var fDesc=new Array(); fDesc[0] = "UPB is a digital technology that has been extensively tested and researched in residential environments and found to be 99.9 percent reliable.

UPB transmits using a pulse over existing house wiring. The pulse has a long range and travels on powerlines. The UPB pulse is not susceptible to noise because it is spread spectrum."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }