Founded in 1968 and operating on 14.300, the MMSN is a network of radio amateurs meeting on 14.300 to serve maritime mobiles and deployed military primarily through traffic handling.

A group of amateur astronomers who meet weekly on the DuPage ARC repeater to discuss their mutual interest - eMail, IRLP and EchoLink participation are permitted. Reports, event notices and the experiences of check-ins are always welcome. (DuPage, IL)

A network of operators whose purpose is to provide support and assistance to boats at sea. In addition to traffic handling, tasks include conveyance of marine weather reports, phone patch service and rescue coordination.

Operating daily on 14.300, this group's purpose is to promote goodwill between operators and handle third-party traffic between approved countries and entities.

Operates on 3.960 KHz daily at 7:00 pm. Includes membership requirements, roster and photo album.

A directed net that meets each evening on or near the frequency 3970 KHz at 7:00 PM Pacific prevailing time. Includes officers, roster and links.

Meets on 7055 MHz 40 metres daily 7 am to 5 pm. Contains net control calendar.

Informal HF group net features discussion of DX conditions, signal reports, events schedule and amateur radio information. All amateurs welcome.

Promoting amateur radio with in-depth information, contest and QSL frequencies, contact list, and links.

An informal roundtable on 40-meters for all amateurs. Includes contact information and check-in times.