Solved mobile broadband

Discussion in 'Microsoft Surface Pro 3' started by veracee, Mar 30, 2015.

  1. veracee

    veracee New Member

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    Am i able to use a dongle in USB port for mobile broadband on my Surface Pro3?
    I connect by wi-fi to our home broadband with no problems, but need something for when i am away from home to connect.
     
    Last edited: Mar 30, 2015
  2. wditters

    wditters Active Member

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    Yes, you can ... but what about tethering with your smartphone>? Works equally well.
     
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  3. veracee

    veracee New Member

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    Thanks for your reply.
    I do have a smartphone and i have not tried to tether it. However i have tethered it to my ipad which has a lot of pre paid data on.
    Just wanted to know if it was possible to get mobile 4G network on SurfacePro3.
     
  4. GreyFox7

    GreyFox7 Super Moderator Staff Member

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    No reason it shouldn't work, but be prepared for it to suck on the battery like a vampire. :)
     
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  5. veracee

    veracee New Member

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    Thanks....;)
     
  6. GreyFox7

    GreyFox7 Super Moderator Staff Member

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    Most of these devices do not publish their power requirements anymore, something of a modern phenomena in the it just works age you don't need to know the details. I found an older device that required a max of 500ma in high power mode, 45ma standby/idle and 180ma connected. This device listed Vista as the newest OS supported so that would have been around 2007 ish.

    Someone that measured some USB 3G/4G modems published results showing a max of 308ma, 130-170 avg. and 38ma min. With the units tested.

    The SP3 conforms to the 900ma power spec for USB so these should work fine with typical max draw under 500ma or less. If it exceeds the 900ma it's going to power cycle. In the unlikely event it draws that much power there's either something wrong with it or it's just a power hog and you should try a different model.
     
  7. 5parky

    5parky New Member

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    I use a Huawei E1752C 3G dongle with mine. No problems and no noticeable high battery drain
     
  8. GreyFox7

    GreyFox7 Super Moderator Staff Member

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    Quick napkin math.
    If you get 8 hours from your battery and you plugin and use a 150ma USB 3G/4G modem continuously you would get an hour less battery life.

    SP3 battery 42Wh/8 = 5.25w/hr.
    150ma x 5V/1000 = .75wh
    5.25 +.75 = 6wh
    42/6 = 7 hours.
    .75/5.25 = .1428 or 14.3% increase per hour used.

    YMMV depending on usage.
     
    Last edited: Mar 30, 2015
  9. veracee

    veracee New Member

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    Thank you all for your input.
     
  10. stufried

    stufried New Member

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    This is a dumb point, but if you tether a hotspot, be sure to turn the wifi part off.
     
  11. Nitric

    Nitric Member

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