Operating Aids


This section is devoted to helping you be a better ham.



Also see our Online Resources page in the Education and Training section.



  • LSB or USB?
         Why do we use Lower Sideband (LSB) on some HF bands and Upper Sideband (USB) on others?


  • Metric System.
         A brief description of the International System of Units (SI), with additional pages listing those units, prefixes and conversions.