var fDesc=new Array(); fDesc[0] = "The RF Calculator™ program is a free utility program that calculates various radio frequency data such as:

* dB Conversions
* Power Density
* Wavelength/Frequency
* Skin Depth
* Power Gain
* Frequency Band Allocations
* Common Formula Reference
* Material Characteristics
* Unit Conversions

System requirements:

* PC compatible system
* Windows 95 or later
* 2.5 MB free hard drive space
* Microsoft Equation Editor*"; 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 = ''; } }