Sterling Park Amateur Radio Club (SPARC)

The Sterling Park Amateur Radio Club (SPARC), operating under the club callsign K4NVA, is one of Northern Virginia’s long-established amateur radio communities. Based in Sterling, Virginia, the club has been affiliated with the American Radio Relay League (ARRL) since February 27, 1971, giving it more than five decades of involvement in amateur radio.

SPARC brings together operators with interests ranging from everyday amateur radio operation and technical experimentation to licensing, mentoring, contesting and public-service communications. According to its latest ARRL club report, SPARC has 65 members, all of whom are licensed amateur radio operators, with 46 also holding ARRL membership.

One of SPARC’s most visible contributions to the wider amateur radio community is the Virginia QSO Party, which the club continues to sponsor each year. The event encourages operators to make contacts throughout Virginia’s 95 counties and 38 independent cities. In 2026, the contest received 529 submitted logs, with every Virginia county and independent city activated during the event.

SPARC also sponsors the ARRL Fourth Call Area Incoming QSL Bureau, helping handle international QSL cards for amateur operators across the W4 call area. Alongside these broader services, the club remains active locally through regular meetings, ARRL Field Day participation, technical presentations, licensing support and member activities.

The club’s current programme reflects the wide range of interests found in modern amateur radio. Its 2026–2027 calendar includes equipment show-and-tell sessions, discussions of the National Traffic System, presentations on digital voice technologies such as FreeDV, preparations for the Virginia QSO Party and participation in ARRL Field Day.

For newcomers, SPARC also offers an accessible route into the hobby. The ARRL lists the club as providing entry-level licensing classes, license examination sessions and mentoring, making it a useful resource both for people taking their first steps into amateur radio and for experienced operators looking to explore new modes, technologies and operating activities.