** Find your 6 digit Grid Square here.
** Address at which you operate in most contests. This is used to determine if within the 175 mile boundary. (ARRL rules require unlimited and medium class clubs to define their territory by a rectangle or by a 175 mile radius circle around the club center.)
** Reflector is the name hams have given to an email list server. Reflector members can send an email to the list server which then sends it out (reflects it) to all of the Reflector members. Think of it as a group chat that club members may choose to join. (More below)