television and radio signal repeaters are installed on a mountain

3g 4g 5g 6g tv aerial antenna broadband broadcast campo molon cellular eavesdrop gprs gsm hill hilly industrial intercept italy landscape mount mountain mountains peak radar repeater ripetitore signal summit telecom telecommunication telecommunications tip top transmission umts uphill wiretap mountaintop television repeaters radio communication signals maximum users technology infrastructure remote areas coverage connectivity height reception wireless rural urban accessibility