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

 

buy a cellphone amplifier such as this http://www.ebay.com/itm/CDMA-850MHz...na-Kit-LS4G-/400725353534?hash=item5d4d17a43e

 

can transistor, opamp or sumthing do that like diy?

 

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

 

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.

 

i thought simple discreet do that, so antenna would do, i try passive insted thanks kubeek alfacliff

 

the passive repeater is used a lot when metal buildings block radio signals.

 

the passive repeater is used a lot when metal buildings block radio signal

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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!

 

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.