pacealik Posted February 9, 2012 Report Share Posted February 9, 2012 AirGrid M2 16 dbi la WifiMarket.ro - Echipamente si antene wirelesse adevarat ca antena asta bate la 30 de km distanta? Quote Link to comment Share on other sites More sharing options...
Silviu Posted February 9, 2012 Report Share Posted February 9, 2012 In camp deschis, probabil ca da. Quote Link to comment Share on other sites More sharing options...
yo9gjx Posted February 9, 2012 Report Share Posted February 9, 2012 La frecvente mari, in general peste 100 Mhz propagarea undelor se face prin unda directa, extrem de rar prin reflexii. Prin urmare, indiferent de tipul antenei raza de bataie este "orizontul radio". Asta inseamna orizontul optic plus cam 15%, real depinde de frecventa si bineanteles de relief. Castigul antenei in acest caz ajuta la imunatatirea raportului semnal zgomot si destul de putin la marirea razei de lucru. Antena e excelenta, dar raza de acoperire depinde de ce "vezi" tu din pozitia pe care o ai. Uite aici un program excelent pentru simulare- VOACAP Quick Guide: HF Propagation Prediction and Ionospheric Communications Analysis Quote Link to comment Share on other sites More sharing options...
bruttus139 Posted February 9, 2012 Report Share Posted February 9, 2012 Numai in cimp deschis,si numai daca ai o placa de retea diferita de cele comerciale de pina la 100mw putere. Quote Link to comment Share on other sites More sharing options...
