TAPR is an international non-profit educational research and development organization focused on the issues of amateur radio wireless digital communications.

Phoenix-based club sponsors high altitude amateur radio balloon flights. Lists flight schedules, meeting times, and equipment payloads.

Includes club pictures, newsletter, and meeting times and location.

A group of ham radio operators in the Phoenix area whose primary interest is in DXing. Includes member list.

Includes calendar, newsletter, and links.

Phoenix-area club lists contact information and links.

Resource for the Southwest Salt River Valley in Arizona. Features club news and meeting information, frequencies, and local links.

Provides information about activities. Includes photographs and contacts.