amplifying cellphone signal

Discussion in 'General Electronics Chat' started by Precious Molina, Sep 30, 2015.

  1. Precious Molina

    Thread Starter New Member

    Sep 6, 2015
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    theres no signal inside my room but on the outside there is, is there a way to amplify a signal, i dont want solder my cp, i just want somehting like putting my cp above the it
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
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  3. Precious Molina

    Thread Starter New Member

    Sep 6, 2015
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    can transistor, opamp or sumthing do that like diy?
     
  4. kubeek

    AAC Fanatic!

    Sep 20, 2005
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    I doubt that, even if you could do it, that you would get below the price of a ready made unit.
     
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  5. alfacliff

    Well-Known Member

    Dec 13, 2013
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    sure, you could make an amplifyer, just study for years and learn to make microwave circuits, and hope the fcc dossn't catch you. otherwise, otherwise, try the passive repeater method, an antenna outside your window, and another inside, connected with coax, should get signals through the walls.
     
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  6. Precious Molina

    Thread Starter New Member

    Sep 6, 2015
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    i thought simple discreet do that, so antenna would do, i try passive insted thanks kubeek alfacliff
     
  7. alfacliff

    Well-Known Member

    Dec 13, 2013
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    the passive repeater is used a lot when metal buildings block radio signals.
     
  8. MrSoftware

    Active Member

    Oct 29, 2013
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    That's an interesting idea, I would have thought the losses would have been too great for that to be effective. Does anyone know how well this works with WiFi frequencies (approx 2.4-5GHz)? I would have thought the losses would have been too great for this method to be effective, sounds like I made a bad assumption! :)
     
  9. alfacliff

    Well-Known Member

    Dec 13, 2013
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    how much loss? maybe you are thinking about real long coax runs? even a coax with a loss of 20 db per 100 ft has only 2 db for 10 feet.
     
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