Home » Regulations » 15 If the qualified operator of an amateur radio station is absent overseas, the home station may be used by:   a.   any member of the immediate family to maintain contact with only the qualified operator   b.   any person with an appropriate General Amateur Operator Certificate of Competency   c.   the immediate family to communicate with any amateur radio operator   d.   the immediate family if a separate callsign for mobile use has been obtained by the absent operator