phone, but when I traced the path backwards, the buzz > > > did not return. > > > > OK. Confirming this - the buzzing seems to come and go in waves of > > varying frequency. Even without touching the phone, the buzzing just > > comes and goes. > > I noticed the buzz come and go in discrete steps. I guess that's basestation > sending PCF commands to mobile, to level up/down the TX-power. > BS decides on this depending on signal-quality of MS as BS sees it. > It would be *very* helpful to confirm this, by using some RF-meter (e.g. > microwave leakage tester?), and/or reading the battery current, while > observing the noise come and go-
I can only observe: I did this test some weeks ago at my home. The FR has signaficantly better signal when held out of the window. When holding out of the window during a call, it takes a short moment then buzzing disappears quite suddenly. Going back into the room again after a moment the buzzing returns suddenly. So it comes and goes in discrete steps and it lags behind the change of position. BTW: Not that I would know anything about these things. But would it be possible to lower the TX-power of the FR to see how far down you can go without loosing connection? I have active speakers in my room that catch GSM signals. I noticed several times that the noise in the speakers when the phone is registering is louder with the FR than with a Motorola V3x with the same SIM.
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