Author: Herbert Wolverson, Posted: Tuesday, 04-14-15
Using a basic free-space path loss and link-budget calculation, it is possible to determine whether a link is possible. However, that calculation doesn\\\'t give you much immediate feedback as to how useful the link will be. The actual throughput of a functional link-budget is determined by two factors: modulation scheme, and channel-width. Additionally, a certain signal quality is required to achieve a given modulation scheme. This section will help you understand channel modulation schemes.