Scratchpad

This page is under construction and will remain so. I'm using it as a convenient place to host my engineering tools and calculators. Do not use any of these calculators for anything important. They are works in progress or they are only valid under unstated assumptions or both.

JavaScript Console

Type JavaScript math expressions into the input box below (e.g. x=2+3) and hit ENTER to execute. The Math module is aliased as m, so Math.sin() is m.sin(), etc. This is extremely early in development, so right now there is no error checking, there are very few useful functions included, and it is extremely easy to break.










Your IP Address is 52.15.42.61 










Path Loss Calculator


Enter radio parameters in the form, press ENTER to calculate
path losses and generate plot. Refresh page to clear.






Tx Power: 

 dBm




Tx Height: 

 m




Tx Gain: 

 dBi








Rx Height: 

 m




Rx Gain: 

 dBi








Rx Threshold: 

 dBm








Frequency: 

 MHz








Range: 

 m








Fade Margin: 

 dB








Freznel Rmax: 

 m








Free Space Prx: 

 dBm








Plane Earth Prx: 

 dBm