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  1. JDELUNA's Avatar
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       #1  
    Just wondering why instead of bluetooth, they used 2.4Ghz or even 900Mhz for headsets ?? the Plantronics CS50 900Mhz headset I use at work now, has an advertised range of 300 Feet, I have personally taken it about 75 feet or so. The range would be pretty great even if it had 1/4 the current transmitting power of what is in a cordless phone. Just thinking. God Bless.
  2. #2  
    Hey, that sounds pretty good.
    Supposedly you can't listen to MP3 on BT.
    Can you listen to MP3's with your wireless headset?
    I know I can't with my BT headset.
    Just call me Berd.
  3. #3  
    Bluetooth uses 2.4Ghz. Bluetooth was develope to use very very little power and that's why it has such a short range... about 1 milliwatt. For comparison, cell phone calls use up to 3 watts. I'm sure those coreless phone use more power then that to achieve those long ranges.

    More details about why Bluetooth was developed here:
    http://electronics.howstuffworks.com/bluetooth2.htm
  4. JDELUNA's Avatar
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       #4  
    Quote Originally Posted by paqmaster
    Bluetooth uses 2.4Ghz. Bluetooth was develope to use very very little power and that's why it has such a short range... about 1 milliwatt. For comparison, cell phone calls use up to 3 watts. I'm sure those coreless phone use more power then that to achieve those long ranges.

    More details about why Bluetooth was developed here:
    http://electronics.howstuffworks.com/bluetooth2.htm

    I do not think our cell phones now use or transmit at the full 3 watts of power like they did in the early 90's with the brick phone and bag phones. I think the ones we have now are less than 1 watt or like 600 milliwatts as we have more cell towers, where-as back in the day the regular analog system with fewer towers, one needed more transmitting power for the phones. Hope this helps. God Bless.
  5. #5  
    You're probably right... but sometimes it seems like my Treo is using up more then 3 watts when I'm in a low signal area the way my battery drains!

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