Science & Nature
1439 sites
Subcategories:
- Astronomy & Space (396)
- Chemistry (8)
- Earth Sciences (26)
- Biology (79)
- Physics (30)
- Mathematics (59)
- Weather & Climate (104)
- Amateur Radio (682)
- Electronics (47)
http://wadenaham.org/
The Wadena Area Amateur Radio Club serves ham radio enthusiasts in the Wadena, Minnesota region, providing a community hub for local operators. This club site connects members and promotes amateur radio activity in the area.
http://ssastros.org/testsite
The South Shore Astronomical Society is a community astronomy club bringing together stargazers and space enthusiasts in the South Shore region. This appears to be the club's official web presence, serving as a hub for members and those interested in joining a local astronomical society.
http://n5hq.com/
N5HQ is the personal ham radio site of an Extra Class operator licensed since 1978, covering SSTV, DSSTV, QSL cards, antenna design tools, and amateur radio licensing resources. The site also highlights the operator's involvement as an ARRL Volunteer Examiner, Skywarn weather spotter, and Ten-Ten International member.
https://www.qsl.net/evarc
The Elkhorn Valley Amateur Radio Club (EVARC) serves ham radio enthusiasts in Norfolk, Nebraska, with meeting schedules, repeater frequencies, club nets, and licensing test sessions. Maintained by Monty Wilson NR0A, the site also links to propagation tools, ARES registration, local hamfest info, and nearby radio clubs across Nebraska.
https://www.qsl.net/wa6bgs
The Amateur Radio Club of El Cajon (WA6BGS) is an ARRL Special Service Club serving San Diego County, with information on monthly meetings, membership applications, and T-Hunting activities. The site includes a preserved 2005 version for historical reference alongside solar and geomagnetic field status indicators popular among ham radio operators.
http://skccgroup.com/
The Straight Key Century Club (SKCC) is a worldwide organization dedicated to CW (Morse code) enthusiasts who use traditional straight keys, bugs, and side-swiper keys on the air. With nearly 31,000 members and a rich program of sprints, awards, sked pages, and beginner resources, it is one of the largest and most active amateur radio clubs focused on traditional hand-keying.
https://repeater-builder.com/
Repeater Builder is a dedicated resource for amateur radio enthusiasts focused on building, modifying, and maintaining repeater systems. The site dives into the technical side of ham radio infrastructure, making it a go-to reference for hobbyists who want to construct or upgrade their own repeaters.
https://www.qsl.net/ema-arrl/clublist.html
A comprehensive directory of amateur radio clubs across Eastern Massachusetts, organized under the ARRL Eastern Massachusetts section. Visitors will find dozens of clubs listed by name with links, spanning general, repeater, packet, contest, school, and company club categories.
https://lcra.org.co/
The Liga Colombiana de Radioaficionados (LCRA) is Colombia's national amateur radio organization, founded in 1933 and serving as a member society of the IARU. The site covers licensing procedures, reciprocal license applications, frequency bands, club history, diplomas, and official resolutions for Colombian ham radio operators.
https://qsl.net/wwvarc
The White Water Valley Amateur Radio Club of Richmond, Indiana operates under club callsign N9JM and maintains this site as an informational hub for local ham radio enthusiasts. Visitors can find repeater frequencies, net schedules, club newsletters, officer contacts, and photos from special events like the McMaze Daze station operation.