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How to Avoid Mobile Phone Interference w/ Speakers
EnzoTen asks: "Everyone has been sitting at their desk rockin, jamming, or groovin to their favorite tunes. You are in a trance, getting work done... then... BZZZPT... BZZTP..BTT.. BZZZZZZZZPTT... the blood curdling noise of your cell phone interferes with your desktop speakers playing 4 times the volume of your music and it takes everything in you not to flip your desk upside down, or throw your mobile phone across the room. Is there anyway to avoid mobile phones interfering with speakers? Are there speakers available that are shielded from this type of interference?"
happens all the time for me.. the only good thing is, is that if you are paranoid, you'll know when your cellphone talks to the tower.. you won't know what of your private information it is giving away.. but you'll at least know when it gives it away ;)
--hmhansolo --lnxmstr --gentooman
i'm frankly a bit surprised that so many people don't know what you're talking about - i know it very well, and it even affects my monitors.i actually like it -you get to see how long the cell-tower to phone negotiating takes, since it starts happening a couple of seconds before the phone actually rings or receives a SMS.
the solution, i guess, is simply to use more expensive shielded speakers, since that's what faraday cages do.
From wikipedia:
"In the 900 MHz band the uplink frequency band is 890-915 MHz, and the downlink frequency band is 935-960 MHz. This 25 MHz bandwidth is subdivided into 124 carrier frequency channels, each spaced 200 kHz apart. Time division multiplexing is used to allow eight speech channels per Radio frequency channel. There are eight burst periods grouped into what is called a TDMA frame. The channel data rate is 270.833 kb/s, and the frame duration is 4.615 ms.
The transmission power in the handset is limited to a maximum of 2 watts in GSM850/900 and 1 watt in GSM1800/1900."