Amateur
- 942
- Dallas County RACES
- Umbrella organization of the several cities whose municipalities reside within Dallas County, Texas. Resources include participation requirements, a Radio Officer directory, reference manual and schedule of regional nets.
- 943
- Garland RACES
- Garland, Texas. Information and resources reference manuals, how to guides, organizational information and relevant government data.
- 944
- Giles County RACES
- Includes emergency communications information, local weather alerts, current radar, SkyWarn classes, and links.
- 945
- Tarrant County RACES
- Team for Fort Worth, Texas, and surrounding area. Active in ARES and SKYWARN. Includes information on organization, events, training and contacts.
- 946
- Washington State University Amateur Radio Club
- Offers club announcements and news, exam schedules, and shack photos.
- 947
- Western Washington DX Club
- ARRL affiliated special service club resources include information and activities, VEC testing, DX information, and links.
- 950
- DL7AVF The Tubes and Valves Online Database
- European electron tube charts with characteristic data, basing diagrams, and application information. Includes Russian types.
- 951
- Datasheet Catalog
- .PDF datasheets for electronic components, including RF modules, transistors, integrated circuits, and amateur equipment.
- 953
- Tube Data Sheet Locator
- Data search, pin-outs and substitutes for many tubes. Includes links to schematics.
- 954
- FieldComm
- Resource for amateurs interested in GMRS, VoIP, echolink, Project-25 technology and other modes. Includes a message board and reference information. Based in central Virginia, but with a wide membership range.