====== Channel Capacity ======

This spreadsheet puts Shannons Therom, Free Space Path Loss and thremal noise formula together to work out the theoretical maximum channel capacity (bits per scond) that can be squeezed through a communication channel given Frequency, Distance, Channel bandwith and transmit power. You can also enter total (transmit + receive) antenna gain.  

This is the highest theoretical data rate you can get given the parameters - the actaul rate will be lower than this and will depend on coding efficency and channel noise (e.g. sky noise, front end and amplifier noise).  

{{communication:channel_calc_V1.xls|G8KHW Frespace Channel Capacity Calculator}}

Enter data in the green cells - result in the yellow.

Play with the spreadsheet and see what difference the parameters make. 

Remember - ya canna change the laws of physics.