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  • DIY 2G/3G/4G Wireless Cell Phone Signal Booster

    I was wondering the same...seemed like this design was totally without radio-electronics ma work for some by chance...but highly lacking in design priciples for RF and antennea system as a whole.Even a passive repeater may require proper consideration for line loss and coax length for possible phasing lossId like to see a passive systme for 700Mhz with typical lead in lenght for 1/2 ridgid and yagi at one end, dipole at other ( for inside)

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